and search-matching models. For that, we study a policy that consists in decreasing the urban unemployment benefit. In an … efficiency wage model, we find that there is no Todaro paradox while this is not always true in a search-matching model since a … decrease in the urban unemployment benefit can increase both urban employment and unemployment. -- efficiency wages ; search-matching …

of unemployed workers: the socially optimal number of unemployed workers depends both of matching externalities and on … (which corresponds to the standard matching model) and a mixed of non-spatial and spatial elements, the first element …

is harmful not because workers have low information about jobs (search) or because commuting costs are too high but …

We propose a spatial search-matching model where both job creation and job destruction are endogenous. Workers are ex …

We develop a standard search-matching model in which mobility costs are so high that it is too costly for workers to …

country and where information asymmetries are more severe for immigrants than for natives. There are two stages. In the first … second stage, firms offer wages to the immigrant and native workers who are in the country. Because of imperfect information …. -- asymmetric information ; screening ; self-selection of migrants ; skill-biased migration ; wage differentials …