Cooperation has been vital to the evolution of all living things, including single-celled organisms (Velicer, 2005, 2003; Velicer and Stredwick, 2002; Crespi, 2001; Velicer et al., 2000; Boorman and Levitt, 1980), fish (Brosnan et al., 2003; Dugatkin, 1991, 1992, 1997; Milinski, 1987), birds (Brown and Brown, 1996; Faaborg...

Moral behavior and concern for others are sometimes argued to set humans apart from other species. However, there is some evidence that humans are not the only animal species to possess these characteristics. Work from behavioral biology and neuroscience has indicated that some of these traits...

Increasing penalty structures for repeat offenses are ubiquitous in penal codes, despite little empirical or theoretical support. Multi-period models of criminal enforcement based on the standard economic approach of Becker (1968) generally find that the optimal penalty structure is either flat...

Decreasing social sensitivity (i.e., the ability of a person to perceive, understand, and respect the feelings and viewpoints of others), has been shown to facilitate selfish behavior. This is not only true for exogenous changes in social sensitivity, but also for social sensitivity influenced...

Sanctions are a common method to discourage free-riding in the provision of public goods. However, we can usually only sanction those who are detected performing the bad act of free-riding. There has been considerable research on the type of sanctions imposed, but this research almost always...

Sanctions are a common method to discourage free-riding in the provision of public goods. However, we can usually only sanction those who are detected performing the bad act of free-riding. There has been considerable research on the type of sanctions imposed, but this research almost always...

This paper measures the relative efficiency of 50 municipal police departments in New York State using an output-oriented data envelopment analysis programming model and finds that 30 departments are efficient, while 20 could improve their efficiency. Adoption of best practice methods in the 20...