Die Bedeutung von Emotionen und Affekten bei ökonomischen Entscheidungen wird seit mehreren Jahren in der ökonomischen Literatur diskutiert (z. B. Rabin, 1998). Eine Erklärung der empirischen Evidenz in diesem Bereich, die über eine bloß phänomenologische Ebene hinausgeht, verlangt eine...

In a less widely known contribution, Béla Martos (1966, Hungarian Academy of Sciences) introduced a generalized notion of concavity that is closely related to what is nowadays known as r-concavity in the operations research literature, and that is identical to what is nowadays known as...

Large deviations for fat tailed distributions, i.e. those that decay slower than exponential, are not only relatively likely, but they also occur in a rather peculiar way where a finite fraction of the whole sample deviation is concentrated on a single variable. The regime of large deviations is...