Firms are the field of several strategic interactions that standard neo-classical analysis often ignores. Such strategic considerations concern relations between capital owner and labour, relations between marginal employees and incumbents and more generally all relations between different...

We analyse the consequences of an increase in the supply of highly educated workers on relative and real wages in a search model where wages are set by Nash-bargaining. The key insight is that an increase in the supply of highly educated workers improves the firms’ outside option. As a...

Unlike many other contracts, employment contracts are subject to various external administrative procedures governing separations, ranging from compulsory severance payments and advance notice periods (usually seniority based), to collective layoff procedures (usually depending on the firm's...

This Paper suggests that in the US context, workers tend to invest in general human capital especially since they face little employment protection and low unemployment benefits, while the European model (generous benefits and higher duration of jobs) favours specific human capital investments....

The spatial dispersion of economic agents is an immediate determinant of informational imperfections. We investigate how this dispersion creates search frictions and thus rationing. For that, we develop a model of local labour markets in which workers' search efficiency is negatively affected by...

Assuming that job search efficiency decreases with distance to jobs, workers’ location in a city depends on spatial elements such as commuting costs and land prices and on labour elements such as wages and the matching technology. In the absence of moving costs, we show that there exists a...

The sustainability of Welfare States requires high employment/high participation to raise the tax base and avoid distortions. To analyse labour market participation decisions in a world with market frictions, we propose and solve a three-state macro model of the labour market. We show that...

The unemployment rate in France is roughly 6 percentage points higher for African immigrants than for natives. In the US the unemployment rate is approximately 9 percentage points higher for blacks than for whites. Commute time data indicates that minorities face longer commute times to work,...

Labour market frictions are not the only possible source of high unemployment. Credit market imperfections, driven by microeconomic frictions and influenced by macroeconomic factors, could also be to blame. To develop this idea in a simple and tractable macroeconomic model, we treat credit and...

Countries react differently to large labour reallocation shocks. Some minimize the costs by adapting rapidly, while others suffer long periods of costly adjustment, typically high and persistent unemployment and temporary output losses. We argue that the existence of large amounts of specific...