Are groups of people better able to minimize a collective loss if there is a collective target that must be reached or if every small contribution helps? In this paper we investigate whether cooperation in social dilemmas can be increased by structuring the problem as a step-level social dilemma...

Fast-and-frugal trees (FFTs) are simple algorithms that facilitate efficient and accurate decisions based on limited information. But despite their successful use in many applied domains, there is no widely available toolbox that allows anyone to easily create, visualize, and evaluate FFTs. We...

Proper scoring rules are scoring methods that incentivize honest reporting of subjective probabilities, where an agent strictly maximizes his expected score by reporting his true belief. The implicit assumption behind proper scoring rules is that agents are risk neutral. Such an assumption is...

Can numerical anchors influence people's judgments of their own recent behavior? We investigate this question in a series of six studies. In Study 1, subjects' judgments of how many anagrams they were given assimilated to numerical anchors. Subjects' judgments of how many math problems they...

This study investigates the psychometric characteristics of the General Decision-Making Scale (GDMS) on a sample of Slovak high-school and university students. Secondly, it addresses the relationship between decision-making styles and a) decision making competencies and b) mental health as...