TY - RPRT AU - Rablen, Matthew D. TI - Foundations of the Rank-Dependent Probability Weighting Function PY - 2019/Oct/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 12701 UR - https://www.iza.org/publications/dp12701 AB - The psychological basis for rank-dependent probability weighting, and for an inverse-S probability weighting function (PWF) in particular, has often been questioned. I examine the existence and shape of the PWF in a model allowing for optimism/pessimism over probability distributions and for loss averse/gain loving stochastic reference dependence. I give commonly observed shapes of PWF a psychological interpretation. In particular, I establish a deep connection between two of the most established phenomena in decisionmaking: loss aversion and the inverse-S PWF: the former is a pre- condition for the latter. KW - probability weighting KW - rank dependent expected utility KW - loss aversion KW - reference dependence KW - optimism KW - pessimism ER -