We propose a model where imperfect matching between firms and workers on local labor markets leads to spatial agglomeration. We show that the occurrence of spatial agglomeration depends on initial size differences in terms of both number of workers and firms. We analyse the effect of different...

The efficiency defence was long delayed in the European merger control due to costly implementation issues. In this paper we argue that the upstream consequences of the efficiency defence should equally be considered, namely the improvement of the distribution of notified mergers through the...