Optimal Robust Contract Design

Fuente: arXiv
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Main Authors: Peng, Bo, Tang, Zhihao Gavin
Format: Preprint
Published: 2024
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_version_ 1866909225431597056
author Peng, Bo
Tang, Zhihao Gavin
author_facet Peng, Bo
Tang, Zhihao Gavin
contents We consider the robust contract design problem when the principal only has limited information about the actions the agent can take. The principal evaluates a contract according to its worst-case performance caused by the uncertain action space. Carroll (AER 2015) showed that a linear contract is optimal among deterministic contracts. Recently, Kambhampati (JET 2023) showed that the principal's payoff can be strictly increased via randomization over linear contracts. In this paper, we characterize the optimal randomized contract, which remains linear and admits a closed form of its cumulative density function. The advantage of randomized contracts over deterministic contracts can be arbitrarily large even when the principal knows only one non-trivial action of the agent. Furthermore, our result generalizes to the model of contracting with teams, by Dai and Toikka (Econometrica 2022).
format Preprint
id arxiv_https___arxiv_org_abs_2406_11528
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Optimal Robust Contract Design
Peng, Bo
Tang, Zhihao Gavin
Theoretical Economics
Computer Science and Game Theory
We consider the robust contract design problem when the principal only has limited information about the actions the agent can take. The principal evaluates a contract according to its worst-case performance caused by the uncertain action space. Carroll (AER 2015) showed that a linear contract is optimal among deterministic contracts. Recently, Kambhampati (JET 2023) showed that the principal's payoff can be strictly increased via randomization over linear contracts. In this paper, we characterize the optimal randomized contract, which remains linear and admits a closed form of its cumulative density function. The advantage of randomized contracts over deterministic contracts can be arbitrarily large even when the principal knows only one non-trivial action of the agent. Furthermore, our result generalizes to the model of contracting with teams, by Dai and Toikka (Econometrica 2022).
title Optimal Robust Contract Design
topic Theoretical Economics
Computer Science and Game Theory
url https://arxiv.org/abs/2406.11528