We propose a dynamic efficiency wage model with learning by doing. By taking into account the change inthe stock of workers’ knowledge, firms set efficiency wages such that the effort–wage elasticity is not in general equal to one.

Heterogeneous firms facing demand-induced price fluctuations imperfectly compete for heterogeneous workers. It is shown that unemployment may arise in equilibrium because of the combination of uncertainty on product price and mismatch between workers’ skills and firms’ job requirements.

In developing countries, remittances and intra-family private transfers sent by household members who migrate to more developed countries constitute a fundamental source of income and capital accumulation. Then, it is important to understand the motives of migrants who decide to remit back to...

In this paper we present a model of economic growth where agents are characterized by social status concern behaviour. With respect to the literature, we show that social status seeking is not always desirable for economic growth. Specially, we prove that the impact of status seeking on growth...

This article deals with the role of labor unions in the privatization movement for developing countries. We consider the case of a public monopoly whose workers are members of a trade union and examine the consequences of its privatization. When the trade union and the rm bargain over the level...

This purpose of our paper is to explores the consequences of uncertainty on the remittances.These transfers are sent by a diaspora of emigrants who are motivated by altruism rather than pure self-interest. Migrants are assumed to care about the consumption of home-resident family members as well...

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...

In this paper, we examine the old-age security hypothesis according to which parents rear children because they expect the latter to care for them in their later years. In developing countries where there are no perfect capital markets, children are usually viewed as a potential source of income...

We analyze a situation where an antitrust authority delegates to an audit inspector the mission of gathering the sufficient information to condemn a cartel. The authority has two instruments at her disposal: rewarding the inspector with a proportion of the collected fine or providing him with...

Using the principal-agent- supervisor paradigm, this paper examines the occurrence of collusion in a setting where the principal has no information about the supervisor and the agent does not necessarily know the supervisor’s preferences. We formally prove the occurrence of collusion is more...