On Thoughtless Rationality (Rules-of -Thumb)

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KTKLOS, Vol. 40 -1987 -Fasc. 4,496-514
On Thoughtless Rationality (Rules-of -Thumb)
AMITAI ETZIO~I*
I.. THE ROLE OF RULES
In strenuous efforts to shore up the beleagueredneoclassic~lparadigm,
its followers argue that individuals may render rational decisions without processinginformation or deliberations, by using 'rules of thumb'.
'Cognitive capacity is a scarce resource like any other... To gather the information and
do the calculations implicit in naive descriptions of the rational choice model would
consume more time and energy than anyone has... Anyone who tried to make
fully-informed, rational choices would make only a handful of decisions each week,
leaving hundreds of important matters unattended. With this difficulty in mind, most
of us rely on habits and rules of thumb for routine decisions' [FRANK,1987,pp. 3-4].
These rules are provided to individuals by their culture, organizations, or are products of their previous experience.The 'discovery' of the
rules of thumb is tied to admission of information costsinto the neoclassical paradigm. Early neoclassical economic models assumed that all
individuals have perfect information, instantaneously and freely. Once
information costs were included, it became evident that many optimal
calculations are too costly to complete. As BAUMOL
and QUANDT[1964,
p. 23] put it:
'the morerefinedthe decisionmaking process,the moreexpensiveit is likely to be,and
therefore,especiallywherea decisionis not of crucial importance,no more than an
approximate solution may be justified. Since all real decisions are made under
conditions of imperfect information, calculation down to the last decimal place is
pointless in any event.One can easilyformulate the appropriate (though not very
helpful) marginal condition for what one may call an optimallyimperfectdecision.
which requires that the marginal cost of additional information gathering or more
refined calculationbe equalto its marginal (expected)grossyield.'
* Professorat the GeorgeWashingtonUniversity,Washington.
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ON THOUGHTLESS RATIONALITY
HAYAKAWAand VENIERIS[1977,p. 601],who otherwise depart from the
neoclass'ical paradigm, and who recognize the role of social groups in
shaping preferences and in processing information about choices, simply
assume that the resulting rules (or heuristics) are 'a useful and orderly way
of defining range of options involved in a variety of choice problems'.
The rules themselves are said to be rational because they reflect an
accumulative experience or are the beneficiaries of evolutionary developments: those who follow non-rational rules are driven out by those
who adhere to the rational ones. Hence, non-rational rules will be swept
aside by the rational ones.
The following discussion focuses on the rules of thumb (and other
devices for which the same neoclassic arguments have been advanced) to
show that (a) the empirical evidence about the rationality of these rules is
dubious, and that (b) they logically cannot serve as a basis for rational
conduct. He who lives by rules of thumb may be somewhat less or
somewhat more non-rational than those not so guided, but not very
rational by the criteria applied here and generally accepted.
Before turning to an evaluation of the thesis of rationality one step
removed, or macro-rationality,
it must be noted that this position has
been advanced for a large variety of collectively provided decision
guides. Some neoclassicists refer literally to rules of thumb, common in
the informal culture, as exemplified in such popular sayings as 'look
before you leap'. Others refer to formal rules, for example those instituted in corporate and other organization policies. Still others focus on
cognitive patterns such as heuristics or 'routines', for example the use of
abbreviations as memory aids. The same point is also applied to societal
institutions, value systems or norms of conduct ranging from those that
define one's table manners to those that guide behavior at a funeral. All
these rules 'inform' the individual how best to behave, without any
necessary calculations or forethought [MARCHand OLSEN,1984; HEINER,
1983, p. 573]. In the following discussion the term 'rules' is used to refer
to all these phenomena.
II. AN EMPIRICAL TEST: PRICE SElTING IN FIRMS
The most detailed empirical testing of the rationality of decisions by
provided rules has taken place with regard to price setting in firms. It has
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AMITAI ETZIONI
been often observed that business executives do not set prices at the
place a simple profit maximization theory states they ought to, where
marginal costs equal marginal revenue.Instead, prices are setwhere firm
policies tell executives to set prices. But do these rules (corporate
policies), guide executives to the same maximal point?
One of the earliest and most influential studies on the use of rules is
that of HALLand HITCH[1936].They surveyed38 British firms and found
that in 30 firms the executivessaid they used full cost pricing rules. Full
cost pricing rules basically add a 'normal' or target profit margin (or, a
percent return on invested capital) to an estimate of unit costs to
establish a product's price. When the executives were asked why they
used such rules they provided three responses: (1) to deal with the
uncertainties in the estimatesof demand functions; (2)to avoid charging
too high a price (and driving away customers)or too Iowa price (in an
oligopolistic market); (3) for businessesthat sell thousands of different
items the marginal cost pricing calculations required would impose a
great burden on them.
MACHLUP[1952]takes issue with HALLand HITCH'Sconclusion, suggesting that full cost pricing leads to profit maximization. Using HALL
and HITCH'Sdata, MACHLUPargues that executives observed full cost
pricing only as long as it was consistent with profit maximization.
Further, MACHLUPnotes that looking closely at the answersthe executives provided shows that demand was in fact considered in pricing.
Firstly, some businessmen admitted that they would change price in
periods of exceptionally high or low demand. Additionally, MACHLUP
points out that the answers executivesprovided to the question of why
they used full cost pricing -fear of competitors and demand being
unresponsive to price -showed that they were taking into account
demand elasticities 'which to the economist is equivalent to marginal
revenueconsiderations' [1952,p. 71].Further, he points out that respondents were using demand signals, though the term elasticity might not
have been used. MACHLUPessentially baseshis response to HALL and
HITCHon the idea that they had expected executivesto act like economists, drawing marginal revenue and marginal cost curves and
speaking of elasticity in precise numbers. When this was not the case,
HALLand HITCHjumped to the conclusion that profit maximization was
not taking place. In effect, MACHLUPsays,the rules used proved to be
guidelines to maximization in all but the terminology used.
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ON,THOUGHTLESS
RATIONALITY
In their influential study, CYERTand MARCH[1963] in effect supported HALL and .HITCH.They were able to predict prices at a large
departmentstore with great accuracyby discerningthree rules for
pricing in different situations: normal pricing, sales, and markdown.
While the periods in which normal prices and sales prevail take place at
regularly scheduled times, markdown is a contingency employed in the
failure or the perceived failure of these two other rules. For each
situation a common procedure is used which determines price by the
application of a predetermined, rule-based markup to a cost.
Using these rules CYERTand MARCHwere able to predict prices in a
normal pricing situation down to the penny 188 out of 197 times (a
95 percent successrate). In regard to sales pricing, 'pricing is a direct
function of either the normal price (i.e., there is a standard salesreduction in price) or the cost (i.e., there is a sales mark up rule)' [CYERTand
MARCH,1963,p.139]. They were able to predict the prices correctly down
to the penny 56 of 58 times (a 96 percent successrate).
Markdown is a situatiQn employed when feedback indicates an
unsatisfactory sales or inventory position. Even though markdown is a
contingent situation, still rules were found to govern the ways it is
treated. First, prices were not to be set below cost save as a last resort.
Second, prices were to be reduced by one third and the result carried
down to the nearest85 cents. With theserules and few others CYERTand
MARCHwere able to correctly predict prices down to a penny in 140ofl59
markdown situations (an 88 percentsuccessrate). It should be noted that
such a level of prediction is practically unknown in economics or in
other social sciences, and this study should be regarded as very compelling empirically.
It would seem that pricing policies like the aforementioned only
take into account the cost side, not studying the demand side at all. It,
hence, would seem that profit maximization is not taking place. However, NICHOLSON
[1978,p. 275]argues that despite the fact that the rules
appear to consider cost alone, demand is ultimately to be considered as
well:
'R.M. CYERTand J.G. MARCHspend considerable effort in analyzing the feedback
that the market provides for the pricing of a product. Even though prices and profit
margins may initially be set without adequate reference to demand, the reaction of the
market provides information on the true demand situation, and prices are adjusted
accordingly.'
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AMITAIETZIONI
In short, NICHOLSONis trying to do to CYERTand MARCH what
MACHLUP did to HALL and HITCH: Use their own data to argue for the
rationality of rules. Other studies provide additional ammunition -to
both sides of the debate.
In a study that examined a group of companies over nine years,
LANZILLOTTI[1958] found that companies followed various pricing rules.
These include pricing to achieve a target return on investment; stabilization of price and mark-up margin; pricing to realize a target market
share; and pricing to prevent or meet competition. About one half of the
companies indicated that their pricing policies were based mainly upon
the objective of realizing a particular rate of return on investment in a
given year, over the long haul, or both. The question has been raised
whether a firm is maximizing profits when it sets a target rate of return
or is it setting a satisfying goal it wishes to achieve? LANZILLOTTIpoints
out that actual returns over a nine year period (1947-1955) were greater
than the target returns, at which the prices were set. He casts considerable doubt on whether the difference can be attributed to profit
maximization.
Insofar as how the profit target was set LANZILLOTTI [1958, p.931]
notes:
'The most frequently mentioned rationalizations included: (a) fair or reasonable
return, (b) the traditional industry conceptof fair return in relation to risk factors,
(c) desire to equal or better the corporation averagereturn over a recent period,
(d) what the companyfelt it could get as a long-run matter,and (e)use of a specific
profit targetas a meansof stabilizing industryprices.'
In regard to pricing for stabilization LANZILLOTTI
[1958,pp. 931-932]
develops the concept of corporate noblesseoblige which scarcely coincides with profit maximization but is more like the Marquis of Queensbury rules:
'The drive for stabilized prices by companieslike U.S. Steel,Alcoa, International
Harvester,Johns Manville, du Pontand Union Carbideinvolves both expectationof
properreward for duty done,i.e.,properprices,anda senseof noblesse
oblige.Having
earnedwhat is necessaryduring poor times to provide an adequatereturn, they will
refrain from upping the price as high asthe traffic will bearin prosperity. Likewise,in
pricing different items in the product line, there will be an effort (sustained in
individual casesby the pricing executive'sconscience)
to refrain from exploiting any
item beyond the limit setby cost-plus.'
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ON THOUGHTLESS RATIONALITY
However, KAHN[1959]argues thatLANZILLOTTI'S
data can be used to
strong1y'supportt~e thesis that even large corporations try to maximizeprofits.
KAHN [1959, p.671] notes that the widespread use of targetpricing,
'which is really an aspect of full cost pricing, provides their [LANZILwnl, et al.]
principal evidence against profit maximization in general and the marginality description thereof in particular. This misconstruction is in confusing procedures with
"goals". Actually the target return seems above all to reflect what the executives think
the company can g~t; and as to the extent actual earnings diverge from the target it is
because the market turns out to allow more or less' [KAHN, p. 671).
In a response to KAHN's criticism LANZILLOTTI
[1959]states that the
concepts of target return and target market share seemfar more helpful
in predicting and understanding the price behavior of large corporations
than any notion of profit maximization. LANZILLOTTI
suggeststhat target
rates of return are useful quantifiable measurescorporations strive for,
while profit maximization, given its ambiguity, is likely to be an ex post
rationalization. LANZILLOTTIalso asks '... whether by stating that the
target return is really another name for profit maximization, KAHNhas
explained anything about the pricing policies of large corporations'
[LANZILLOTTI,
1959,p. 682].
KATONAconducted one of the few studies of the use of rules for
decisions involving investment rather than setting of prices. KATONA
[1975,p.323] notes that decisions on plant building and locale and
acquisition of new equipment are enduring and nonreversible. They in
general involve large sums of money; hence, one would especially
expect rational behavior in thesedecisions. 'In fact, evencasualobservation reveals numerous instances in which rules of thumb prevail and
business investment appearsto be the habitual or evenautomatic result
of certain conditions rather than the outcome of careful deliberation.'
One example is the 'follow the leader' principle: In various industries
Qnefirm is often looked upon asa leader whosedecisions are imitated by
other firms, whether or not it was justified in view of intra-industry
'differences of 'first mover' advantages. Decisions to introduce new
technology have a fadlike quality.
Without attempting to explore here further the ins and outs of these
studies, their respective merits, let alone review still others (a task
undertaken by SCHERER
[1980,pp.187-189», it is clear that the samedata
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[II.
AMITAI ETZIONI
are interpreted by some as indicating that rules canbe used to maximize,
i.e., are fully rational, and by others to showthat rules cannot so serveand
in effect perpetuate poor practices. The obvious conclusion is that the
rules are not sufficiently specified to allow either their rational application
or -study. Luckily, we shall seeshortly, the empirical questionneed not be
answeredin order to reach a conclusion on the merit of rules.
ORGANIZATIONAL CASE STUDIES
Organizations of all kinds from armies to churches, from public schools
to prisons, promulgate large numbers of rules that direct and coordinate
the activities of their members. While these rules change over time, as
indicated by the term 'bureaucracy' often applied to organizations, their
adjustmentto changedrealities is frequently slow and far from sufficient
to ensure rational adaptation. An overview of the relevant literature
concludes: 'Rules are broadly adaptive, but there is no guarantee that
they reflect optimal, or even acceptable, solutions when new problems
arise' [STERN,1984,p.lIO]. Adaptation of rules are also reported to be
limited to the 'local' problem area and not organization-wide. And when
executivesare faced with unfamiliar, new, complex situations, they tend
to break them into components and deal with those elements that are
familiar or look familiar.
PERROW'S
[1981,p.17] study of the nuclear accident at Three Mile
Island near Harrisburg, Penn., concluded that 'it is not feasible to train,
design, or build in such a way to anticipate all eventualities in complex
systemswhere the parts are tightly coupled. They are incomprehensible
when they occur. That is why operators usually assumesomething elseis
happening, something that they understand and act accordingly'.
During the accident significant readings were not communicated to key
personnel because operators did not believe them. Thus, rules (in the
sense of 'routines')delayedproper responseto the novel situation because
people misinterpreted the situation and did not recognize it as novel.
PERROW[1981,p.25] notes: 'This is the significance of the widely
reported comment by the NRC commissioners that if only they had a
simple, understandable thing like a pipe break they would know what to
do.' Other studies show that organizational rules for collecting information tend to result in information over-load in which important items go
unnoted. It is a problem commonto mostintelligence services.This is one
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ON THOUGHTLESS RATIONALITY
main reason the warning about imminent attack on Pearl Harbor was
'lost' on 'its way to Washington [WOHLSTETTER,
1962]. When new automatic gatesclosing training crossingswere introduced in Britain, a major
train disaster, known as the Hixon disaster, followed. It was established
later that slow moving vehicles could not clear the crossing ,in the
allotted 24 seconds.This fact was duly noted in a long technical manual
provided to every policy station as the new gates were introduced but
was obviously 'lost' in the avalanche of information the manual contained [TURNER,
1976; see also NEUSTADT
and FINEBERG,
1978].
NuTT [1984]studied 78 decision-making profiles of predominantly
service or voluntary organizations. He finds that managersviolate all the
rules advocated by academics for 'good' (rational) decision-making. The
managers assume away uncertainty and treat causation and desired
results as clear and specific thereby creating a false sense of security;
NUTTreports, they have a predisposition to focus their rule searchvery
narrowly as they have a 'low tolerance for ambiguity and a high need for
structure' [1984,p. 446].
CYERTand MARCH[1963,p.121]note that the searchprocessis based
initially on two simple rules, hardly rational ones: '(1) search in the
neighborhood of the problem symptom and (2) search in the neighborhood of the current alternative. These two rules reflect different dimensions of the basic causal notions that a cause will be found "near" its
effect and that a new solution will be found "near" an old one'.
An example of how such a limited search leads to a nonrational
responseis provided by HALL[1976,p. 201]in his study on the decline of
the old SaturdayEveningPost. HALLpoints out that when the managers
of the Postfaced rising production costsdue to excessiveexpansion that
resulted in depressedprofits, they responded by substantially increasing
the subscription rate. This proved to be the Posts undoing for their
readership growth leveled off and their profits were further depressedas
a significant amount of funds had to be spent on promotion merely to
hold readershipsteady.The Postthus staggeredinto the circulation wars
of the 1950sin poor financial shape and never recovered. HALLargues
,that this is a typical result of a narrow rule searchstrategy that leads one
to select an increasing of the subscription rate rather than attacking the
'underlying causalstructure of the problem (namely, the loss of control
of the annual volume and the consequentincrease in production costs)'
[HALL, 1976,p. 201].
AMITAI ETZIONI
Sometimes rules rather than change inadequately, fail to change at
all. Historically developed rules continue on long after their usefulness
is lost and when more efficient alternatives are readily available. For
example, despite the obvious fact that constant prices are the best
measureof economic activity, nominal prices are still very widely used in
financial reports, contracts and government studies [BARAN,LAKONISNK
and OFER,1980J.CYERTand MARCH[1963,p.138Jreport that frequently
the mark-ups within an industry remain the same for 40 or 50 years.
Also, rules may be rational but may be implemented incorrectly
becausetheir guidance was insufficiently specified, promulgated incorrectly, or inconsistently followed [SPROULL,
1981; BRITAN,1979J.For
example, managers often convey rules orally, and then maybe only in
response to questions, which does not ensure all will know the rules
[SPROULL,
1981,p.119J.
Finally, the study of rules as rational assumesthere are clear goals, at
least -some set goals even if somewhat unclear. However, this is often
not the case. A study of OMB under President Kennedy depicts the
difficulties the agencyhad in formulating specific budgets becausethe
President failed to set the total outlay targets [MOWERY,et al., 1980J.
Indeed, for many organizations, not just the situation is in flux but also
the goals [SILLS,1957J,rendering the use of most rules nonrational. In the
US Navy sailors were trained to step back whenevercannonswere fired
on deck long after the piece of artillery ceasedto jump back when fired.
Many of the points made in defense of the use of rules asrational, and
-the criticism -can also be made about the use of agents. For example,
neoclassicistsargue that individuals may not be able to read an insurance policy but they can pay a lawyer to read it for them and thus still
choose rationally among policies. When it is argued that people cannot
evaluate the service of agentsrationally, it is suggestedthat a 'market'
will drive out the agents that are serving the client vs. those that do not.
This would be true if the individuals could evaluate the advice and if
there was a competitive market among agents. Often, neither is true.
Told, for example, that life insurance X is better than Y, how manytimes
do people die and come back to evaluate their death benefits? The same
holds for many other such products from insurance for catastrophic
illness or nursing homesto legal advice in the caseof a divorce. A study
of patients' evaluation of their physician shows (a) they are unable to
evaluate them rationally and (b) are selecting them on the basis of
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irrelevant cues (such as the opulence of their reception rooms). The best
predictor of the agent to sell one insurance is not hi~ or her competitivenessbut how much the agentis able to evoke a senseof affability in the
client [CHESTNUT,
1977]. To further discuss the pros and cons of the
rationality of the use of agents, and the parallelism and divergences inthe
rules sub-theory and the agents sub-theory, will cause a major
digressionand hence is avoided. Agents are mentioned only to add themto
a socio-economic researchagendacharted here but not implemented.
IV. RULES CANNOT BE USED RATIONALLY
The empirical evaluation of the use of rules seemsinconclusive. Despite
severalsizable studies, conducted over decades,it is not possible to draw
a firm conclusion whether or not rules enable their followers to act
rationally, because, it seemsthe theory is insufficiently specified. As a
result, the same evidence is interpreted by some as supporting, and by
others as negating, the same hypothesis. While several case studies
provide considerable plausibility to the thesis that the application of
rules often leads to non-rational behavior, such studies, by their very
nature of being 'cases',are not fully compelling, especiallyto those who
are used to quantitative data. There is, though, a way to resolvethe issue
because one can show that rules in many situations cannot provide
rational guides. It is a matter of sheerlogic, not of empirical evidence.
The discussionturns next to provide severalreasonsin support of the
position that the use of rules is a priori non-rational in many circumstances.
1. Rules are typically advanced in isolation from one another rather
than part of an overarching system. As a result they tend to ignore the
fact that an efficient response to most challenges in the real, complex
world require taking into account multiple considerations.
At the same time, there is no reason to deny that in some instances
some simple rules prove very useful, at least until their use becomes
widely known. The IRS is using numerous guidance rules, collated into
ClassificationHandbook IRM 41(12)0.For example, the IRS pays special
attention to children claimed as exemptions by separated parents
because they are often claimed by both while only by one is proper.
Hence, while one may expect, becauseof the a priori reasonsprovided
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AMITAI ETZIONI
above, that rule guided behavior will often be quite non-rational; this
generalization cannot be applied to every instance. As to the question,
under what condkions the application of rules is relatively more
rational. This seemsto be a matter about which relatively little is known.
2. When individuals are provided with more than one rule, those
rules often conflict with one another. For example, investors are told to
'buy low and sell high' (an ambigous rule by itself, becauseno definition
of either 'high' or 'low' is included and hencethe rule invites investors to
project their feelings on the situation). Sometimes'high' or 'low' refers to
pricelearnings (PIE) ratios. However, what is a high ratio is not agreed
and people are advised to invest in stocks of 'high-growth' corporations
despite the fact that their PIE ratios are often infinite because they
initially show no profit at all. Investors are also advised 'notto fight thetape'
and to 'let their profits run but cut their lossesshort'. These rules
suggestthat if prices of stock move up, investors ought to expect them to
move still higher, while if the prices fall- and hence are relatively lowinvestors ought to bailout. These rules are incompatible with one
another.
3. Rules are typically formulated as if they were universal truths,
applying to all circumstances, to all times, and to all people. Three
examplesillustrate the fallacy of universality: Rule number 810from the
only book exclusively dedicated to 'rules of thumb' [PARKER,
1983]reads:
'Don't pay more than twice your average annual income for a house.' It
neglects to mention if gross or net income is at issue and the effects of
one's tax status. For example, given current tax laws it makes much more
sensefor a person with a high income but few other deductions to violatethe
rule than one with lower income or many deductions. Also, different
tax laws apply to those who are 55 years or older than to younger persons
-for instance, the one-time exclusion on capital gain from the sale of
one's house.
Rule number 96 warns those who launch a political campaign that
'a certain percentage of voters will be for or against you based purely onparty.affiliation
Only a small percentageof voters are truly independent
and will consider you without bias'. First, like the buy-low, sell-high rule,this
one contains vague terms such as 'certain percentages' and 'truly'.
To the extent that its meaning is that political affiliation is much more
important than the person, it holds much less now than, say, twenty
years ago.
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When the value of the dollar on foreign exchangesdropped 20 percent early in 1985 many economists feared that this would exacerbate
inflation in the United Statesbecausea 10percent drop was expected to
add 1.5 percent to 2 percent to inflation. But JAMESE. ANNABLE,chief
domestic economist at the First National Bank of Chicago, stated that
this will not be the casebecause'rules of thumb that applied in the 1970s
don't apply in the 1980s'[New York Times,March 31, 1983].He did not
elaborate if the rules must be adapted every decade, or more often or
how one tells before the fact if they still apply.
Ample examples of the application of rules out of context is found in
the frequent use of neoclassical economics in policy making. Much of
neoclassical economics is formulated on the assumption that it takes
place in a fully competitive market. However, suchmarkets are often not
available, not evenapproximated. Yet rules formulated for full competition are applied, often without even an attempt at adaptation, to the
fundamentally different situation or context.
4. When rules conflict people will follow the rule that coincides
with their subjective estimates and own values. For instance, a less risk
averse person may follow rule number 102: 'Don't enter a poker game
unless you have forty times the betting limit in your pocket'. The more
risk averse may pick rule number 103: 'Don't enter a poker game unless
you have sixty times the betting limit in your pocket' [PARKER,1983,
p.17].
Another pair of conflicting rules is discussed by KINDLEBERGER
[1985,p.l] in his essay on the social responsibility of corporations. He
writes: 'The least of the issue is the clash between"When in Rome, do as
the Romans do", and "To thine own self be true"'. Many a corporation
chooses between those not according to some cost benefit study but in
line with its established culture.
5. Another way to see that rules that culture offers are not rational is
to see that they are often not sufficiently specific to provide guidance.
Barron's publishes a weekly polling the 'sentiments' of traders in Treasury bonds and bills, expressed in percentage 'bullish'. But it always
adds the note that 'high readings usually are signs of market tops, low
ones, market bottoms'. Neither high nor low (or used) are defined.
Hence, in effect, the weekly table provides a typical two-faced, highly if
not completely, ambiguous rule. Ifbonds go up, the poll is 'validated'; if
not -the note is. Together they provide at best a very vague guidance.
507
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,
'No price is too low for a bear or too high for a bull' notes Barron's
[11-10-86,p.16]. Many rules are such.
Editing and writing are taught by rules but those who have taken such
a course can attest to how bewildering such rules often are. NORMAN
MAILERregularly violates most rules taught in courses on the writing of
proper English but is considered a very crafty author (reference is to
style, not content). KENNER[1985,p.I] writes: 'The plain style has been
hard to talk about, except in circles.. .' SWIFT,KENNER
reports, refers to it
as 'proper words in proper places' but KENNERpoints out that SWIFT
does not explain 'how to find the proper words or to identify the proper
places to put them into' [KENNER,
1985,p.I].
6. Psychologistshave shown that people often evaluate the validity
of messagesusing rules such as 'length implies strength', 'consensus
implies correctness', 'expert's statements can be trusted' [CHAIKEN
and
STANGOR,
1987].The knowledge that people are vulnerable in this way is
used to fashion persuasiveadvertising. For example,actors who impersonate doctors are used to 'recommend' over the counter drugs to buyers
who hardly need them. That is, rules people follow in their decisionmaking are used to deflect them from rational decision-making rather
than to help.
EXPERIENCEAND EVOLUTION
People are said to drop non-rational rules and retain rational ones as
their personal or collective (shared) and accumulative experience
teaches them which rules work. Actually the users of rules cannot judge
or evaluate them any better than the options they faced to begin with and
which led them to use rules, for basically the same reasons they cannot
make a rational decision to begin with. (WINTER [1975Jmade the same
point about information costs.) The fact that heuristics are systematically biased and hence constitute a poor guide to decision-making is well
established. Evidence in support of non-learning is seen in that people
keep making the same numerous systematic mistakes in evaluating
probabilities using the same biased heuristic. Over the course of a
lifetime their experience does not suffice to teach them to modify the
rules [TVESKYand KAHNEMAN,1974,p.1130J. In effect SKINNERprovides a
rather compelling model for how rules may be reinforced even when
they are quite incompatible with the evidence.
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Too much information to process, limited intellectual capabilities,
and values and em,otionsall curb the individual's ability to assessrules as
it limits their ability to evaluate options. It might be said that there are
many fewer rules than options and hence they are easier to 'process'.
However, the evaluation 'of most rules is much more difficult than that of
most options. Compare, for example, the dilemma of a chessplayer who
must decide how to proceed in a particular game and situation vs.
judging the rule, say, that one ought to develop one's forces (how long?)
before one attacks. Compare an executive who must determine at what
level to set the price of a specific product in a specific market, vs. to
determine which pricing policy is the most effective. We saw already the
difficulties professional economists have in coping with the latter question after many years of study and arguments.
Collectively provided rules by society, carried in the culture, are said
to be rational. As TODA[1980]puts it, much learning takes place on the
'species' level rather than that of the individual. One reasongiven is that
individuals -who are rational- created theserules. 'Norms and Institutions were presumably created by men... ...and there is no a priori
reasonto suppose these men were any the less rational when they were
constructing institutions than they were in their daily lives' [HEATH,1976,
p. 63]. For the viewpoint presented here, the samestatementis to be read
in the opposite way the author intended: Peopleare sub-rational in their
daily life; there is no a-priori reasonto believe the rules they promulgate
will be rational. As CROSS
[1983,p.17] writes: 'It is one thing to observe
that choice making in practice seems to be governed by simple and
inexpensive decision rules; it is quite another to show how those rules
that are in use have come to be selected in preference to aU of the other
simple rules that could have come to be used instead.' Also, however
rules are originally made, as we have seen, they tend to ossify and lag
behind changes in the environment.
Rules that organizations promulgate have been studied above. But
organizations (and institutions) themselvesare viewed as a mechanism
that limits the need to choose by providing a rational context for
'decisions. Traditionally, organizations, especially firms, have been
viewed by sociologists as social units that evolve in part in ways the
participants are unaware of or do not desire. Originally, an organization
mayhave been selectively designed rationally as an efficient means to
implement its particular goal or set of goals. But, organizational studies
509
510
AMITAI ETZIONI
show, as rules get entrenched and vested interests in them evolve, poiitics
grows, informal cultures arise, and the organization ceases to be an
efficient tool, if it ever was.
Evidence cited above seems to amply support this view. However, in
recent years, neoclassicists have formulated a 'new economics of organizations' drawing on a COASE[1937] article and WILLIAMSON'S[1975, 1985]
work. Accordingly, firms arise when it is efficient for them to arise; when
organizing production through the price mechanism (or market)
becomes too costly. Most of the writing along these lines is highly
deductive, ('Firms must have arisen, because.. .'). Empirical evidence is
very scant.
Some neoclassicists have extended the view of rules as efficient
guides from organizations to whole polities and even societies, and to
the march of history. NORTH[1981]for example argues that states are akin
to firms in a market: They seek to maximize revenue growth subject. to
various constraints (for example, technical knowledge). The rise and fall
of states is next studied in terms of changes in constraints. For example,
states will increase taxes up to the point the costs of the transaction
involved become too high or citizens' allegiance too low. And, states
develop various mechanisms (for example, tax farming) that reflects
efficient adaptation to the constraints they face. (For further discussion
and critical review of this approach, see MARCH and OLSEN[1984] and
DOUGLASand WILDAVSKY[1982].)
Finally, it has been argued that rules are rational due to evolutionary
selection. For example, HEINER [1983, p.586] writes: '... evolutionary
processes have long been interpreted as one of the key mechanisms
tending to produce optimizing behavior, or conversely, optimizing
behavior will predict the behavior patterns (or rules, AE) that will
survive in an evolutionary process... [HEINER, 1983, p.560]. And
'appropriately structured behavioral rules... will evolve to the extent
that selection processes quickly eliminate
poorly administered
behavior'. FIELD [1984] argues that there is a limited universe of possible
norms (or rules). Members of social groups, organizations, or polities
work out together -using game theory strategies -which rule to share
and which are the most efficient ones. See also ULLMANN-MARGALIT
[1977].
For the viewpoint advanced here, the notion of a state of nature, in
which there are individuals -fully formed and able to render decisions -
511
ON THOUGHTLESS RATIONALITY
before norms existed, is rather flawed, not only historically, but also as a
heuristic~.Individuals are not well formed unless they are members of
collectivities, which in turn contain nom1s. While there is little to be
gained by pursuing the question who was first at the creation of the
human realm, an I or a We, if the question must be broached, the
anthropological literature leaves little doubt that collectivities, within
which there was little or no individual identity awarenessand autonomous action, preceded the I's. Collectivities can hardly be the product of
rational individuals who preceded them.
Moreover, the conditions for evolutionary selections of rules often do
not exist. Among most organizations there often is no competitive
market; good schools do not shove poor schools out of business; poorly
run nursing homes are found next to well run ones and so on. Even the
existence of such competition among firms is historically rare and its
scope even in the West is much more limited than it is often acclaimed.
And, the environment to which firms and other organizations must
adapt, is largely composed of other firms like themselves, not a set
nature. We thus seefollowers of 'good' and 'bad' rules functioning right
next to one another in the same environment and reliance on rules is
hence no assurance that the rules are rational. Also, as SIMONargued,
evolution leads to local or sub-optimal selection; there is no reason to
suppose evolution leads to optimal rules [SIMON,1982,p. 53ft].
What holds for organizations, holds even more true for societies.
There obviously is no market for societies in which the efficient ones
drive out the others. Societies with extremely inefficient institutions or
regimes,such asthe Soviet mega-bureaucracy,survive for decades.Very
few societies evercollapse; instead, they change -not necessarilyfor thebetter!
-very gradually and slowly, and continue to be quite inefficient
even if they give up some of their most inefficient features, without
acquiring worse ones. Clearly evolution is not working on this level
either.
In short, the argument in favor of automatic or systemicallyprovided
rationality, one in which individuals may not think or deliberate yet act
rationally, is poorly supported by facts and is logically untenable. The
fact that it is continuously to be advanced is itself an indicatiqn that
rules, at least in the form of theorems, survive for other reasonsthan that
they are logical or empirically supported.
AMITAI ETZIONI
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SUMMARY
The recognition of the existenceof imperfectinformation in decision-makingand the
cognitive limitations of the humanmind put various assumptionsof the neoclassical
economic paradigm in doubt. Neoclassicaleconomistsresponded by arguing that
decision rules, or rules of thumb, canbe usedto render decisionwithout processing
information. Further, neoclassicistshave suggestedthat rational rules compete
againstand drive out irrational ones.This paperfocuseson the use of rules of thumb
and posits that the empirical evidenceaboutthe rationality of theserules is dubious
and that they logically cannotserveas a basis for rational conduct.
ZUSAMMENFASSUNG
Die Erkenntnis,dassbei Entscheidennicht vollstandige Infonnation vorhandenist,
sowie das Wissenum die kognitiven Beschrankungen
des menschlichenVerstandes
lassenan verschiedenenVoraussetzungen
des neoklassischenParadigmaszweifeln.
Neoklassische6konomen entgegnen,
dasssichEntscheidungsund Faustregelnauch
ohne vollstandige Infonnation anwendenlassen.Weiter gehensie davon aus,dass
rationale Regeln mit irrationalen Regelnkonkurrierenund letztere verdrangen.1m
Artikel geht es um das Anwendenyon Faustregeln.Es wird gezeigt,dassdie empirischeEvidenzfur die Rationalitatder Faustregelnzweifelhaftist und dassdieseRegeln
nicht als Grundlage fur rationalesBenehmendienenkonnen.
RESUME
La reconnaissancequ'il existedansIeprocessusde prendreune decisiondesinfonnations imparfaites et deslimites de l'esprit humain,a mis en doute plusieurs suppositions du schemaeconomiqueneo-classique.Les economistesneo-classiquesont
repondu en soutenantque par regle$de decision, ou procedesmecaniques,il est
possible,memesansopererl'infonnation, d'arriver a une decision. En outre,ils ont
suggereque les reglesrationnelles sont en competitionayec et repoussentles regles
irrationnelles. Cetteetudeseporte sur l'emploi desprocedesmecaniques,etconstate
quel'evidenceempiriquedelarationalitedecesreglesestdouteuseetqu'ils nepeuvent
logiquementpas servircommebasede conduite rationnelle.
514
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