This paper examines the reflexive interplay between individual decisions and social forces to analyze the evolution of cooperation in the presence of "multi-directedness," whereby people's preferences depend on their psychological motives. People have access to multiple, discrete motives....

This paper analyzes how private decisions and public policies are shaped by personal and societal preferences ("values"), material or other explicit incentives ("laws") and social sanctions or rewards ("norms"). It first examines how honor, stigma and social norms arise from individuals'...

Are bans effective at lowering child labor and increasing school attendance and, if so, do these effects lead to positive outcomes later in life? This paper seeks to answer these questions by examining the effect of a 1998 Brazilian law that increased the minimum employment age from 14 to 16. To...