Garoupa, Nuno2018-05-242018-05-242003-12Garoupa, Nuno (2003). "Crime and social norms". Portuguese Economic Journal, 2(3):131-1441617-982X (print)1617-9838 (online)http://hdl.handle.net/10400.5/15482In this paper, we develop a general equilibrium model of crime. It is shown that law and norms are substitutes in achieving a stable equilibrium. Here we offer a new interpretation of different theories of social norms in the context of crime and deterrence. The law and economics theory is presented as an ‘opportunism- limiting’ approach to norms whereas the evolutionary theory is presented as an ‘opportunity cost’ approach.engCrimePunishmentNormsjournal article10.1007/s10258-003-0022-7