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Collusion with private and aggregate information

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  • Jin, Jim Y.

Abstract

This paper considers three linear asymmetric oligopoly models with (i) a representative consumer, (ii) horizontal differentiation and (iii) vertical differentiation. We show that firms could maximize the joint-profit only based on private and aggregate information. They can choose the “correct“ colluding prices without knowing the demand or profit function. The collusive outcome is a natural focal point despite firms are asymmetric. Collusion can be incentive compatible even though individual actions (prices) are not observed.

Suggested Citation

  • Jin, Jim Y., 1999. "Collusion with private and aggregate information," Discussion Papers, Research Unit: Market Dynamics FS IV 99-10, WZB Berlin Social Science Center.
    • Handle: RePEc:zbw:wzbmdy:fsiv9910
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