Argentesi, Elena; Buccirossi, Paolo; Cervone, Roberto; … - In: International Journal of Industrial Organization 79 (2021), pp. 1-19
We study a merger between two Dutch supermarket chains to assess its effect on the depth as well as composition of assortment. We adopt a difference-in-differences strategy that exploits local variation in pre-merger competitive conditions and thus in the merger outcomes. To define our control...