In many situations legal systems use ambiguous standards and moral language in instructing people to behave. In the realm of the common law, much of this ambiguous, morally inflected legal component is associated with “equity.” In civil law systems, something similar goes under the banner of...

In this study we introduce a new stochastic choice rule that categorizes objects in order to simplify the choice procedure. At any given trial, the decision maker deliberately randomizes over mental categories and chooses the best item according to her utility function within the realized...

Nudge is a concept of policy intervention that originates in Thaler and Sunstein's (2008) popular eponymous book. Following their own hints, we distinguish three properties of nudge interventions: they redirect individual choices by only slightly altering choice conditions (here nudge 1), they...