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The Effects of Entry in Bilateral Oligopoly

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  • Alex Dickson

    (Department of Economics, University of Strathclyde, Glasgow G4 0GE, UK)

Abstract

The purpose of this paper is to study the effects of entry into the market for a single commodity in which both sellers and buyers are permitted to interact strategically. With the inclusion of an additional seller, the market is quasi-competitive: the price falls and volume of trade increases, as expected. However, contrary to the conventional wisdom, existing sellers’ payoffs may increase. The conditions under which entry by new sellers raises the equilibrium payoffs of existing sellers are derived. These depend in an intuitive way on the elasticity of a strategic analog of demand and the market share of existing sellers, and encompass entirely standard economic environments. Similar results are derived relating to the entry of additional buyers and the effects of entry on both sides of the market are investigated.

Suggested Citation

  • Alex Dickson, 2013. "The Effects of Entry in Bilateral Oligopoly," Games, MDPI, vol. 4(3), pages 1-21, June.
    • Handle: RePEc:gam:jgames:v:4:y:2013:i:3:p:283-303:d:26646
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    References listed on IDEAS

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    Cited by:

    1. Roy H Grieve, 2013. "An issue with own-rates: Keynes borrows from Sraffa , Sraffa criticises Keynes, and present-day commentators get hold of the wrong end of the stick," Working Papers 1319, University of Strathclyde Business School, Department of Economics.
    2. Ludovic A. Julien, 2015. "A note on market power in bilateral oligopoly," Economics Bulletin, AccessEcon, vol. 35(1), pages 400-406.
    3. Alex Dickson & Ian A. MacKenzie & Petros G. Sekeris, 2022. "Non‐linear revenue evaluation," Scottish Journal of Political Economy, Scottish Economic Society, vol. 69(5), pages 487-505, November.
    4. Alex Dickson & Simone Tonin, 2021. "An introduction to perfect and imperfect competition via bilateral oligopoly," Journal of Economics, Springer, vol. 133(2), pages 103-128, July.
    5. Cont, Walter & Porto, Guido, 2014. "Measuring the impact of a change in the price of Cashew received by exporters on farmgate prices and poverty in Guinea-Bissau," Policy Research Working Paper Series 7036, The World Bank.
    6. Alex Dickson, 2013. "On Cobb-Douglas Preferences in Bilateral Oligopoly," Recherches économiques de Louvain, De Boeck Université, vol. 79(4), pages 89-110.
    7. Luis C. Corchón, 2021. "Aggregative games," SERIEs: Journal of the Spanish Economic Association, Springer;Spanish Economic Association, vol. 12(1), pages 49-71, March.
    8. Petros G. Sekeris & Kevin Siqueira, 2021. "Payoff-Improving Competition: Games with Negative Externalities," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 58(3), pages 455-474, May.
    9. Alex Dickson & Ian A. MacKenzie & Petros G. Sekeris, 2019. "Non-linear revenue evaluation in oligopoly," Discussion Papers Series 611, School of Economics, University of Queensland, Australia.

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