The natural frequency hypothesis and evolutionary arguments

Yuichi Amitani ()

Mind & Society: Cognitive Studies in Economics and Social Sciences, 2015, vol. 14, issue 1, 19 pages

Abstract: In the rationality debate, Gerd Gigerenzer and his colleagues have argued that human’s apparent inability to follow probabilistic principles does not mean our irrationality, because we can do probabilistic reasoning successfully if probability information is given in frequencies, not percentages (the natural frequency hypothesis). They also offered an evolutionary argument to this hypothesis, according to which using frequencies was evolutionarily more advantageous to our hominin ancestors than using percentages, and this is why we can reason correctly about probabilities in the frequency format. This paper offers a critical review of this evolutionary argument. I show that there are reasons to believe using the frequency format was not more adaptive than using the standard (percentage) format. I also argue that there is a plausible alternative explanation (the nested-sets hypothesis) for the improved test performances of experimental subjects—one of Gigerenzer’s key explananda—which undermines the need to postulate mental mechanisms for probabilistic reasoning tuned to the frequency format. The explanatory thrust of the natural frequency hypothesis is much less significant than its advocates assume. Copyright Springer-Verlag Berlin Heidelberg 2015

Keywords: Probabilistic reasoning; Fast and frugal heuristics; Ecological rationality; Evolutionary psychology (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1007/s11299-014-0155-7

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