Standard economics uses a one-dimensional concept of motivation. It assumes that people are perfectly rational and are solely motivated in a selfish way. This essay argues that people differ in their preferences with respect to pro-social orientations, that preferences are plastic and...

Understanding corruption is at the heart of treating the dysfunctionality of many countries' public sectors. Yet, most corruption research suffers from one common problem: There is no "objective" measure of public-sector corruption for a cross-section of countries. Most studies on the...