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Do firms choose overcapacity or undercapacity in a vertical structure?

Kangsik Choi and DongJoon Lee

Managerial and Decision Economics, 2020, vol. 41, issue 5, 839-847

Abstract: This study investigates capacity choice in a vertical structure in which each downstream firm makes its capacity decision, then a monopolistic upstream firm proposes the input price or two‐part tariff contract. Finally, each downstream firm chooses its output (or price). Contrary to the conventional wisdom that both firms hold excess capacity in an Cournot competition, we find that each downstream firm always chooses undercapacity regardless of both the nature of goods and the competition modes. Second, we also show that capacity efficiency is higher under Cournot competition than under Bertrand competition. Third, even though there are double marginalization distortion and rent‐extracting effect, we can achieve the monopoly equilibrium of the vertically integrated firm though two‐part tariff contract.

Date: 2020
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