This paper analyses the impact of opening clauses in German collective bargaining agreements (CBAs) on job flows. Opening clauses should provide firms with more flexibility in economic crises. Therefore, firms operating under a CBA with opening clauses are expected to have lower job turnover, in...

We present a model that integrates the discrete working time choice of heterogenous households into a general equilibrium setting where wages are determined by sectoral bargaining between firms and trade unions. The model is calibrated to German micro and macro data. We then use it to analyse...