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Optimal Delegation Under Unknown Bias: The Role of Concavity

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  • Noam Tanner

Abstract

A principal is uncertain of an agent's preferences and cannot provide monetary transfers. The principal, however, does control the discretion granted to the agent. In this paper, we provide a simple characterization of when it is optimal for the principal to screen by offering different terms of discretion to the agent. When the principal's utility is sufficiently concave, it is optimal for the principal to pool and to offer all agents the same discretion. Thus, for any number of agents and any distribution over agent preferences, the optimal contract is simple: the principal sets a cap and forbids actions above this cap (interval delegation). For less concave preferences, it is optimal for the principal to screen. The principal benefits by providing agents a choice between interval delegation and gap delegation, which allows for more extreme actions but prohibits intermediate actions. Moreover, we provide new intuition for the optimality of interval delegation when the principal knows the agent's preferences: the payoff distributions generated by sets containing gaps are mean-preserving spreads of those generated by intervals.

Suggested Citation

  • Noam Tanner, 2018. "Optimal Delegation Under Unknown Bias: The Role of Concavity," Supervisory Research and Analysis Working Papers RPA 18-1, Federal Reserve Bank of Boston.
    • Handle: RePEc:fip:fedbqu:rpa18-1
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    References listed on IDEAS

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    Cited by:

    1. Alex Frankel, 2021. "Selecting Applicants," Econometrica, Econometric Society, vol. 89(2), pages 615-645, March.

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    More about this item

    Keywords

    Optimal delegation; Sequential screening; Dynamic mechanism design; Non-transferable utility;
    All these keywords.

    JEL classification:

    • D02 - Microeconomics - - General - - - Institutions: Design, Formation, Operations, and Impact
    • D20 - Microeconomics - - Production and Organizations - - - General
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D86 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Economics of Contract Law

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