<title>Abstract</title> The Specific Factors model is an excellent learning tool. It provides insights into the meaning of economic efficiency, how complex economies simultaneously determine prices and quantities (and that it is relative prices that matter), and how changes in demand conditions or technology...

The academic debate over the deterrent effect of capital punishment has intensified again with a major policy outcome at stake. About two dozen empirical studies have recently emerged that explore the issue. Donohue and Wolfers (2005) claim to have examined the recent studies and shown the...