We evaluate the effects of outsourcing and wage solidarity on wage formation andequilibrium unemployment in a heterogeneous labour market, where wages are determinedby a monopoly labour union. We find that outsourcing promotes the wage dispersion betweenthe high-skilled and low-skilled workers...

We study both the various consequences and the incentives of outsourcing. We argue thatthe wage elasticity of labour demand is increasing as a function of the share of outsourcing,which is importantly a result consistent with existing empirical research...

A key question in labor market research is how the unemployment insurance system affects unemployment rates and labor market dynamics. We revisit this old question studying the German Hartz reforms. On average, lower separation rates explain 76% of declining unemployment after the reform, a fact...