Posts By hneth

Article: Heuristics — Tools for an uncertain world

I suppose it is tempting, if the only tool you have is a hammer,
to treat everything as if it were a nail.
Abraham H. Maslow (1966, p. 15f.)



Hansjörg Neth, Gerd Gigerenzer

Heuristics: Tools for an uncertain world

We distinguish between situations of risk, where all options, consequences, and probabilities are known, and situations of uncertainty, where they are not.  Probability theory and statistics are the best tools for deciding under risk but not under uncertainty, which characterizes most relevant problems that humans have to solve.  Uncertainty requires simple heuristics that are robust rather than optimal.

Paper: Rational task analysis (RTA)

Just as a scissors cannot cut paper without two blades,
a theory of thinking and problem solving cannot predict behavior
unless it encompasses both an analysis of the structure of task environments
and an analysis of the limits of rational adaptation to task requirements.
(Newell & Simon, 1972, p. 55)





Hansjörg Neth, Chris R. Sims, Wayne D. Gray

Rational task analysis: A methodology to benchmark bounded rationality

Abstract:  How can we study bounded rationality?  We answer this question by proposing rational task analysis (RTA)—a systematic approach that prevents experimental researchers from drawing premature conclusions regarding the (ir-)rationality of agents.  RTA is a methodology and perspective that is anchored in the notion of bounded rationality and aids in the unbiased interpretation of results and the design of more conclusive experimental paradigms. 

Paper: Foraging for alternative options

Should I stay or should I go now?
If I go there will be trouble,
and if I stay it will be double…
The Clash

Hansjörg Neth, Neele Engelmann, Ralf Mayrhofer

Foraging for alternatives: Ecological rationality in keeping options viable

Abstract:  Do we invest irrational amounts of effort into keeping options viable, or do we manage available and threatened options in an adaptive fashion? 

Artikel: Warum Controller auf Heuristiken setzen sollten

Hansjörg Neth

Warum Controller auf Heuristiken setzen sollten

Abstract:  Datenintensive und immer detailliertere Analysen sind nicht immer die richtige Antwort auf die zunehmende Komplexität in der Unternehmenssteuerung. Unter Unsicherheit sind einfache Heuristiken, nach denen wir Informationen selektieren oder ignorieren, oft zielführender. Der mündige Controller verharrt nicht in den rationalen Reflexen des Homo oeconomicus. Er entstammt der Spezies des Homo heuristicus.