We study the effect of 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 the merger’s effects …, controlling for selection on observables through a matching procedure when defining our control group. We show that the merger led …

The seminal paper by Salant, Switzer and Reynolds (1983) showed that merger in a standard Cournot framework with linear … demand and linear costs is not profitable unless a large majority of the firms are involved in the merger. However, many … recurring to cost savings of merger. Firms interact with each other, with customers, suppliers, their owners, and with …