Complexity, Evolution and Organizational Science By P.M.Allen1, L. Varga1, M. Strathern1, C. Rose Anderssen2, J. Baldwin2 and K. Ridgway2 (1) School of Management, Cranfield University, Beds MK43 0AL, p.m.allen@cranfield.ac.uk (2) AMRC, Engineering Dept. Sheffield University, Abstract A highly significant property of complex systems is that they create structure at several levels. This is important because “selection” occurs from the outside in, while exploration occurs in the opposite direction. In 1976 Allen proposed an evolutionary criterion which said that for a new behaviour, variable or population to emerge, first of all a new type had to be “tried out”, and secondly the surrounding system had to be unstable to its appearance. In addition (Allen and Ebeling, 1983) showed that a more accurate, probabilistic model of the growth of a new element from initially tiny numbers was fairly random and therefore the operation of selection at the level of individual experiments was in fact very uncertain and non-deterministic. But this seemingly inefficient “messiness” of the initial stages of any evolutionary step in fact allows the build-up of heterogeneity in populations, providing a capacity to break out in a new direction or to solve any problem – given enough time. This means that the core of any sustainable organization in a changing world has to be the ability to create and maintain a pool of exploratory heterogeneity from which new ideas and innovations can spring. Therefore this is what, ultimately, evolution will select for. The paper will provide examples of these ideas at work in organizational evolution and supply chains, demonstrating the importance of the multi-level complexity that unwittingly orchestrates this messy process of evolution. Keywords: Complexity, evolution, co-evolution, organization, cladistics, open systems, structural attractors, resilience, supply chains, practices Complexity, Evolution and Organizational Science Introduction In this paper we shall show that complexity science provides us with the mathematics and mechanisms of evolution. Furthermore, because evolution is about the creation and on-going transformation of structure and function, the understanding of complex systems is therefore the basis for organizational science. The many different approaches and ideas that have been developed in exploring the relationship between complexity and organizational behaviour have been reviewed recently by Maguire, McKelvey, Mirabeau and Oztas (2006), in the Handbook of Organizational studies. We shall not attempt to summarize this wide-ranging review, but instead try to put forward a coherent view of our own that starts from a 1976 paper by one of us (Allen, 1976) which provided a mathematical basis for the condition required for an evolutionary step to occur. This showed how physical, ecological or human organizations are shaped by path dependent, historical events within them in dialogue with their environment, a dialogue which the Second Law of Thermodynamics tells us must provide adequate resources to maintain or grow the organization or structure. The context of an organization is of course its physical, economic and technological environment, as well as other organizations, individuals and the cultural and social realities of the moment. As Tsoukas and Chia (2002) say: “Firstly, organization is the attempt to order the intrinsic flux of human action, to channel it towards certain ends by generalizing and institutionalizing particular cognitive representations. Secondly, organization is a pattern that is constituted, shaped, and emerging from change.” The co-evolution of an organization with its context is therefore about the continual to and fro of modification as the “inside” and the “outside” of the organization restructure over time, blurring the separation and indeed, sometimes radically re-defining the boundary. So, organizations may separate into different specialist arms, or outsource work that was previously done in-house. A supply chain may become the relevant competitive unit rather than the firm, and indeed, we may see that evolution is governed by changes within an ecology of interacting entities, none of which control the changes that are occurring. In an recent review of complexity and organizational change Burnes, 2005, points out that there is in fact a very large consensus that organizations are facing unprecedented levels of change and that their ability to manage change is therefore of great importance (Brown and Eisenhardt, 1997; Cooper and Jackson 1997; Dawson. 2003; Dunphy et al, 2003; Greenwald, 1996; Johnson and Scholes, 2002; Kanter et al, 1997; Kotter, 1996; Peters, 1997; Romanelli, and Tushman, 1994). However, despite this organizational change has proved to be very difficult, with up to 80% failure rate (Beer and Nohria 2000; Brodbeck 2002; Bryant 1998; Burnes 2004b; Clarke 1999; Harung et al. 1999; Huczynski and Buchanan 2001; Stickland 1998; Styhre 2002; Whyte and Witcher 1992; Witcher 1993; Zairi et al. 1994). This suggests that the traditional way of looking at and planning organizational change and evolution is somewhat flawed, and that perhaps complexity can offer us some help in improving this performance. Despite the ubiquitous nature of evolutionary processes, we still tend to understand and make sense of what is occurring by looking at successive “snapshots” of the organization at different moments, which should be seen as successive “stable” (temporarily) regimes of operation. These arise and persist (temporarily) when the interactions between their heterogeneous elements are such as to lead to a flow of resources from the environment, necessary to maintain the elements and their coordination. Clearly, any structure or organization can either persist by finding an environment that will maintain it, or it must adapt itself to draw sustenance from where it is. The importance of the openness of an organization to its environment points to the absolutely fundamental significance of the idea of the “fit” between an organization and its environment. This immediately tells us that the “fitness” of any organization or structure is a measure of its ability to elicit, capture or merit resources from its environment. In order to maintain “fitness” in a changing environment then, it will be necessary for the organization to be capable of actively transforming itself over time. This creates a second level of explanation of organizational behaviour. The first level is that it must be such as to obtain resources from the current environment. The second is that it must also be capable of changing itself in such a way as to respond to the changing environment. This environment will consist among other things, of other organizations with similar objectives, and so we can directly see that there will be two directions of change: 1) the ability to out compete similar organizations, or 2) the ability to discover other “niches” which can still command resources, but which escape the competition. Here we shall use complex systems’ ideas to show how we can understand organizational behaviour, and reveal the elements and characteristics that lead to successful organizations. Evolutionary Drive “Evolutionary Drive” was put forward some years ago (Allen and McGlade, 1987) as the underlying mechanism that describes the change and transformation of complex systems. In this view evolution is driven by the interplay over time of processes that create micro-diversity at the elemental level of the system and the selection operated by the collective dynamic that results from their interaction together with that of the system with its environment. It is fundamentally an ecological perspective on the evolution of organization and structure, as it is based on the occurrence of successive instabilities in the collective patterns of interaction. We can devise a simple computer program to demonstrate this idea, by considering a population that initially sits at a low point of a fitness landscape, and then has random variation of individual fitness. Some of these may of course be non-viable, but others will be distributed among higher and lower fitness. However, those that are of higher fitness will grow at the expense of those of lower fitness, and so gradually the population will “climb” the fitness landscape. This experiment tells us that a population will increase its fitness – climb the hill – providing only that the behaviour of diverse individuals “explores” possible increased pay-offs that may exist. Ignorance and error making are very robust sources of such exploration. Clearly random changes in the design of any complicated entity will mean that many experiments are simply non-viable, which tells us that there is an “opportunity cost” to behavioural exploration. However, it does not change the fact that a species WILL climb the fitness landscape by simply making random “errors” in its behaviour, providing that these are detected and copied. Figure (1). A population initially of low fitness will increase its fitness simply by making random errors in its behaviour. In a second experiment we can examine “how much” diversity creation (errormaking) wins in the discovery of better performance. In this experiment we launch two populations simultaneously at the foot of the fitness hill, and see how successfully they climb it. Here population 1 is assumed to have a 5% exploration rate in character space, while population 2 has 10%. However, we also make the assumption that of these “random” experiments, only 2% are actually viable, which means that there is a considerable “opportunity” cost in exploring rather than making perfect copies. Initially, population 2 wins, because, despite its cost in non-viable individuals, diffusing faster is rewarded by the fitness slope but later when the hill is climbed, faster diffusion in no longer rewarded and population 1 dominates. This sequence of events is shown in figure (2). Figure (2). If we have two populations that have different rates of “exploration” then we find that the relative success changes from early exploration to late exploitation. Our model shows that when we are in a new domain, and there is much to learn – then high rates of exploration pay off. However, when we are in a mature system that has already been thoroughly explored there is no point wasting effort on further exploration. Of course, we can only know the there are opportunities or not by actually engaging in exploration, but clearly, unless there is some structural change, the value of exploration falls with sector maturity, and this will lead exploration behaviour to switch to exploitation. Figure (3) The coupled effects of mechanisms producing individual heterogeneity and differential performance in the collective dynamics leads to Evolutionary Drive. In a detailed probabilistic model of the initial phases of the growth or decline of any new behaviour, Allen and Ebeling (1983) revealed great uncertainty. Even much better behaviours had high probabilities of not surviving, figure (4), while worse behaviour could take a long time to be eliminated. Because of this, the knife-edge selection often assumed separating successful and lethal mutations, is seen to be false. Figure (4). The probability of survival for an initial mutant individual. (Allen and Ebeling, 1983) The real picture is much messier than this and allows much greater pools of individual heterogeneity to be tolerated by the collective dynamics. Instead of a clear mechanistic amplification of improvements, and the suppression of any behaviour less than the best, it means that a population of individuals can form a “cloud” of heterogeneity in the fitness landscape and can cross valleys and find alternative peaks of fitness to climb. As shown in figure (3) over time, given the existence of an outward exploration and diffusion in character space, the differential dynamics that the fitness landscape represents shape the collective structure. Evolution operates through this dialogue between the internal exploration of behaviours and the fitness landscape representing their differential growth and decline over time. This view of evolution implies that over longer time scales it is the imperfect transmission of behaviours that allows exploration and it is the imperfect selection operated by the environment that allows the creative heterogeneity to persist inside systems. Over the long term evolution will select for systems that maintain these imperfect processes and against those that are seduced by the clarity of either. In short the macrostructure of the collective system provides a protective shell within which behavioural exploration can take place, and genuine novelties allowed to develop through initially poorly performing stages. In human systems, the typical development of economic sectors and markets, as shown in the work of M. Hirooka, 2003, both expresses and results from the fact that initially search is rewarded, and therefore the bundling of components attracts investments. However, as the sector becomes well-established the pay-offs to new types of products falls, and so investment falls. It then switches to some other area that may seem to offer better opportunities. This is exactly what our simple theoretical model above predicts. The presence of firms with different levels of exploration and exploitation (errormaking and accuracy) will automatically lead to evolution selecting whichever is most appropriate. So, evolution will be driven by the amount of diversity generation to which it leads. Exploration is % Complete no longer rewarded Reservoir of Core Technologies Product Creation Product Diffusion ~ 25years ~10years Exploration strongly rewarded Time Figure (5).. The evolution of any industrial sector (M. Hirooka (2003)) may be explained by a similar dynamics to that of figure (2), where investment gradually switches from exploration to exploitation. And this brings Evolutionary Drive very close to the ideas of creative destruction and evolutionary economics expressed initially by Schumpeter (1942); Foster and Kaplan, 2001; Metcalfe, (1998, 1999), as well as to the views of Tsoukas and Chia (2002) who see organization as an emergent and passing outcome of an on-going evolution. We shall therefore establish the basis of the complex evolutionary processes that give rise to the emergence and development of organisations and the behaviours and identities of the participating elements and individuals. Our aim here is to show that successful organizations require underlying mechanisms that continuously create internal micro-diversity of ideas, practices, schemata and routines – not that they will all be taken up, but so that they may be discussed, possibly tried out and the either retained or rejected. It is this that will drive an evolving, emergent system that is characterised by qualitative, structural change. These mechanisms also explain exaptation (Gould and Vrba, 1982; Gould, 2002) since the micro-diversity pre-exists the “uses” and “niches” that they later embody. It firmly anchors success in the future on the tolerance of seemingly unnecessary perspectives, views, and ideas, since it is through the future implementation of some of these that survival will be achieved. If we define the diversity within an organization as the different functional types that are present – the number of different boxes in a systems diagram - then this System Diversity is emerges through an evolutionary process resulting from the existence of micro-diversity within the functional types - at the level below. In other words the organizational behaviour and the functional types that comprise it now, have been created from the competitive and/or cooperative interactions of the micro-diversity that occurred within them in the past. Evolutionary Drive tells us that evolution is driven by the noise to which it leads. Complexity and Evolutionary Drive We understand situations by making creative, but simplifying assumptions. We define the domain in question (the boundary) and by establishing some rules of classification (a dictionary) that allow us to say what things were present when. This means that we describe things strategically in terms of words that stand for classes of object. The “evolutionary tree” is an abstraction concerning types of thing rather than things themselves. In order to go further in our thinking, and get more information about an actual situation, we then consider only the present, and say, what is this system made of NOW, and how is it operating NOW. This is “operational” not strategic. It therefore assumes structural stability and takes us away from open, evolutionary change, to the effects of running a fixed set of processes. If the events considered are discreet, then the running is according to a probabilistic dynamics, and we have what is called stochastic non-linear dynamics, where different regimes of operation are possible, but the underlying elements never change nor learn, nor tire of their behaviours. Two paths are then possible. Either we can assume that the probabilistic dynamics moves rapidly to a stationary distribution then we find the ideas of “selforganized criticality” and sometimes power law distributions. But if we assume that we can use average rates instead of probabilities for the events, then we arrive at deterministic, System Dynamics. This is in general, non-linear dynamics, and may be cycles or chaos or at equilibrium, but what happens is certain, simple and easy to understand. This set of simplifying assumptions is shown in figure (5). On the left hand side we have the “cloud” of reality and practice. Here, we are in the realm of non-science, in which people try to sum their experiences informally, and come up with heuristic rules and folklore of various kinds to deal with the problems of the real world. Science begins by deciding on a boundary within which explanation will be attempted, in the context of the environment outside. This again shows the difficulty that science will have in dealing with open systems. Figure (6). Successive assumptions that lead to “scientific” understanding of a situation. If the environment “responds” to the changes in the “inside” then other systems may be affected by the changed capacities of the system within the chosen boundary, and so the understanding will fail over some longer time scale and system and environment co-evolve. The series of assumptions necessary to arrive at either System Dynamics, or stationary probabilities are shown in Table (1). Number Assumption Made 1 Boundary assumed 2 Classification assumed 3 Average Types 4 First Pathway Statistical Attractors 4 5 Second Pathway Average events, dynamics of average agents Attractors of Non-Linear Dynamics Resulting Model Some local sense-making possible – no structure supposed. Strategic, Open-ended Evolutionary – structural change occurs. Statistical Distributions part of evolutionary process, can be multi-modal Operational, Probabilistic, Non-Linear Equations, Master Equations, Kolmogorov Equations – assumed structurally stable. Statistical distributions can be multi-modal or power laws Self-Organized Distributions. Criticality, Power law Deterministic Mechanical Equations, System Dynamics – assumed structurally stable. No statistical distribution. Study of attractors, Catastrophe Theory. Non-Linear dynamics with point, cyclic or chaotic/strange attractors. Table 1. The General Complexity Framework There are two different routes to final simplifications: Consider the stationary solution of the probabilistic non-linear dynamics – the Master or Kolmogorov equation – the stationary probability distribution corresponding to “self-organized criticality”. Consider the dynamics of the average, mean or first moment of the probability distribution, and assume that this can be uncoupled from the higher moments. This leads to deterministic system dynamics – a mechanical representation of the system. We can then study the attractors of this simplified system, and find either point, cyclic or chaotic attractor dynamics as the long term outcome. The different models on the right hand side arise from making successive, simplifying assumptions, and therefore models on the right are increasingly easy to understand and picture, but increasingly far from reality. The operation of a mechanical system may be easy to understand, and indeed may correspond closely to what we would define as the “organization”, but that simplicity has assumed away the more complex sources of its ability to adapt and change. A mechanical model is more like a “description” of the system at a particular moment, but does not contain the magic ingredient of micro-diversity that constitutes Evolutionary Drive. The capacity to evolve is generated by the behaviours that are averaged by assumptions 3 and 4 – average types and average events – and therefore organisations or individuals that can adapt and transform themselves, do so as a result of their non-fulfilment of assumptions 3 and 4. That is the generation of micro-diversity and the interactions with micro-contextualities. This tells us the difference between a reality that is “becoming” and our simplified understanding of this that is merely “being” (Prigogine 1981). These ideas have been applied to describe the evolution of economic markets (Allen, Strathern and Baldwin, 2007) and to a practical example of Canadian fisheries (Allen and McGlade, 1987a; Allen, 1998). Now we turn their application to organizational science. 4 Evolution of Manufacturing Organisations The study of organizational change and strategy can be looked at by reflecting on the organizations in terms of their constituent practices and techniques. The changing patterns of practices and routines that are observed in the evolution of firms and organisations can be studied using the ideas of Evolutionary Drive. We would see a “cladistic diagram” (a diagram showing evolutionary history) showing the history of successive new practices and innovative ideas in an economic sector. It would generate an evolutionary history of both artifacts and the organisational forms that underlie their production (McKelvey, 1982, 1994, McCarthy, 1995, McCarthy, Leseure, Ridgeway and Fieller, 1997). Here we look at manufacturing organisations in the automobile sector. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Standardization of parts Assembly Time Standards Assembly Line Layout Reduction in Craft Skills Automation Pull Production System Reduction of Lot Size Pull Procurement System Operator based machine maintenance Quality Circles Employee innovation Prizes Job Rotation Large Volume Production Mass Sub-Contracting by sub-bidding exchange of workers with supplers Training through socialization Pro-active Training Programme Product Range reduction 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Autiomation (machine paced shops) Multiple sub-contracting Quality Systems Quality Philosophy Open Book Policy with Suppliers Flexible Multi-functional workforce Set-up time reduction Kaizen change management TQM sourcing 100% inspection sampling U-shaped layout Preventive Maintenance Individual Error correction Sequencial dependency of workers Line Balancing Team Policy Toyota Verification Scheme Groups vs Teams 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Job enrichment Manufacturing Cells Concurrent engineering ABC Costing Excess capacity Flexible Automation of product versions Agile automation for different products In-Sourcing Immigrant workforce Dedicated automation Division of Labour Employees are system tools Employees are system developers Product focus Parallel processing Dependence on written rules Further intensification of labour Table (2) 53 Characteristics of manufacturing Organisations With these characteristics (Table (2)) as our “dictionary” we can also identify 16 distinct organisational forms: Ancient craft system Standardised craft system Modern craft system Neocraft system Flexible manufacturing Toyota production Lean producers Agile producers Just in time Intensive mass producers European mass producers Modern mass producers Pseudo lean producers Fordist mass producers Large scale producers Skilled large scale producers Cladistic theory calculates backwards the most probable evolutionary sequence of events Figure (7). Figure (7). The cladistic diagram for automobile manufacturing organisational forms. Again, in agreement with the ideas of Evolutionary Drive, we shall look at this as being the result of micro-explorations, and then a differential amplification of systems with emergent capabilities. We have studied the evolution of the automobile production industry by conducting a survey of manufacturers, and obtaining their estimates of the pair-wise interactions between each pair of practices. In this approach, the microscopic explorations consist in the attempts to connect in new practices to an existing system, with the object of improving performance and creating positive emergent capabilities. As has been reported before, we can understand and make retrospective sense of the evolution of the automobile industry. We have then been able to develop an evolutionary simulation model, in which a manufacturing firm attempts to incorporate successive new practices at some characteristic rate. The “receptivity” of the existing complex determines which new practice will in fact be amplified or suppressed if it tries to “invade”. We can develop a model that expresses the growth of a firm as the result of the net synergy of its internal practices. The general form is: dP(i) b * P(i) * (1 dt Pair(i, j).P( j)) * (1 j P(i ) ) m * P(i ) N Where: P(i) is the size of practice i. b and m are common resource input and output terms Pair(i,j) is the pair matrix expressing the synergy or conflict between practices I and j N is some limiting market size Figure (8). Successive moments (t=3000, 10000 and 15000) in the evolution of a particular firm. The evolutionary tree of the organisation emerges over time. One possible history of a firm is shown in figure (8). The particular choices of practices introduced and their timing allows us to assess how their performance evolved over time, and also assess whether they would have been eliminated by other firms. As a result of the different firms experimenting over time, there is an incredible range of possible structures that can emerge, depending simply on the order in which practices are tried. But, each time a new practice is adopted within an organisation it changes the “invadability” or “receptivity” of the organisation for any new innovations in the future. This is illustrates the “path dependent evolution” that characterises organisational change. Successful evolution is about the “discovery” or “creation” of highly synergetic structures of interacting practices. The model starts off from a craft structure. New practices are launched with an “experimental” value of 5. Sometimes the behaviour declines and disappears, and sometimes it grows and becomes part of the “formal” structure that then changes which innovative behaviour can invade next. The model shows how the 16 different organizational forms have increasingly high synergy as they change in the direction of lean and agile Japanese practices. Overall performance is a function of the synergy of the practices that are tried successfully. The particular emergent attributes and capabilities of the organisation are a function of the particular combination of practices that constitute it. Different simulations lead to different structures, and there are a very large number of possible “histories”. This demonstrates a key idea in complex systems thinking. The explorations/innovations that are tried out at a given time cannot be logically or rationally deduced because their overall effects cannot be known ahead of time. Therefore, the impossibility of prediction gives the system “choice”. The competition between different firms exploratory pathways through time means that those who for one reason or another fail to find synergetic combinations of practice, will be eliminated. Once again we find the principle of Evolutionary Drive, where the micro-explorations involving the testing of new practices leads to microscopic diversity among firms, and in turn these are either amplified or suppressed by the economic competition. 5. Aerospace Supply Chains Large commercial aircraft manufacturers traditionally defined and specified exactly what their first tier suppliers should produce for them. This practice that expressed a high level of buyer dominance over suppliers has gradually changed as the result of a world wide reorganization of the industry. Aerospace supply chains have evolved qualitatively as different practices and conventions have emerged that profoundly shift the relationships between the participating companies. (Giunta et al, 2000). Day and Atkinson (2004), argue that high impact suppliers have to commit themselves to cost reductions for long term business relationships, and create a culture of continuous improvement. However, Nollet et al (2005) argue that even greater competitive advantage can only be achieved by producing innovative solutions in terms of technology and products. Recent developments in supply chain strategies are therefore based on a focus upon the sharing of skills and capabilities (Cousins and Spekman, 2003). In the context of creating technologically more advanced products, supply chains need to become learning communities with skills in creating and transforming knowledge (Preiss and Murray, 2005). In that sense, Easterby-Smith et al (2005) highlight the absorptive capacity of a firm to appreciate and process external knowledge and the learning from past experiences. Engeström (1987), however, is more concerned about the learning and development experienced when moving away from the old. And this is about the creation of the new, i.e. innovation. Risk-sharing partnerships combine these views in practice by bringing together the best expertise available to produce totally new concepts of aircraft design. These partnerships are the response to the need for sharing of skills, expertise and capabilities. This is driven by the fact that an airframe manufacturer cannot carry such huge investments in capital and expertise alone. The tight integration of risk-sharing partnerships can facilitate a totally new aircraft concept (Rose-Anderssen et al, 2008). This paper therefore focuses on the levels of learning and knowledge transformation involved in the development of these practices. In order to establish the evolution of supply chains and their management, we have examined the practices, techniques and characteristics that exist in aerospace supply chains, particularly in the upper tier. From our interviews and surveys we have examined what these practices, techniques and characteristics are and the underlying beliefs that underpin the changes. 5.1 The Dimensions of Supply Chain Performance An examination of the literature and a series of interviews with managers involved in the aerospace supply chain of the major civil aviation manufacturers identified the importance of 5 basic dimensions of performance: 1) Quality; 2) Cost Efficiency 3) Reliable Delivery 4) Innovation and Technology 5) Vision. The stage in the life cycle of the product, or the market situation, determines what mix of these is required as the platform or product moves from design and conception, through initial prototyping and production to an eventual lean production phase. In addition 27 key characteristics or practices were identified that could characterize supply chain relationships. A questionnaire was formulated to enquire into the opinion of important individuals within these key aerospace supply chains in order to understand better the underlying beliefs that affect the decisions concerning the structure of supply chains. The first three dimensions of performance can be seen as those of “operationality” – the successful functioning of a production system in producing high quality products reliably and cost effectively. The dimensions 4 and 5 however, are really about the supply chain future. They are about the creation of the next product that will become the focus of operational behaviour later. So, these two dimensions concern the creative, exploratory behaviour without which there will be no long term future. The ideas used to examine the structure and evolution of supply chains are based on complex systems thinking under the ESRC NEXSUS project, which developed evolutionary models of organizational change (Allen, Strathern and Baldwin, 2007; Baldwin…., ). These were based on a cladistic analysis of the history of an industry in terms of its constituent practices, characteristics and techniques (McKelvey, 1983; McCarthy,…). These demonstrate how firms adapt different practices in a path depende 5.2 Questionnaire on Supply Chain Practices The questionnaire has two parts. The first concerned the potential interaction between each pair of practices. The practices that are considered are: 1, Outsourcing competitive advantage 2. Outsourcing what is easily imitated 3. High level of collaborative relationship 4. Arms length relationship 5. Long-term relationship 6. Formal partnership 7. Subcontracting whole systems and sections 8. Flexibility of operations 9. Risk-sharing 10. Sharing knowledge 11. Offsets as part of sales contract 12. Culture of continuous improvement 13. Ability to handle cultural differences 14. High level of dominance over supplier 15. High level of planning and control 16. Easy dialogue with supplier 17. IT system integration 18. High levels of integration in chain 19. Responsive to market change 20. Transparent organisation 21. TQM procedures 22. Just-in-time delivery 23. Lean practices 24. Explorative learning practices 25. Investment in training 26. Supplier development 27. Monitoring Suppliers Managers were asked to fill in the cells a number from -5 up to +5 that expresses whether two practices are in strong conflict, or are strongly synergetic. Characteristics Strongly synergetic (+5), indiffernt effects (0), strongly conflicting (-5) 2. Outsourcing what is easily imitated 3. High level of collaborative relationship 4. Arms length relationship 5. Long-term relationship 6. Formal partnership 7. Subcontracting whole systems and sections 8. Flexibility of operations 9. Risk-sharing 10. Sharing knowledge 11. Offsets as part of sales contract 12. Culture of continuous improvement 13. Ability to handle cultural differences 14. High level of dominance over supplier 15. High level of planning and control 16. Easy dialogue with supplier 17. IT system integration 18. High levels of integration in chain 19. Responsive to market change 20. Transparent organisation 21. TQM procedures 22. Just-in-time delivery 23. Lean practices 24. Explorative learning practices 25. Investment in training 26. Supplier development 27. Monitoring suppliers 1. Outsourcing competitive advantage 2. Outsourcing what is easily imitated -5 3 -5 4 4 1 4 5 5 -5 3 3 -5 4 4 4 0 2 0 4 3 4 -4 3 -3 -3 3. High level of collaborative relationship -4 4 -5 -4 2 0 -4 5 5 -3 -2 5 -4 -3 0 -4 0 0 2 3 -4 -3 -3 5 0 4. Arms length relationship -5 5 0 0 3 4 5 -3 3 4 -5 0 5 4 3 5 2 0 2 4 5 1 3 -4 5. Long-term relationship -5 -4 -4 0 -5 -3 4 -2 -3 4 0 -3 -5 -4 -3 0 3 -3 0 -4 0 -4 4 6. Formal partnership 4 4 3 4 4 0 4 3 -4 -3 4 4 5 3 2 4 5 5 4 4 0 -3 7. Subcontracting whole systems and sections 5 4 5 4 -4 4 3 -4 -4 4 4 4 4 2 3 5 5 4 3 -3 -4 8. Flexibility of operations 5 5 5 -4 4 4 -5 4 5 5 5 4 0 4 4 4 -3 4 -5 -2 9. Risk-sharing 4 2 3 4 3 -3 -3 4 -3 3 5 0 2 3 4 4 2 3 1 10. Sharing knowledge 5 -3 3 4 -4 3 3 4 4 3 0 4 2 3 4 4 -3 0 11. Offsets as part of sales contract 5 3 3 -3 2 5 4 0 0 4 1 4 4 -3 0 5 4 12. Culture of continuous improvement 1 5 2 3 0 -3 -3 -4 0 3 -2 -2 -3 4 4 4 13. Ability to handle cultural differences 0 -4 -3 4 -4 3 0 0 4 0 5 3 4 2 0 14. High level of dominance over supplier -5 -4 5 -2 3 0 0 -3 0 -3 2 0 4 -1 15. High level of planning and control 5 -4 -3 -4 0 4 -3 -2 -4 -4 0 -4 4 16. Easy dialogue with supplier 0 4 2 -3 3 -3 -3 -4 -3 0 -4 4 17. IT system intergration 3 4 4 0 4 3 5 4 0 5 1 18. High levels of integration in chain 4 -1 0 0 4 0 0 0 2 4 19. Responsive to market change 4 0 4 3 4 3 0 4 -3 20. Transparent organisation 1 2 1 3 4 0 3 -2 21. TQM procedures 0 0 0 0 0 3 3 22. Just-in-time delivery 4 5 4 4 3 -3 23. Lean practices 5 -1 4 4 -1 24. Explorative learning practices 5 4 4 -1 25. Investment in training 4 4 -1 26. Supplier development 5 0 2 Figure (9). A typical response for the Pair Interaction matrix. In essence the first part of the questionnaire filled in a 27x27 matrix expressing the supposed synergy or conflict between each pair of practices. The second part of the questionnaire concerned the emergent properties that they produce, which affects the competitive performance of the supply chains. These were the effects on quality of production, the costs, the ability to deliver reliably, the technological and innovative level and the ability to bring vision and originality to the project. These performance factors clearly constitute the “selection criteria” of the product likely to come from a particular supply chain. The pair interactions constitute the internal synergies and conflicts that affect the trade-offs involved in using particular practices. Our aim here is to provide a general method to help choose the set of inter-firm practices that will lead to the desired mix of performance qualities. The 27 possible practices for supply chain development were rated in the second questionnaire according to their expected capacity to perform well in terms of Quality, Cost efficiency, reliability, innovativeness and vision. In fact we obtained results from three airframe makers, an engine maker, a subassembly manufacturer. These have been brought together in an average outcome to reflect the general views of the sector concerning the expected utility of thes different practices. This means that, on average, managers looking for quality as the overriding quality of their output would pick practices: 7, 10, 12, 21 and 26. If Cost Efficiency is the dominant consideration then they would pick: 7, 12, 21 and 26. For Delivery Reliability: 7, 8, 12, 15, 18 and 22. For innovation and technology the practices would be: 1, 3, 7, 9 and 10, while for Vision there is a weaker response, and only practices 3, 9 and 10 are chosen. Characteristics Rate of characteristic to successfactor criteria High (9), None ()) 1. Outsourcing competitive advantage 2. Outsourcing what is easily imitated 3. High level of collaborative relationship 4. Arms length relationships 5. Long-term relationship 6. Formal partnership 7. Subcontracting whole systems and sections 8. Flexibility of operations 9. Risk-sharing 10. Sharing knowledge 11. Offsets as part of sales contract 12. Culture of continuous improvement 13. Ability to handle cutural differences 14. High level of dominance over supplier 15. High level of planning and control 16. Easy dialogue with supplier 17. IT system integration 18. High levels of integration of chain 19. Responsive to market change 20. Transparent organisation 21. TQM procedures 22. Just-in-time delivery 23. Lean practice 24. Explorative learning practices 25. Investment in training 26. Supplier development 27. Monitoring supplier Success criteria factors Product Cost Delivery Techn./ Vision for quality efficiency precision innovation the future 6.8 6.6 5 7.6 6.2 4.4 6.6 6 0.8 0.4 5.4 5 4.2 7 6.4 1 1.6 0.8 2 0.2 6 5.4 6.2 6.6 5.4 6.8 3.2 5.4 5.4 4.4 7.6 7.6 7 7.6 4.6 4.2 6.6 7 3.8 3.4 5 4.8 2.6 7.4 6.4 7.2 6.2 5.4 8 5.8 3.2 1.6 2.4 2 2.6 8.2 7.8 7.8 6.4 4.4 3.6 3 3.6 5.6 4.8 4.6 5 5 1 1.2 6 3.6 7.4 1.4 1.4 2.6 2.6 2.4 4.6 5.6 1.4 3.8 5.4 3.8 4.4 6.8 5.4 7 3.2 4.6 5.4 6 6.8 5.6 3.4 2.2 3 3.6 2.6 2.2 8.4 6.8 6.4 3.2 3.4 4.2 4.2 8.2 3 2.8 6.4 6.6 6.8 5 4.2 6 3.6 3.4 5.8 4.8 6.6 5.8 4.4 4.4 5.2 7 6.8 6.8 3.4 4 5.8 4.6 6.2 1 1.2 Figure (10). The average ratings of the different practices in terms of expected contribution to different dimensions of performance. This gives us a first estimation of how practices can be chosen in order to achieve a desired supply chain performance. Clearly, for sustainable behaviour of the firm, however, we may want to have a cost efficient “cash cow” element running a mature product production but also have a “design team” part that has the visionary and innovative practices that will be needed to define a future “cash cow”. Therefore one should envisage aerospace relationships to encompass both lean production elements and also visionary, design relationships that are used to define new platforms and products. 5.3 Modelling the Evolution of Supply Chains The important point about the evolution of systems is that they concern both the elements inside a system, that constitute its identity, and also the external environment in which they are attempting to perform and the requirements that are perceived for successful performance. In choosing which practices to use to manage a supply chain therefore we need to represent both the internal interactions of the supply chain and also the competitive environment in which it is trying to perform. Therefore it needs to consider the efficiency of its internal practices and their alignment with the external requirements imposed by the customer, market place, desired performance. We can represent the desired, or required dimension of performance by using a weighted sum of the five types of performance. We can, quite generally, represent the expected actual performance of a particular bundle of practices as the result of a matrix multiplication of the internal interactions between them, with the weighted sum of their expected, individual performances. So, for example the performance requirement might be for maximum emphasis on innovation and new technology. In that case a single column of performance can be obtained by multiplying the five columns of figure 10 by the weights: 0, 0, 0, 1, 0. In that case the single column will reflect the desire for innovation and the current unimportance of other dimensions. However, as we have stated, in order to calculate the “real” performance, or at any rate whether a new practice would take-off if it were launched, we need to multiply this single column of expected individual performance by the internal terms of interaction between practices within the organization or supply chain. This will then produce a column of figures which will be the real contribution of a practice, taking into account the synergy or conflict with other practices that are present. 1 on the diagonal 27x27 matrix 1 1 1 1 1 Characteristics Strongly synergetic (+5), indiffernt effects (0), strongly conflicting (-5) 2. Outsourcing what is easily imitated 3. High level of collaborative relationship 4. Arms length relationship 5. Long-term relationship 6. Formal partnership 7. Subcontracting whole systems and sections 8. Flexibility of operations 9. Risk-sharing 10. Sharing knowledge 11. Offsets as part of sales contract 12. Culture of continuous improvement 13. Ability to handle cultural differences 14. High level of dominance over supplier 15. High level of planning and control 16. Easy dialogue with supplier 17. IT system integration 18. High levels of integration in chain 19. Responsive to market change 20. Transparent organisation 21. TQM procedures 22. Just-in-time delivery 23. Lean practices 24. Explorative learning practices 25. Investment in training 26. Supplier development 27. Monitoring suppliers 1 1 1. Outsourcing competitive advantage 2. Outsourcing what is easily imitated -5 3 -5 4 4 1 4 5 5 -5 3 3 -5 4 4 4 0 2 0 4 3 4 -4 3 -3 -3 1 3. High level of collaborative relationship -4 4 -5 -4 2 0 -4 5 5 -3 -2 5 -4 -3 0 -4 0 0 2 3 -4 -3 -3 5 0 1 4. Arms length relationship -5 5 0 0 3 4 5 -3 3 4 -5 0 5 4 3 5 2 0 2 4 5 1 3 -4 5. Long-term relationship -5 -4 -4 0 -5 -3 4 -2 -3 4 0 -3 -5 -4 -3 0 3 -3 0 -4 0 -4 4 1 6. Formal partnership 4 4 3 4 4 0 4 3 -4 -3 4 4 5 3 2 4 5 5 4 4 0 -3 1 8. Flexibility of operations 5 5 5 -4 4 4 -5 4 5 5 5 4 0 4 4 4 -3 4 -5 -2 9. Risk-sharing 4 2 3 4 3 -3 -3 4 -3 3 5 0 2 3 4 4 2 3 1 1 10. Sharing knowledge 5 -3 3 4 -4 3 3 4 4 3 0 4 2 3 4 4 -3 0 1 11. Offsets as part of sales contract 5 3 3 -3 2 5 4 0 0 4 1 4 4 -3 0 5 4 12. Culture of continuous improvement 1 5 2 3 0 -3 -3 -4 0 3 -2 -2 -3 4 4 4 x 1 7. Subcontracting whole systems and sections 5 4 5 4 -4 4 3 -4 -4 4 4 4 4 2 3 5 5 4 3 -3 -4 1 13. Ability to handle cultural differences 0 -4 -3 4 -4 3 0 0 4 0 5 3 4 2 0 1 14. High level of dominance over supplier -5 -4 5 -2 3 0 0 -3 0 -3 2 0 4 -1 1 15. High level of planning and control 5 -4 -3 -4 0 4 -3 -2 -4 -4 0 -4 4 16. Easy dialogue with supplier 0 4 2 -3 3 -3 -3 -4 -3 0 -4 4 1 17. IT system intergration 3 4 4 0 4 3 5 4 0 5 1 1 18. High levels of integration in chain 4 -1 0 0 4 0 0 0 2 4 19. Responsive to market change 4 0 4 3 4 3 0 4 -3 1 20. Transparent organisation 1 2 1 3 4 0 3 -2 1 21. TQM procedures 0 0 0 0 0 3 3 1 22. Just-in-time delivery 4 5 4 4 3 -3 23. Lean practices 5 -1 4 4 -1 24. Explorative learning practices 5 4 4 -1 25. Investment in training 4 4 -1 26. Supplier development 5 0 2 1 1 1 1 1 5 0 0 0 0 5 7 0 0 2 0 9 0 0 4 0 0 5 0 0 9 0 4 0 2 4 5 = Actual 1.057664 0 0 0 0 0.805564 1.208345 0 0 0 0 1.463344 0 0 0.767893 0 0 0.834541 0 0 1.553173 0 0.736019 0 0 0.718632 0.854825 Real Performance Per Practice Figure (11). The real performance of the supply chain is given by multiplying the expected performance by the 27x27 matrix with unity down the diagonal. This simple mathematical formula allows us to examine how different bundles of practices can be expected to perform in the different dimensions that may be desired: Quality, Cost, Reliability, Innovation and Vision. If different practices were entirely independent of each other then the off-diagonal elements of the pair matrix would be zero. In that case the matrix multiplication, with unity, 1, running down the diagonal would simply give the answer that the expected and real performances would be the same. But, if there are interactions of synergy or of conflict, then these will modify the result and the performance generated by each practice will be different from its value when considered in isolation. From this simple framework we can therefore examine which practices will “take-off” if we launch them successively, allowing them to grow if the required performance is increased, but rejecting them if they do not increase performance. In fact, since to organize any practice there will be some effort involved, we can say that there will be a cost per practice that will stop us adding practices that do not enhance performance by more than the cost of organizing the practice. We have therefore developed an “evolutionary computing” program that runs different random sequences of successive launching of practices under different, conditions of performance selection. 6. Results of the Evolutionary Learning Model Our evolutionary based computer model captures the idea that initially the agents in the model have no knowledge of the effectiveness of different practices, nor whether they are in conflict or synergy with others. The simulations therefore proceed by an agent trying some, essentially random sequence of innovation by attempting the introduction of a new practice. Each practice is supposed to have a cost in implementation and so following the introduction of a practice if the performance does not increase more than the cost of its introduction then it is considered a failure and is withdrawn. In this way, agents attempt to introduce successive practices in random sequences, and some, by luck, increase the performance of the supply chain much faster than others. The performance is measured by a weighted sum of the five criteria mentioned above. If we choose for example .96, .1, .1, .1, .1 then the Quality measure will be the performance optimized, while if it is .1, .1, .96, .1, .1 then it will be the reliability of delivery that will be optimized. The model proceeds by calculating the performance (in terms of the weighted criteria) for the bundle of practices initially present and adds a random practice. If the gain in performance is less than the cost of the implementation, then the practice is removed again. In this way, overall performance increases in steps given by the matrices of performance, depending on the particular sequence that occurs. Our simulation can be used to explore the impact of the pair matrix interactions. We can run the average matrices and see how the average view of managers leads to a choice of practices. We can compare the results when the off-diagonal elements of the pair matrix are all set to zero, and when they are small – the values are divided by 50 to approximate an “order of magnitude” lower than the diagonal terms.. The dialogue between the process “inside” an organization or supply chain and the demands placed on it by the outside world from which it must wrest a living constitute a complex, evolutionary system. Firms are forced to proceed by “trial and error” since the collective interactions are difficult to anticipate, and therefore luck leads to different firms learning at different rates which bundles of practice lead to what performance, as is shown in figure (12). The cost per practice is set at 6 which corresponds to the positive rating of the individual practices’ performance. This sets the minimum “improvement” that a new practice must bring if it is to be retained. In reality this would mean that some would be eliminated on these grounds and the faster learners would succeed. This implies that it is important to try out practices sufficiently fast, and also that luck will still play a role in who is successful. Different Sequences Quality Optimized Performance 80 70 Series1 60 Series2 50 Series3 40 Series4 30 Series5 20 Series6 10 Series7 Series8 0 1 9 17 25 33 41 49 57 65 73 81 89 97 Series9 Time Figure (12). Different model runs with different random seeds lead to different rates of learning about the bundle of practices that respond to the performance required. Repeated runs with different random number seeds have ensured that the system results are robust. High performance is obtained by only including practices that provide the right kind of performance and also are synergetic. The program can be run with weights corresponding to a performance of high quality production. We find figure (13). Practices Maximising Quality 12 10 8 6 Cross 0 4 Cross 1 2 0 1 3 5 7 9 11 13 15 17 19 21 23 25 27 Practices Figure (13). Practices that lead to high quality production. The program can now be run with the weights now chosen to maximize successively the different dimensions of performance. The practices retained for cost efficiency, reliable delivery, innovation and vision are shown in figure (14). Cost Maximising individual and interacting practices Practices for Reliability 12 12 10 10 8 8 Cross 0 6 Independent 6 Interacting Cross 1 4 4 2 2 0 0 1 1 3 5 7 9 11 13 15 17 19 21 23 25 3 5 7 9 27 11 13 15 17 19 21 23 25 27 Practices Practices Vision Practices Innovation Practices 16 16 14 14 12 12 10 10 Independent 8 Interacting Independent 8 6 6 4 4 2 2 Interacting 0 0 1 3 5 7 9 11 13 15 17 19 21 23 25 27 Practices 1 3 5 7 9 11 13 15 17 19 21 23 25 27 Practices Figure (14). The different practices retained for the different dimensions of performance. The model allows us to also calculate the performance in all five dimensions that would be associated with high performance in any particular one of them. This is important because there will be lower limits of acceptability on any particular mix. 6.1 Patterns of Synergy and Conflict If we consider the practices selected for maximum quality and look at them on the pair matrix then we see that the practices that have been retained have a net synergy of 7, and that no practices have been retained that are in conflict. The patterns for the practices retained to maximize all five dimensions are shown in figure (15). Again there are no conflicting practices and the overall synergy is 9.02. Synergy Conflict for Quality All positive - Net +ve 7 Synergy Conflict for Cost All positive - Net +ve 9.02 S27 S27 S25 S25 S23 S23 S21 0.09-0.1 S21 0.09-0.1 S19 0.08-0.09 S19 0.08-0.09 0.07-0.08 S17 0.06-0.07 S15 0.05-0.06 S13 S17 S15 S13 0.04-0.05 S11 0.03-0.04 S9 0.02-0.03 S7 0.01-0.02 27 25 23 21 19 17 15 13 9 11 7 5 3 1 27 25 23 21 19 17 15 9 13 7 11 5 3 1 S1 S23 S21 0.09-0.1 S21 S19 0.08-0.09 S19 0.07-0.08 S15 0.05-0.06 S13 0.04-0.05 0.08-0.1 0.06-0.08 0.04-0.06 0.02-0.04 0-0.02 S11 0.03-0.04 S11 -0.02-0 S9 0.02-0.03 S9 -0.04--0.02 S7 0.01-0.02 S7 -0.06--0.04 0-0.01 S5 27 25 23 21 19 17 15 13 11 9 7 S1 5 S3 S1 3 S3 1 27 25 23 21 19 17 15 S17 0.06-0.07 S5 13 0-0.01 S1 S25 S13 9 0.01-0.02 S27 S15 11 0.02-0.03 S25 S17 7 0.03-0.04 S7 S27 S23 5 0.04-0.05 S9 Synergy Conflict for Innovation Some conflicting practices - Net synergy +ve 11.7 Synergy Conflict for Reliability All positive - Net +ve 5.82 3 0.05-0.06 S3 S3 1 0.06-0.07 S11 S5 0-0.01 S5 0.07-0.08 Synergy Conflict for Vision Some conflicting practices - Net synergy +ve 14.4 S27 S25 S23 S21 S19 0.08-0.1 0.06-0.08 S17 0.04-0.06 S15 0.02-0.04 S13 0-0.02 S11 S9 S7 -0.02-0 -0.04--0.02 -0.06--0.04 -0.08--0.06 S5 27 25 23 21 19 17 15 9 13 11 7 5 3 1 S3 S1 Figure (15). a)Quality, net synergy 7. b) Cost efficiency, net synergy 9.02. c) Reliability, net synergy 5.82. d) Innovation, has some conflicts but net synergy is 11.73. e) Vision has some conflicts but net synergy is 14.4. 6.2. The Increased performance arising from Synergy The model manages to select practices that perform much better than when the interactions between practice are not considered. In other words, the practices retained are on the whole synergetic. We can look at the patterns of synergy that have been selected. Quality Cost 60.00% 80.00% 50.00% 70.00% 60.00% 30.00% Quality Synergy Synergy 40.00% 20.00% 50.00% 40.00% Cost 30.00% 20.00% 10.00% 10.00% 0.00% 0.00% 1 3 5 7 1 9 11 13 15 17 19 21 23 25 27 3 5 7 Reliability 9 11 13 15 17 19 21 23 25 27 Innovation 60.00% 80.00% 50.00% 70.00% Synergy 30.00% Reliability 20.00% Synergy 60.00% 40.00% 50.00% 40.00% Innovation 30.00% 20.00% 10.00% 10.00% 0.00% 0.00% 1 3 5 7 1 9 11 13 15 17 19 21 23 25 27 3 5 7 9 11 13 15 17 19 21 23 25 27 Vision 90.00% 80.00% 70.00% Synergy 60.00% 50.00% Vision 40.00% 30.00% 20.00% 10.00% 0.00% 1 3 5 7 9 11 13 15 17 19 21 23 25 27 Figure (16).The increased performance for the five dimensions showing where the strong synergies are. This shows us how the synergy term is highly significant, up to 70%, even after reducing the pair interaction term by dividing by 50 to make it an order of magnitude smaller than the direct performance. Again very high levels of synergy are found, up to 75%, and these high levels explain why in some cases the performance that is obtained in trying to maximise quality, actually produces even higher levels of performance in innovative characteristics. The effects of the patterns of synergy and conflict are strong, and therefore the results coming from the retention of particular patterns are not necessarily obvious. Knowledge of the effects of interaction can therefore be of considerable advantage in creating a successful supply chain. Even if the pair interaction terms are considered to be 50 times smaller than the direct effects of a practice there are still synergy effects of up to 75%. This shows the importance of considering the systemic, collective effects of any organization or supply chain. 7. Discussion The method that we have developed is in fact a completely general approach to the issue of business and supply chain performance. It is based on the idea that a successful evolutionary step can only occur if an initial experimental initiative is amplified by the system in which it occurs (Allen, 1976). The initiative here is in terms of a “practice” – a particular technique, activity or action that is believed initially will enhance the collective performance of the system. The model allows us to examine how different practices will contribute to, or detract from, different possible dimensions of performance that the overall production system requires in order to succeed with its customers or in the market place. Essentially this method comes down to setting up a model that uses the “evolutionary criterion” of 1976 (Allen, 1976; Allen 1994a and b), and tries to launch a succession of practices under chosen selection criteria. When the interaction between practices is ignored then we simply see that if we set the costs at 6, for example, then the model simply selects and retains those practices that have a performance greater than 6 in their performance matrix. However, once the interactions are included then as we have seen the synergy and conflicts between practices can lead to up to 75% higher or lower than recorded in the non-interacting case. Because of this, the exact identity of the practices that are retained may change as some have greatly increased performance, while others suffer much decreased performance. Because the model selects for practices with combined high performance rather than the opposite, we find that the supply chain practices suggested by the model give rise to considerably enhanced performance. The overall view that emerges is that the collective an organization or supply chain may differ considerably from that of its component parts taken separately. In other words, the supply chain or organization forms a “system” which can respond to the particular demands of its selection environment through its collective interactions. Over time, it will be the ability of the supply chain to maintain different types of supply chain corresponding to different stages in the life-cycle of its products. From the discussions and models presented above we can derive some key points about organizational behaviour and its evolution. Organizational behaviour must be such as to allow organizational evolution, or the organization will fail. The rules that allow organizational evolution are: The presence of mechanisms that produce internal heterogeneity, which will involve freedom, ignorance and underlying error-making, exploratory processes Differential performance needs to be detected and evaluated with respect to their alignment with higher level goals. This will then provide the selection process that will amplify or suppress different elements of individual behaviour. The relative performance of the organization within the wider environment needs to be constantly reviewed and evaluated to see how the selection criteria are changing and how this may affect the capabilities and competences that the organization needs. At the level above the organization, the selection criteria will be changed by the changes occurring both in the organization considered and the others in the larger environment. This means that we have a multi-level dialogue going on between the changes occurring inside an organization and the changes occurring in the larger environment, the industry or sector, and this within the changing region, national and global economies. For successful organizations, as Chia and Tsoukas (2002) point out, aggregate descriptions will always be short term emergent properties of an evolving system. Successful management must behave as evolution does and make sure that mechanisms of exploration and experiment are present in the organization. Though they will not be profitable in the short term they are the only guarantee of survival into the longer term. In reality, the organizations that we observe and describe formally at any given moment are “structural attractors” (Allen Strathern and Baldwin, 2005), which, if they persist over time, will change qualitatively as successive organizational forms emerge. In hard science a new theory must be capable of being falsified, and therefore must produce testable predictions, which can lead to genuine cumulative knowledge. In complex systems however, clean predictions are no longer possible and the knowledge evolves under less severe selection criteria. In ecological and human systems emergent structural attractors can occur simply because their particular emergent capabilities/behaviours succeed in getting resources from the environment. Fashion, lifestyles, art, artefacts and communities of practice can emerge and survive providing that there is a clientele for them. They are not about being “true or false” but simply about whether there is a “market” for them. Living systems create a world of connected, co-evolved, multi-level structures which may be temporally selfconsistent, but will evolve and change over time. In a market place, we find that firms need to experiment with their strategy in order to find out how to improve profits in the moving constellation of other firms. Luck plays a role, but learning will be better than just hoping. Similarly in our study of automobile manufacturing, we can actually break down organizational behaviour into its “atomic” components of working practices, skills and techniques. Complexity tells us that as well as the “organization you see”, the set of practices, there must also be internal agents with the autonomy to decide to try out new practices, and to choose which they should be. This is really the role of management, although hopefully it uses information from throughout the organization. However, the main point is that although a particular bundle of practices is what is observable at any given time, a successful evolution will require the additional presence of agents that suggest new practices, discuss how to bring them in and implement them, and then who evaluate how they are performing. Organizational behaviour can be many things, but no organization will survive long if it is not capable of evolving and adapting over time. Complexity science provides the scientific framework in which we can understand how and why organizational behaviour can be evolutionary. 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