The possibility of buying out an entrant has an import ant effect on entry deterrence. Entrants can blackmail the incumbent by threatening to keep prices low, and buyout can make entry profitab le which otherwise would not be. In particular, the entry-deterrence policy of excess capacity to...

Consider a Bertrand model in which each firm may be inactive with aknown probability, so the number of active firms is uncertain. Thissimple model has a mixed-strategy equilibrium in which industryprofits are positive and decline with the number of firms, the samefeatures which make the Cournot...