The shirking model of efficiency wages has been thought to imply that monitoring and pay are substitute instruments for motivating workers. We demonstrate that this result is not generally true. As monitoring becomes cheaper, a given effort level will be implemented with more monitoring and less...

This paper considers the opitmal incentives for motivating a risk neutral, wealth constrained agent. In particular, monitoring and pay are shown to be complementary instruments under very general conditions, extending earlier results by Allgulin and Ellingsen (1998). The paper also proves that...

If efficiency wages really exist, as proposed by Shapiro and Stiglitz (1984), why do we not see more job purchases? A conventional answer is that with multiple periods, low pay in initial periods serves as an implicit payment (Lazear (1981)). This paper presents a formal analysis of this issue....