Economics - Psychology's Neglected Branch

"It is impossible to describe any human action ifit - but they do so mostly in order to redistribute
one does not refer to the meaning the actorincome and rarely for self-enrichment.Economics
sees in the stimulus as well as in the end hisalso failed until recently to account for the role of
response is aiming at." --Ludwig voninnovation in growth and development. The
MisesEconomics - to the great dismay ofdiscipline often ignored the specific nature of
economists - is merely a branch of psychology. Itknowledge industries (where returns increase
deals with individual behaviour and with massrather than diminish and network effects prevail).
behaviour. Many of its practitioners sought toThus, current economic thinking is woefully
disguise its nature as a social science by applyinginadequate to deal with information monopolies
complex mathematics where common sense and(such as Microsoft), path dependence, and
direct experimentation would have yielded farpervasive externalities.Classic cost/benefit
better results.The outcome has been ananalyses fail to tackle very long term investment
embarrassing divorce between economic theoryhorizons (i.e., periods). Their underlying assumption
and its subjects.The economic actor is assumed- the opportunity cost of delayed consumption -
to be constantly engaged in the rational pursuit offails when applied beyond the investor's useful
self interest. This is not a realistic model - merelyeconomic life expectancy. People care less about
a useful approximation. According to this lattertheir grandchildren's future than about their own.
day - rational - version of the dismal science,This is because predictions concerned with the far
people refrain from repeating their mistakesfuture are highly uncertain and investors refuse to
systematically. They seek to optimize theirbase current decisions on fuzzy "what ifs".This is a
preferences. Altruism can be such a preference,problem because many current investments, such
as well.Still, many people are non-rational or onlyas the fight against global warming, are likely to
nearly rational in certain situations. And theyield results only decades hence. There is no
definition of "self-interest" as the pursuit of theeffective method of cost/benefit analysis
fulfillment of preferences is a tautology.Theapplicable to such time horizons.How are
theory fails to predict important phenomena suchconsumer choices influenced by advertising and by
as "strong reciprocity" - the propensity topricing? No one seems to have a clear answer.
"irrationally" sacrifice resources to rewardAdvertising is concerned with the dissemination of
forthcoming collaborators and punish free-riders. Itinformation. Yet it is also a signal sent to
even fails to account for simpler forms ofconsumers that a certain product is useful and
apparent selflessness, such as reciprocal altruismqualitative and that the advertiser's stability,
(motivated by hopes of reciprocal benevolentlongevity, and profitability are secure. Advertising
treatment in the future).Even the authoritativecommunicates a long term commitment to a
and mainstream 1995 "Handbook of Experimentalwinning product by a firm with deep pockets. This
Economics", by John Hagel and Alvin Roth (eds.)is why patrons react to the level of visual
admits that people do not behave in accordanceexposure to advertising - regardless of its
with the predictions of basic economic theories,content.Humans may be too multi-dimensional and
such as the standard theory of utility and thehyper-complex to be usefully captured by
theory of general equilibrium. Irritatingly foreconometric models. These either lack predictive
economists, people change their preferencespowers or lapse into logical fallacies, such as the
mysteriously and irrationally. This is called"omitted variable bias" or "reverse causality". The
"preference reversals".Moreover, people'sformer is concerned with important variables
preferences, as evidenced by their choices andunaccounted for - the latter with reciprocal
decisions in carefully controlled experiments, arecausation, when every cause is also caused by its
inconsistent. They tend to lose control of theirown effect.These are symptoms of an
actions or procrastinate because they placeall-pervasive malaise. Economists are simply not
greater importance (i.e., greater "weight") on thesure what precisely constitutes their subject
present and the near future than on the farmatter. Is economics about the construction and
future. This makes most people both irrational andtesting of models in accordance with certain basic
unpredictable.Either one cannot design anassumptions? Or should it revolve around the
experiment to rigorously and validly testmining of data for emerging patterns, rules, and
theorems and conjectures in economics - or"laws"?On the one hand, patterns based on limited
something is very flawed with the intellectual pillars- or, worse, non-recurrent - sets of data form a
and models of this field.Neo-classical economicsquestionable foundation for any kind of "science".
has failed on several fronts simultaneously. ThisOn the other hand, models based on assumptions
multiple failure led to despair and theare also in doubt because they are bound to be
re-examination of basic precepts andreplaced by new models with new, hopefully
tenets.Consider this sample of outstandingimproved, assumptions.One way around this
issues:Unlike other economic actors and agents,apparent quagmire is to put human cognition (i.e.,
governments are accorded a special status andpsychology) at the heart of economics. Assuming
receive special treatment in economic theory.that being human is an immutable and knowable
Government is alternately cast as a saint, seekingconstant - it should be amenable to scientific
to selflessly maximize social welfare - or as thetreatment. "Prospect theory", "bounded rationality
villain, seeking to perpetuate and increase itstheories", and the study of "hindsight bias" as well
power ruthlessly, as per public choice theories.Bothas other cognitive deficiencies are the outcomes
views are caricatures of reality. Governmentsof this approach.
indeed seek to perpetuate their clout and increase