lOMoARcPSD|18932839 Economic Methodology Notes Economic Methodology (Universiteit van Amsterdam) Studocu is not sponsored or endorsed by any college or university Downloaded by Hannah Ho (hannah900829@gmail.com) lOMoARcPSD|18932839 ECONOMIC METHODOLOGY Notes from the lectures Explanation and prediction follows the D-N model. Problems of econometrics: no laboratories, lots of variables, complexity is unavoidable. Lecture 1 The received view - “Purity and Clarity are aimed at, dark distances and unfathomable depths declined. There are no ‘depths’ in science. There is surface everywhere” So, stick to the facts! Tinbergen’s method and Keynes’ criticism –Keynes believes that Tinbergen does not test but measures. His measuring would only be meaningful if all causalities were known. Empirically verifiable (synthetic a posteriori): ascertaining truth by observation. Logically verifiable (analytic): ascertaining truth by logical analysis. Synthethic a priori swentences are not meaningful. Haavelmo’s probability approach –“whether or not we might hope to find elements of invariance in economic life, upon which to establish permanent laws”. This is in line with confirmationism. Distinguishing context of discovery from context of justification. Operationalization & Deductive Explanation emphasized. Nomological Confirmationism –probability instead of certainty. Probabilistic explanation with a degree of confirmation. Lecture 2 Positivism in econometrics: Mathematics as analytical foundation, model structure. Statistics as observational foundation, model test. Operationalization and data choice guarantee verifiability. Measurement-without-theory debate: Koopmans (Cowles Commission) caricatures NBER –Theory is based on observation. Koopmans believes that theory tells us what variables and relations are probably important. So: theory is input and output of observation. Anti-realisticness: Truly important and significant hypotheses will be found to have “assumptions” that are wildly inaccurate descriptive representations of reality, and, in general, the more significant the theory, the more unrealistic the assumptions (in this sense). Model assumptions: A negligibility assumption means that a factor that could be expected to affect the phenomenon under investigation actually has no detectable effect. Downloaded by Hannah Ho (hannah900829@gmail.com) A domain assumption means that an expected factor is absent, and so is used to specify the domain of applicability of the theory concerned. A heuristic assumption is made if a factor is considered to be negligible, in order to simplify the ‘logical’ development of the theory. Friedman simplifies for parts and tests by predictions. Some positivistic aspects: Friedman accepts the D-N model, but distances himself from testing assumptions and premisses (impossible because of the problem of induction). Relevance of observation is in testing predictions and determining domains. Instrumentalistic, but not in a Schlickian way. Descriptivism - Scientists never “explain” any behavior, by theory or by any other hook. Every description that is superseded by a “deeper explanation” turns out upon careful examination to have been replaced by still another description, albeit possibly a more useful description that covers and illuminates a wider area. No laws –by demanding that both P and Q are both verifiable and actually verified, laws become impossible. Descriptivism is the ultimate consequence of LP demarcation. No laws, D-N explanations or predictions, but only descriptions. 1 lOMoARcPSD|18932839 Lecture 3 Popper’s Falsificationism –scientific knowledge is fallible, scientists should aim for refutations rather than verifications. Testing theories Popper-style: 1. Logical consistency (minimum requirement) 2. Falsifiability (demarcation criterion) 3. Empirical consequences (predictions) 4. Empirical content (more potential falsifiers if theories say more precise things about more phenomena) Growth on Knowledge is not attained by building certainties on certainties but by repairing mistakes. Logical positivism –the more probable a theory is, the more reason to accept it. Popper –the more improbable a theory is, the more reason to accept it. Friedman –the more significant a theory is, the more unrealistic the assumptions. Social laws? Hard to find since there are no experiments and many factors to handle simultaneously. Reflexivity principle makes it so that if laws are found, our behavior changes, voiding the law. Social and historical inescapability such as in Hegel’s and Marx’s historicism does not exist. Three ways to immunize stratagems a posteriori; reclassifying, adjusting underlying theories, and changing the domain. A general ceteris paribus clause as an a priori immunizing stratagem will render all statements irrefutable. In relation to the Duhem-Quine thesis, if we do not know what is at fault, we can actually benefit from immunizing stratagems to improve the theory. Lakatos believe immunizing stratagems are theory improvements in a progressive research program.. Rationality – choosing the most progressive research program, both theoretically and empirically. Avoiding degenerating programs. Lecture 5 Lecture 4 Theory ladennes: With Popper, theory usually precedes observation. It offers potential falsifiers and tells us what to look for. Observations are carried out on the basis of theory. Duhem - Quine thesis suggests that when a theory is falsified we do not know for sure what exactly is falsified; the whole theory, the measurement, the measuring instrument, the classification, the domain? Kuhn & Lakatos Disciplinary matrix – symbolic generalization, metaphysics, paradigms, values. Concept of Gestalt, Gestalt incommensurability is highlighted. Switch and Sociology of Scientific Knowledge – truth is a social construct. Adequate descriptions of behavior and its causes lead to a better understanding of what counts as truth. Kuhn and SSK: Gestalt through training within a scientific community. The ‘naturalistic’ turn: There is no growth of knowledge but breaks. Revolution through a Gestalt Switch. Lakatos brings together Kuhn and Popper’s ideas to create what he calls a sophisticated falsificationism. He believes that research programs consist of a hard core and a protective belt (negative & positive heuristic). Downloaded by Hannah Ho (hannah900829@gmail.com) Traditional philosophy of science focuses on the rules of proper scientific method and such things as logic, truth, role of assumptions, use of evidence, etc. that influence acceptance/rejection of theories. “What is true or false are theories of science.” 2 lOMoARcPSD|18932839 SSK focuses on the behavior of scientists in terms of their motives and interests as members of communities of scientists to understand why they accept/reject theories. “What is true or false are theories of scientists’ behavior.” Economics of Science (ES): study of economic factors that influence the conditions under which science is practiced, but which do not influence the content of science, called the old economics of science. epistemically efficient way possible. Knowledge is promoted by cognitive diversity and through competition. “An industrial organization of cognitive labor.” The Edinburgh Strong Program Starting point is a naturalistic approach to scientific knowledge; scientists are to be investigated just as we would any natural phenomena. Four methodological principles: causality, impartiality, symmetry, and reflexivity. Economics of Scientific Knowledge (ESK): the application of economic models to the determination of scientists’ beliefs, called the new economics of science. Robert Merton – focus is the social or cultural preconditions for empirical science. Four defining characteristic; universalism, organized skepticism, disinterestedness, and communalism. Lecture 6 Laboratory studies approach – daily practices of scientists ‘micro-sociological’. An anthropological approach. Callon’s actor network theory. Relativism, realism, and values: Relativism: truth and knowledge are not objective but relative to historical and social context – the interest thesis. Reflexivity? Objective relative to SSK? Realism vs socially constructed knowledge. Values: a descriptive naturalistic approach with value-neutrality or one guided by scientists’ values (methodological values & value-laden concepts). Economics of Scientific Knowledge – a competing perspective, science and scientists’ behavior as understood by economics rather than sociology. ES – Basic scientific research is a public good & government should subsidize basic scientific research. ESK – David & Dasgupta model, a system of open science and reputation maximizing scientists will allow scientific research to be publicly available rapidly. Openness is incentive-compatible with a reward system based on self-interest (e.g., Nobel Prize in Economics). The lock-in problem leads to path dependency. Scientific community dependent on breakthroughs. Kitcher’s social epistemology – science is organized socially so scientific standards are social ones. The goal is to increase the ratio of reliable beliefs to total beliefs in the population. This is possible by arranging the social institutions in most Downloaded by Hannah Ho (hannah900829@gmail.com) A non-science based view of science. Economics as not science, or social science, but humanities. Classical rhetoric as a humanities rather than scientific field. The traditional concern are methods of argument and communication. The modern focus are forms of discourse. Connections to SSK: emphasis on the practices of scientists and their tools. Logos, Pathos, Ethos Positivism according to McCloskey: Prediction (and control) is the goal of science Only the observable implications (or predictions) of a theory are significant for its truth. Observability entails objective, reproducible experiments. If an experimental implication of a theory proves false is the theory proved false. Objectivity is to be treasured; subjective ‘observation’- introspection is not scientific knowledge. Kelvin’s Dictum: “When you cannot express it in numbers, your knowledge is of a meagre and 3 lOMoARcPSD|18932839 unsatisfactory kind.’’ Introspection, metaphysical belief, aesthetic, and the like may well figure in the discovery of an hypothesis but cannot contribute to its justification. It is the business of methodology to demarcate scientific reasoning from non-scientific reasoning, and the positive from the normative. A scientific explanation of an event brings the event under a covering law. Scientists, for instance economic scientists, have nothing to say as scientists about values, whether of morality or art. Hume’s Fork McCloskey & the rhetoric approach: Attention to how economists actually seek to persuade one another – use of mathematics, proofs, significance tests, etc. as means of giving authority to conclusions. Critique of positivism. Economics does not develop through use of simple rules but through communication between economists. Analogy persuades by interpreting economic statements in terms of another more intuitive framework. (e.g. , interactive competition seen as ‘game theory’ (or markets as crossing lines). Metaphor persuades by importing non-economic concepts into economics (e.g., smith’s ‘invisible hand’ and Becker’s ‘children as durable goods’). Economists as story-tellers. Methodology with a small “m”, not a large “M”. McCloskey: knowledge is not a structure with ‘foundations’. Evidence is subject to interpretation and theory-laden. Language meanings are plural and not singular (e.g., competitive market means different things in different settings - discourse). Economics operates like a ‘conversation’; often at long distance and through publications. The ‘rules’ are the rules of civil conversation. Klamer and Colander – expand McCloskey’s approach Postmodernism influenced the rhetoric approach. Critiques of economics’ main concepts: - The interview method as a case study approach. Klamer’s with the New Classical Economists – enlarging the conversation. - Klamer and Colander’s interviews with students; economics education as a highly structured type of communication. The role of textbooks: standardized content, elimination of controversy, exemplars, elimination of attention to the historical development of ideas or the presentation of history in the form of fables. Postmodernism – a critique of humanism and traditional views of science dating from the Enlightenment. Modernism: There is a single scientific method. Knowledge has foundations. Downloaded by Hannah Ho (hannah900829@gmail.com) Meaning can ultimately be determined with certainty. History possesses a pattern, such as progress The self is a coherent entity. Things and beings have essential natures Master narratives are possible. Causal determination has a privileged role in explanation. Things can be represented in language. Equilibrium as capturing the essential nature of an economic system vs multiple/unstable equilibria. Causal determination, change in economic systems can be random and arbitrary. Rationality, the single self is a fiction. Rejects the goal of demarcating science from pseudo-science, there are multiple kinds of narratives about knowledge. Pluralism Epistemological pluralism: there are multiple kinds and forms of legitimate knowledge. Rejection of relativism; no standards for truth vs multiple standards (e.g., chemistry vs physics) Rejection of reductionism; there are microfoundations for macroeconomics and macrofoundations for microeconomics. 4 lOMoARcPSD|18932839 Methodological pluralism; no meta-criteria for knowledge. Methodological policy recommendation, promote diversity in science. Lecture 7 Standard view: economics is value-free. Value judgements in economics in 4 ways: in methodological value judgements, in the value-ladenness of economic concepts and explanations, in supporting particular ethical views, in representing the ethical values and moral norms people observe. Describing human behavior as a human, practically impossible to be value-free. Like ‘’rationality’’, concepts that we use convey a hidden judgement. Combining methodological judgements with valueladenness of concepts often leads to supporting certain ethical values. Methodological value judgements – 3 types: Choice of subject matter Methods of investigation Standards of validity Evaluative judgements economists make with respect to the methods they choose to employ – not about moral right/wrong. Hume’s guillotine, aka Is-Ought problem, fact value distinction in language. Moore’s naturalistic fallacy – saying that something is broken is not asking to get it fixed. Myrdal’s view is that economics is value-laden. ‘’Is’’ statements often conceal hidden ‘’ought’’ statements. Technical language vs ordinary meanings of words matter. Concept of Gestalt surfaces again. Weakly value-laden vs strongly value-laden. Rational choice makes a strong value judgement by favoring only one idea of good over all others. Logical positivism and ordinalist utility theory: Cardinal utility (can be compared among people) vs ordinal utility (cannot be compared with another person’s ranking). Rejecting cardinal utility is a Logical Positivist move. LPs can only comment on ordinal utility. Rational choice requires the Pareto principle. It focuses on unequivocal preference satisfaction. No cost-benefit analysis aimed at maximizing net gains across winners and losers. In reality, policymakers not only use cost-benefit analysis but employ other ethical principles, such as the rights people have. Historical roots of economics’ normative commitments: Feudalism – interest and profits are sins (usury) & capitalism would lead to chaos. Early economists (mainly Smith) set out to prove this sentiment false: ‘’By pursuing his own interest, Downloaded by Hannah Ho (hannah900829@gmail.com) the merchant frequently promotes that of the society more effectually than when he really intends to promote it.’’ Since then, economists have been obsessed with proving the invisible hand principle. Economics as a useful subject: A thoroughly value-free science would tell us nothing about our concerns, interests, and values. There’s a difference between abusing science with politics and ideology and using science according to shared social values. The important thing is to be clear about the value judgements employed in any theory. Neutral science: Political Decision: choice of ends 5 Neutral Science: development of means Political Decision: choice of means Realistically this is not correct. Science and Society are interactive rather than a strict and clean cut process. Naturalistic legitimation: Science is seen as the ideal type of human activity; its achievements ‘naturally’ legitimate it. Sometimes science ‘de-legitimate’ itself and sometimes this extends to the theories (nuclear science, the 2008 economic crisis, etc.) lOMoARcPSD|18932839 Overall notes Logical positivism – scientific knowledge has to be traceable to: Observation (requires operationalization of theoretical terms by correspondence rules) – synthetic a posteriori statements. Formal logic (analytical statements) Explanation and prediction through the DeductiveNomological model. Positivism in econometrics: Mathematics as analytical foundation (model structure) Statistics as observational foundation (model test). Operationalization and data choice guarantee verifiability. Explanation and prediction follows the D-N model. Keynes: incomplete models do not measure well. Haavelmo: probabilities and the problem of passive observation. Koopmans: measurement presupposes theory. Friedman: divide in small domains, simplify the model and test the accuracy of predictions. Samuelson: only describe. Humean problem of induction – laws are problematic. Popper’s solution: … until proven otherwise. Testing theories Popper-style: 5. Logical consistency (minimum requirement) 6. Falsifiability (demarcation criterion) 7. Empirical consequences (predictions) 8. Empirical content (more potential falsifiers if theories say more precise things about more phenomena) Kuhn: a sociological turn Normal science takes place in a scientific community with specific norms and values regarding the research domain, research methods and criteria for good science. This is visible in disciplinary matrix, affecting Gestalt and perpetuated by the invisible college. This determines what puzzles scientists are willing and able to solve. When are statements true? Logical Positivism: Something is true if it can be verified by observation. Popper: Something is true if counterexamples can disprove it. Kuhn: Something is true if it conforms to social conventions regarding truth. Two reactions - Lakatos: Some conventions work better (have more empirical content) than others - Truth is context dependent (SSK and ESK) SSK: quality criteria are historically and socially specific, but there are criteria for SSK research itself. ES: four scientific values (criteria) – basic research is a public good and needs to be subsidized. ESK (David & Dasgupta): Open science and reputation maximizing leads to communalism, but the type of knowledge produced is affected. Is Downloaded by Hannah Ho (hannah900829@gmail.com) focused on breakthrough knowledge. No need to subsidize scientists. ESK (Kitcher): Cognitive diversity increases amount of reliable knowledge. Criterion is if people consider it reliable. Rhetoric, Postmodernism, and Pluralism McCloskey: convincing stories are better as long as conversations are civil (whatever is mainstream is apparently the most convincing/best). Postmodernism: quality criteria are impossible or even dangerous, emphasize on criticism. Methodological pluralism: multiple criteria exist (epistemological pluralism), and this is desirable/ must be actively promoted. Criteria for Criteria for Criteria for researching scientist’ organizing No criteria scientists behavior science SSK: Merton (ES): causality, Merton (ES): universalism, impartiality, organized postmodernism impartiality, symmetry, skepticism communalism reflexivity McCloskey: David & convince others Dasgupta in civil (ESK): open conversations science Methodological Kitcher (ESK): pluralism: cognitive respect other diversity approaches Methodological pluralism: epistemological diversity 6 lOMoARcPSD|18932839 Notes from previous exams - Humean Problem of Induction & the Logical Positivists: Logical Positivists believe that science must be based on observation and logic, while explanation is done by subsuming phenomena under laws (given initial conditions). The Humean problem of induction implies that laws cannot be found using only observations, so strictly speaking explanation is not a scientific activity. - Tinbergen applying the Logical Positivist demarcation criterion to econometrics. Tinbergen built mathematical models as a logical foundation and verified these using statistics as the empirical foundation. - Popper is opposed to immunizing stratagems (used on a falsified statement to reinterpret it after the fact as scientific) because he believes that they would allow scientist to invent excuses to uphold flawed theories indefinitely, preventing them from searching for better ones. Friedman’s demarcation criterion in relation to Deductive-Nomological model of explanation. The symmetry thesis that follows from the DN model of explanation implies that a law plus initial conditions allow predictions. As long as these predictions are correct, the underlying laws are scientific to Friedman. - Popper and empirical content of a theory. According to Popper, it is easier to disprove a lawlike statement, the more specific inferences it makes about more phenomena. So as specific the theory is and the domain of applicability increase, statements have more empirical content. reflexivity means that the Edinburgh school intends to stay critical towards their own world view and inherent biases as well. As the first acts as a barrier against biases and the second ensures that biases are recognized when they arise, these principles stimulate objectivity. Kuhn prefers normal scientists to puzzle solvers. What do the scientists have in common with the puzzle solvers? Using his four scientific values (universalism, organized skepticism, distinterestedness, communalism) Merton argued that fundamental research needs to be subsidized. Explain. While making a puzzle you make the assumption that a solution exists, that it can be found using a standard codified approach and that if you fail, it is you that failed and not the puzzle. Normal scientists tackle scientific problems this way too. Scientists that disinterestedly offer universally valid theories to a wide and critical audience as quickly as possible allow everyone to benefit from their discoveries, except themselves. To compensate them, they must be subsidized. - - Popper and immunizing stratagems. The Edinburgh School Strong Program within SSK aimed to describe scientific communities as objectively as possible. Barnes and Bloor formulated four methodological principles to serve that goal. Name and explain them. Causality: the causal conditions of scientists’ beliefs. Impartiality: beliefs. true/false and rational/irrational - - Methodological pluralism in response to the relativistic and anti-realistic implications of postmodernism. According to postmodernists, truth is relative to social structures and there is no objective reality to check them against. Methodological pluralists admit this may be true, but hold that by having multiple perspectives at our disposal, we can still make an informed decision as to when to use which perspective. Symmetry: the causes of true and false beliefs. Reflexivity: the explanations of SSK itself. Impartiality involves not passing judgment on the beliefs of scientists that are subject of study, while Downloaded by Hannah Ho (hannah900829@gmail.com) A truly value-free economic science is unlikely to be useful. Explain why. 7 lOMoARcPSD|18932839 People are ethical creatures. An economic science that does not value this aspect into account can be said not to be about people at all. If the price of coffee rises, tea consumption rises The price of coffee rises more tea is consumed - Above is an example to the DN model of explanation. Is this a scientific explanation according to Logical Positivist instrumentalism? Samuelson’s descriptivism? Popper’s falsificationism? Acc. to LP instrumentalism, the first sentence could be considered a law in line with instrumentalism since it is useful, overruling the Humean problem of induction. Explanation can be defended as scientific. Acc. to Samuelson laws do not exist because of Humean problem of induction. Samuelson would suggest that an explanation does not exist because there isn’t a law. Scientists can only provide merely useful descriptions. So, if the reasoning above is an adequate description, it is scientific. Acc. to Popper falsificationism, statements are scientific when they can be disproven by at least one counterexample. This applies to all statements in this explanation, so it is scientific. - Kuhn on incommensurability and why it renders constant scientific growth impossible. According to Kuhn, paradigm shifts take place. When they do, old and new scientist look at the world in different ways and consider different puzzles relevant. Therefore, paradigm shifts cannot be rational: they are revolutions that play out through emotions and changing power balances. There is scientific growth, but only within that paradigm. - Lakatos on Kuhn’s incommensurability and why he believe growth of knowledge is possible. Kuhn’s ’’paradigm’’ = Lakatos’ ’’research program’’. There’s progress within a research program if it is theoretically and empirically progressive. A program is theoretically progressive if subsequent theories have more and more empirical content. It is empirically progressive as theories get better and better corroborated by empirical results. If a program is neither, it is degenerative. Scientists, especially young ones will be rational enough to engage in progressive programs. This will allow paradigm shifts ( or changes in the dominant research programs) to occur in rational ways that allow scientific growth to continue despite them. - David and Dasgupta, in contribution to the ESK, argue that science can be organized to incentivize undertaking of basic fundamental scientific research. Explain. Downloaded by Hannah Ho (hannah900829@gmail.com) Acc. to David and Dasgupta, scientists are motivated by reputation than money. They believe that if there is competition in an open and transparently organized science, fundamental research will definitely be undertaken because the chance at a breakthrough is higher that way and path breakers will get far more fame than those applying other people’s ideas as long as they can claim they were the first to publish that breakthrough. - Jack Amariglio and Popper in relation to reductionism. Amariglio provided a assumptions including: list of structuralist There is a single scientific method; Knowledge has foundations; Things and beings have essential natures. Reductionism is the idea that all knowledge can be reduced to a single essence (essential natures) . This essence can only be found if knowledge has a foundation that’s analyzed in a structured coherent way (‘a single scientific method’). Popper believes in a single scientific method which is falsificationism. Laws are to be tested by confronting them with foundational observations and by striving for ever more empirical content, their true essence is to be approximated. Especially the latter is very reductionistic. - Friedman makes implicit methodological value judgements on acceptable research methods 8 lOMoARcPSD|18932839 and standards of validity. Explain those judgements. Friedman prescribes model building aimed at correct predictions on well circumscribed domains. Regarding method, this implies specifying the domain and specifying the most important factors at that domain. Regarding standards of validity, this means that a theory is better, the clearer its domain is demarcated and the more precise and correct its predictions at this domain are. - Deductive-Nomological model in relation to the received view of science and concept of symmetry. The DN model is the standard model of explanation of the logical positivists. Acc. to the DN model, a scientific explanation consists of an explanans and an explanandum. The explanans consists of a few correct statements, at least one of which is a law-like proposition. The explanandum can be derived from these statements by following the rules of formal logic. If the explanandum is known, the explanans provides the explanation. If the explanandum is not yet known, the explanans allows one to predict it (symmetry). - Samuelson’s deceptivism in relation to the DN model. Samuelson’s descriptivism implies that laws cannot be formulated. But laws are indispensable for DN type of explanations. Hence Samuelson rejects the goal of predicting or explaining in a DN way. - Lakatos’ Methodology of Scientific Research Programs (MRSP) synthesize the ideas of Kuhn and Popper. Give a description of the methodology and which elements were inspired by Popper/Kuhn. Acc. to Lakatos, a SRP consists of a hard core of presuppositions protected by a protective belt of less fundamental hypotheses and theories. The hard core can be likened to Kuhn’s disciplinary matrix. Which cannot be adjusted without overthrowing the whole SRP. Acc. to Lakatos, an SRP consists of a series of theories, where falsified theories are replaced by new theories that collectively have more empirical content. Lakatos called this sophisticated falsificationism. In coming up with new theories, hypotheses in the protective belt are often adjusted, which Popper would probably consider an unacceptable immunization ex post. Lakatos, however feels these should be allowed given the problems with Popper’s naïve falsificationism which were highlighted in the Duhem-Quine thesis. Scientific progress within an SRP can be likened to the scientific progress that occurs within paradigms in periods of normal science as Kuhn describes it. An SRP that is no longer able to adjust its theories in such a way that the SRP’s collective empirical content is rising, is no longer progressive, but degenerating. It is to be expected that scientists will leave degenerating SRP’s and opt for progressive ones. This is similar to Kuhn’s paradigm shift. But, in contrast to Kuhn, Lakatos Downloaded by Hannah Ho (hannah900829@gmail.com) considered a paradigm shift as a rational choice for progressive SRP’s at the expense of degenerating ones. - The SSK’s and McCloskey’s rhetoric approach are essentially socially constructivist. Explain. Truth/knowledge/ facts arise from social interaction. SSK studies these interactions by paying attention to social relations and social embeddedness of scientific communities. McCloskey looks at how knowledge gets disseminated and accepted through conversations. Both give prominence to the processes or social relations that result in consensus. - Logical Positivists and Popper both distinguished between the context of discovery and the context of justification. SSK did not maintain this distinction. Explain why. According to SSK, science is justified and transformed by the scientific community in which the research is done. This implies that the process if justification coincides with the process of discovery. - Methodological value judgements made within rational choice theory, together with the value ladennes of a concept like ‘rational’, imply that rational choice explanations are strongly valueladen. Explain. ‘Rational’ is value laden because its technical and everyday meaning do not coincide. Its everyday meaning implies an ethical judgement (it is good to 9 lOMoARcPSD|18932839 be rational). Technically speaking, rationality is about maximizing preference satisfaction given limited means. Because of the methodological value judgements on domain, methods and validation standards, inherent in economics, economists opted for a mathematical analysis of the consequences of rationality. This analysis shows that what is good for individuals benefits society at large. So individuals are advised to satisfy their preferences. But such a conclusion neglects all other norms on what is good. So the conclusions in rational choice theory end up being political statements on how one should behave. - Logical positivists in relation to universal laws. According to Hume’s induction problem, universal laws cannot be verified: verification is always based on a limited set of observations, and the possibility that a law-like regularity within this set fails outside the set can never be excluded. Acc. to the demarcation criterion of logical positivism, however, scientific theories should be based on analytic statements and verifiable or verified synthetic statements only. Consequently, scientific theories should not contain universal laws, as they are neither analytical nor verified or verifiable. - The Duhem-Quine thesis in relation to the methodology of Milton Friedman. The D-Q thesis suggests that if one has an observation that contradicts with the model, it does not necessarily mean that the model is refuted. It could be that one of the used theories is refuted, or that a measurement error was made, etc. This also applies if a prediction of the model is not true. Because, according to Friedman, models must be validated on the basis of how well they predict, the Duhem-Quine thesis shows that with this method of validating it still is not clear whether it is the model or something else that is good or bad. - It must satisfy the requirements of Hempel’s deductive-nomological model of explanation. An explanation should consist of at least one law and true statements of initial conditions. - Lakatos on scientific progress within a scientific program. Lakatos believes that when a theory is falsified, it must be repaired. The new theory includes the previous, falsified theory plus an explanation for that falsification. The development of this new theory must be carried out without affecting the assumptions of the hard core. Analytic statements and synthetic a posteriori statements are scientific statements according to Logical Positivism. Since analytic statements are analytically verifiable and synthetic a posterior statements are empirically verifiable. - - Methodological Received View descriptions. values of science of and the their Many values are possible, as long as they clearly fit the Received View. Merton’s four values could be used along with their methodological consequences (universalism, organized skepticism, disinterestedness, communalism). - An explanation is an answer to a why question. What requirements, according to Logical Positivism, must such an answer satisfy to be a scientific explanation? Downloaded by Hannah Ho (hannah900829@gmail.com) Immanuel Kant distinguished the following categories of knowledge statements; analytic statements, synthetic a priori statements, and synthetic a posteriori statements.Which of these statements are, according to Logical Positivism, scientific statements? Explain why. Which of these statements are, according to Karl Popper, scientific statements? Explain why. All statements are scientific statements according to Popper, as long as they are falsifiable. - The Duhem Quine thesis lays bare a problem regarding a Popperian methodology.Describe the problem. A theory can never be conclusively falsified, because we necessarily test the theory in conjunction with its auxiliary assumptions and background conditions. A refutation does not clarify what has failed, the theory or one of the background assumptions? 10 lOMoARcPSD|18932839 Does this problem also apply to Friedman’s methodology. Explain the answer. revolution affect normal science/ Describe these consequences. The problem does not necessarily apply to Friedman’s methodology. When a prediction of a theory or model is rejected, the theory is considered to be rejected, because the background conditions are often considered to be part of the theory or model. A scientific revolution is when a normal science is superseded by another normal science, but it does not affect what the new normal science should be. - - - Alan Musgrave distinguishes between three different types of assumptions.What are the types of these assumptions? Describe them briefly. Negligibility assumption; a factor that could be expected to affect the phenomenon under investigation actually has no detectable effect. Domain assumption; an expected factor is absent, and so is used to specify the domain of applicability of the theory concerned. Heuristic assumption; if a factor is considered to be negligible, in order to simplify the ‘logical’ development of the theory. Why did Musgrave distinguish these types of assumptions? To indicate how assumptions can be true, or how assumptions can be realistic? Explain your answer. How the assumptions cans be realistic. An assumption functions to simplify, abstract, or idealize the phenomenon under investigation, therefore they are never true. - Falsificationism; theories should be falsifiable. - Thomas Kuhn speaks of normal science and scientific revolutions. How does a scientific What elements of Lakatos’methodology are typically Kuhnian? Describe these elements. Progress is evaluated with respect to research programs and not with respect to individual theories. - Imre Lakatos’ methodology can be regarded as a synthesis of Popper’s falsificationism and Kuhn’s view on science.What elements of Lakatos’s methodology are typically Popperian? Decribe these elements. Robert Merton identified four core values of science: universalism, organized skepticism, disinterestedness and communalism.Describe these core values. Universalism: claims to truth are evaluated in terms of universal or impersonal criteria, and not on the basis of race, class gender, religion, or nationality. Organized skepticism: all ideas must be tested and are subject to rigorous, structured community scrutiny. Disinterestedness: scientists are rewarded for acting in ways that outwardly appear to be selfless. Downloaded by Hannah Ho (hannah900829@gmail.com) - Communalism: the common ownership of scientific discoveries, according to which scientists give up intellectual rights in exchange for recognition and esteem. Explain of each value in what way it corresponds to the scientific norms of Logical Positivism. Universalism corresponds with Positivist’s aim of unified science. Organized skepticism verifiability principle. the corresponds Logical to the Disinterestedness corresponds with the Logical Positivist’s aim of value-neutral science. Communalism knowledge. - corresponds to objective According to Deirdre McCloskey, science is a specifically organized ‘’civil’’ conversation. What are, according to ESK, the norms such ‘’civil’’ conversation must meet? Various possibilities, among which the following may apply: The norms of an efficient market. The norms of open science. Merton’s four norms. - According to the Logical Positivism, integrating theories in a general theoretical framework (unification) leads to better 11 lOMoARcPSD|18932839 knowledge. Later philosophers of science emphasize pluralism. Give arguments for both positions. Unification ensures coherence and consistency of scientific knowledge. Unification can also lead to more general knowledge. Pluralism is preferred by some philosophers because it accepts that multiple forms of knowledge exist, which may be incommensurable or inconsistent with one another, but which taken together may give more complete knowledge. - Plagiarism is considered to be fraud. Which methodology (philosophical approach), discussed in the course economic methodology, has a scientific norm that you should not plagiarize? Explain why this is so. Any SSK/ESK/ES account in which the reputation of individual scientists play a central role, or which includes an incentive system that rewards individual contributions. Rhetoric, if it includes a norms for civic conversation that excludes this kind of fraud. - According the strict criteria of the original Logical Positivism, universal statements are no part of science, because of the problem of induction. Provide and describe two later developments in Logical Empiricism in which these criteria have been revised such that universal statements still are part of science. Instrumentalism: universal statements are merely considered as useful instruments whose value is measured not by whether they are true or false, but by how effectively they explain and predict phenomena. Confirmationism: universal statements do not express certain knowledge but instead express probabilistic knowledge. - According to Tjalling Koopmans measurement without the usage of a theoretical frameworkmeasurement without theory – is unscientific. Therefore he has various arguments. Explain one of his arguments. Theory is needed to clarify how the empirical results have to be interpreted. Without theory it is not clear what a researcher means by the applied concepts and terms. - Explain how the Dunhem Quine Thesis is a problem for a Popperian methodology. According to the Dunhem Quine Thesis, a theory can never be falsified. Finding a falsifier does not mean that the theory is rejected: measurement errors or operationalization errors can be made, or an auxiliary theory is rejected. Some of the theory adjustments afterwards which Popper could call immunizing, can, however, be considered as theory improvement. If this happens in an ad hoc manner, this is a stratagem that Popper disproves, because it induces unjustified immunizing afterwards. Downloaded by Hannah Ho (hannah900829@gmail.com) - Explain that the incommensurability thesis of Thomas Kuhn excludes that the development of science is only a rational development. Development of knowledge is tied to rules that yield within a paradigm. When anomalies show that these rules do not work appropriately anymore (more and more puzzles cannot be solved), a revolution will be the result which eventually leads to a new paradigm with a new world view and new rules. Paradigm-trascending rules do not exist and so one cannot say that the new paradigm is an improvement: they are incommensurable. - An important element of the methodology of Lakatos is the use of ‘novel facts’for the assessment of theories. Explain the use of novel facts for the assessment of economic science can be problematic. A research program is progressive when new puzzles can be solved. It is theoretically progressive when it contains the promise of solving puzzles and empirically progressive when it really solves the problems, but when this last kind of progress have to take place is not determined. - Barnes and Bloor formulated four methodological principles for SSK: causality, impartiality, symmetry and reflexivity. Explain why this last principle of reflexivity relativizes the findings of SSK. 12 lOMoARcPSD|18932839 Reflexivity implies that the SSK principles are not settled but can be investigated with the principles of SSK: a SSK of SSK. Because in that case one uses the same principles, one can never determine why these principles were chosen. 13 Downloaded by Hannah Ho (hannah900829@gmail.com)