We show in a simple model of entry with sunk cost, that a regulator prefers limiting the output, orcapacity, of the incumbent firm rather than imposing a “Minimum Quality Standard” in order tohelp the entrant to provide high quality. As a by-product, our analysis makes a contribution to...

Shaked and Sutton (1982) and Gelman and Salop (1983) are best remembered for their neat conclusions: a limited quality or limited capacity is an effective tool to relax competition and facilitate entry in a market. We aim at comparing the respective merits of these two strategic commitments. We...