This paper considers a class of two-player dynamic games in which each player controls a one-dimensional action variable, interpreted as a level of cooperation. The dynamics are due to an irreversibility constraint: neither player can ever reduce his cooperation level. Payoffs are decreasing in...

We examine a dynamic model of mutual insurance when households can also engage in self insurance by storage. We assume that there is no enforcement mechanism, so that any insurance is informal, and must be self-enforcing. We show that consumption allocations satisfy a modified Euler condition...

In this paper we analyse a model in which firms cannot pay discriminate based on year of entry to the firm, and argue that the wage dynamics are consistent with the empirical results of Beaudry and DiNardo (1991). Their results have been interpreted as supporting a model in which workers are ex...