This paper examines the effect of competition on the irreversible investment decisions under uncertainty as a generalization of the real option approach. We examine this issue with reference to an industry where each firm has only one investment opportunity which is completely irreversible and...

In a continuous-time framework we study the technology and investment choice problem of a continuous co-digestion biogas plant dealing with randomly fluctuating relative convenience of input factor costs. Input factors enter into the productive process together mixed according to a given initial...

Recent European legislation on immigration has revealed a particular paradox on migration policies. On the one hand, the trend of recent legislation points to the increasing closure of frontiers (OECD 1999, 2001,2004), trying to limit the immigrants' stock. On the other hand, there is an...