Much of Africa has been ravaged by the AIDS epidemic. There, heterosexual contactis the primary mode of transmission for the HIV virus. Even when access to condomsis good and their price low, a large fraction of young Africans continue to engage inunprotected sex. In this paper, we propose a...

In recent economic literature, there has been an increasing interest in modellingpreferences as endogenous. Some arguments go along the lines that institutions shapepreferences. This paper suggests that adopting a more substantive concept ofpreferences furthers our understanding of how they...

The purpose of this article is to analyse the way economists interested in social andeconomic evolution cite, mention or refer to Darwin. We focus on the attitude ofeconomists towards Darwin’s theory of social evolution – an issue he considered ascentral to his theory. We show that...

In spite of its checkered intellectual history, and in spite of the myriad proposals ofalternative models that claim to account for the broad range of human behavior and todispense with the need for selection above the organism level, a multilevel selectionframework remains the only coherent...

The Global Leadership and Organizational Behavior Effectiveness (GLOBE) study is currentlythe most comprehensive research endeavor that set out to answer – amongst others – whether ornot charismatic/value-based leadership is universally seen to contribute to effective leadership.The results...

Volunteering constitutes one of the most important pro-social activities. FollowingAristotle, helping others is the way to higher individual well-being. This view contrasts with theselfish utility maximizer who avoids costs from helping others. The two rival views are studiedempirically. We find...

The end of the lockup period of initial public offerings generally constitutes the first time corporateinsiders sell significant numbers of shares on the market. I test the hypothesis that shareholderspressure analysts to support the share price until the end of the lockup period.[...]

...In this paper, we tackle all these difficulties by conducting a full geomatrical analysis of the comparative statics of general models...

Behavoiral finance as a subdiscipline of behavorial economics is finance incorporating findings from psychology and sociology into its theories.