This paper demonstrates that when an industry faces potential entry and this threat of entry constrains pre-entry prices, cost and conduct are not identified from the comparative statics of equilibrium. In such a setting, the identifying assumption behind the well-established technique of...

Consider a setting where threatened rather than actual import competition restrains a domestic oligopoly's prices. I show that not modeling the entry threat may underestimate the true degree of market power, as incumbents' blunted price responses to demand shocks resemble perfectly-competitive...