) product variant is underprovided. A model, integrating entry into a perfectly competitive, vertically differentiated industry …

We use a dynamic oligopoly model of entry and exit with store-type differentiation to evaluate how entry regulations … demand, recover variable profits, and estimate entry costs and fixed costs by store type. Counterfactual policy experiments … show that welfare increases when competition is enhanced by lower entry costs. Protecting small stores by imposing …

The U.S. and EU Merger Guidelines strongly emphasize the relevance of the "ease of entry" argument in merger … evaluations. Up to now, very little is known empirically about how mergers affect entry and exit, and the resulting number of … dominated mergers. Interestingly, we also find that mergers foreclose potential entry in other product markets and reduce the …

by both high entry and high exit rates. …

We develop a model in which ex ante identical firms make endogenous entry and technology adoption decisions. We show … that this model is capable of matching the stylized facts in which entry and adoption are dispersed over time and that, in … occur and show that leapfrogging can induce reverse preemption (i.e., forward-looking incumbent firms delaying entry and …

We use a dynamic oligopoly model of entry and exit to evaluate how entry regulations affect profitability and market … stores in Sweden, we find that the average entry costs for small and large stores are 10 and 18 percent lower, respectively …, in markets with liberal compared with restrictive regulations. Counterfactual simulations show that lower entry costs in …

This paper estimates a dynamic, structural model of entry and exit in an oligopolistic industry and uses it to quantify …. Entry costs faced by potential entrants, fixed costs faced by incumbent producers, and the toughness of short-run price … the dentist industry allow the entry cost to differ for geographic markets that were designated as Health Professional …

We study patterns of entry and exit in the German interurban bus industry in the first three years after its … German cities - with the intensity of entry being dependent on the number of inhabitants, average income, the share of under …

-product firms. Aggregate product variety is determined by product variety choices of multi-product firms and entry/exit decisions of …

We study the effect of entry on the price distribution in the German retail gasoline market. Exploiting more than 700 … entries over five years in an event study design, we find that entry causes a persistent first-order stochastic shift in the … to 12% of stations' gross margins. Consumers with easy access to information on prices gain the most from entry. The …