In this paper we consider a model of optimal efficiency and agglomeration economies .Given the presence of urban and social externalities and in the absence of corrective policy, the efficiency wage chosen in decentralized market economy is too high. Indeed, in her optimal choice of wage and...

The main purpose of this paper is to study the economic behavior of migrants under uncertainty . We show , in particular, that the impact of the probability of return remains ambiguous regarding both the savings and labor participation of the migrants , this theoritical finding seems to...

The purpose of this paper is to analyze the behavior and performance of migrants in the presence of an uncertain purchasing power parity.We show , in particular, that the impact of the probability of return remains ambiguous regarding both the savings and labor supply of the migrants , this...

In this paper, we examine the pure exchange motive for intergenerational transfers within the family. We consider a model where a parent offers a financial transfer in exchange for the care services of the child. Using a Stackelberg game, we study the optimal attention care-money contract...

In this paper, we examine the consequences of imperfect information on the pattern of transfers from parents to children. Drawing on the theory of mechanism design, we consider a model of family contract with two levels of effort. We prove that equal transfers among children are expected under...

We consider a model that extends the scope of social preferences of the families of the migrants. This extension allows us to show that if some poor families receive remittances and social culture affects the composition of their consumption, then in presence of strong social inequality, poor...