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Levin College of Law

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Friday, March 1, 2013

On the Feedback Solutions of Differential Oligopoly Games with Hyperbolic Demand Curve and Capacity Accumulation1

Posted by D. Daniel Sokol

Luca Lambertini (Bologna) and Arsen Palestini (MEMOTEF, Sapienza University of Rome) have written On the Feedback Solutions of Differential Oligopoly Games with Hyperbolic Demand Curve and Capacity Accumulation1.

ABSTRACT: We characterise the subgame perfect equilibrium of a differential market game with hyperbolic inverse demand where firms are quantity-setters and accumulate capacity over time a la Ramsey. The related Hamilton-Jacobi-Bellman are solved in closed form both on infinite and on finite horizon setups and the optimal strategies are determined. Then, we analyse the feasibility of horizontal mergers in both static and dynamic settings, and find appropriate conditions for their profitability under both circumstances. Static profitability of a merger implies dynamic profitability of the same merger. It appears that such a demand structure makes mergers more likely to occur than they would on the basis of the standard linear inverse demand.

http://lawprofessors.typepad.com/antitrustprof_blog/2013/03/on-the-feedback-solutions-of-differential-oligopoly-games-with-hyperbolic-demand-curve-and-capacity-.html

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