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Outsourcing with Identical Suppliers and Shortest-First Policy: A Laboratory Experiment

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  • Flip Klijn
  • Marc Vorsatz

Abstract

We study experimentally in the laboratory two 2-player games that mimic a decentralized decision-making situation in which firms repeatedly outsource production orders to multiple identical suppliers. The first game has a unique (inefficient) equilibrium in mixed strategies, while the second game has two (efficient) equilibria in pure strategies and an infinite number of (inefficient) equilibria in mixed strategies. In both games, the optimal social costs can also be obtained via dominated strategies. We find that only in the second game subjects manage to reach an efficient outcome more often when matched in fixed pairs than when randomly rematched each round. Surprisingly, this is because subjects coordinate on dominated strategies (and not an efficient pure strategy equilibrium). We show theoretically that preferences for efficiency cannot explain our experimental results. Inequality aversion, on the other hand, cannot be rejected.

Suggested Citation

  • Flip Klijn & Marc Vorsatz, 2015. "Outsourcing with Identical Suppliers and Shortest-First Policy: A Laboratory Experiment," Working Papers 846, Barcelona School of Economics.
    • Handle: RePEc:bge:wpaper:846
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    References listed on IDEAS

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    More about this item

    Keywords

    laboratory experiment; game theory; outsourcing; social costs; shortest-first policy; social preferences;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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