Inference on Noncooperative Entry Deterrence
2023・02
要約
This study empirically investigates strategic entry-deterrence behavior under oligopolistic com-petition. I develop a structural econometric model describing incumbents’ entry-deterrence behavior based on the framework of Gilbert and Vives (1986, Review of Economic Studies). I show theoretically that incumbents’ marginal costs are interval-identified under the assumption that incumbents deter entry in equilibrium. The structural model is estimated using data from the Japanese aluminum smelting industry. A Vuong-type model selection test utilizing an instrument demonstrates that the entry-deterrence model is more consistent with the data than is an ordinary Cournot competition model without entry threats.
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