Ma. Anderson et Ah. Goldsmith, RATIONALITY IN THE MINDS EYE - AN ALTERNATIVE TEST OF RATIONAL-EXPECTATIONS USING SUBJECTIVE FORECAST AND EVALUATION DATA, Journal of economic psychology, 15(3), 1994, pp. 379-403
The purpose of this paper is to examine if business managers' forecast
s are rational in a constructionist sense. Adherents to constructivism
believe that human senses do not convey ''real reality'', but rather
a set of experiences that are conditioned by beliefs and differences i
n innate cognitive attributes to yield a constructed and inherently su
bjective perception. We examine whether managers' forecasts, when meas
ured against their own perceptions of reality, are rational. The Confe
rence Board provides a data base that asks managers for a subjective p
rediction of the future, and a subjective evaluation of the past. Both
the forecast and the evaluation are subjective, conceived in the mind
of the forecaster. If rational expectations is a theory that accurate
ly represents the decision process, then it should be reflected in dat
a where the forecaster computes not only the prediction, but also the
value of the parameter that was predicted. Thus, this data allows fore
casts to be tested for rationality using managers' own perceptions as
the basis for judgement. If rational expectations is an accurate repre
sentation of how economic actors form forecasts, then a mind's eye eva
luation should show evidence of this rationality. Yet, though the mana
gers generate both the forecast and the evaluation, they failed four o
f the five traditional tests for rationality.