This paper shows that outsourcing of parts of the workforce in unionized firms leads to wage moderation and as long as the share of the outsourced workforce is not too large, this wage moderation effect on domestic employment outweighs the direct substitution effect so that domestic employment...

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...