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Economics

Selected Works

Martijn A. Han

Collusion

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Full-Text Articles in Law

Cartelization Through Buyer Groups, Chris Doyle, Martijn Han Apr 2014

Cartelization Through Buyer Groups, Chris Doyle, Martijn Han

Martijn A. Han

Retailers may enjoy stable cartel rents in their output market through the formation of a buyer group in their input market. A buyer group allows retailers to commit credibly to increased input prices, which serve to reduce combined final output to the monopoly level; increased input costs are then refunded from suppliers to retailers through slotting allowances or rebates. The stability of such an ‘implied cartel’ depends on the retailers’ incentives to source their inputs secretly from a supplier outside of the buyer group arrangement at lower input prices. Cheating is limited if retailers sign exclusive dealing or minimum purchase …


Strategic Delegation Improves Cartel Stability, Martijn Han Dec 2010

Strategic Delegation Improves Cartel Stability, Martijn Han

Martijn A. Han

Fershtman and Judd (1987) and Sklivas (1987) show that strategic delegation reduces firm profits in the one-shot Cournot game. Allowing for infinitely repeated interaction, strategic delegation can increase firm profits as it improves cartel stability.


Short-Term Managerial Contracts And Cartels, Martijn Han Dec 2010

Short-Term Managerial Contracts And Cartels, Martijn Han

Martijn A. Han

This paper shows how a series of commonly observed short-term CEO employment contracts can improve cartel stability compared to a long-term employment contract. When a manager's short-term appointment is renewed if and only if the firm hits a certain profit target, then (i) defection from collusion results in superior firm performance, thus reducing the chance of being fired, while (ii) future punishment results in inferior firm performance, thus increasing the chance of being fired in the future. The introduction of this re-employment tradeoff intertwines with the usual monetary tradeoff and can improve cartel stability. Studying the impact of fixed versus …