Randomisation with moral hazard: a path to existence of optimal contracts

Fuente: arXiv
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Autori principali: Kršek, Daniel, Possamaï, Dylan
Natura: Preprint
Pubblicazione: 2023
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author Kršek, Daniel
Possamaï, Dylan
author_facet Kršek, Daniel
Possamaï, Dylan
contents We study a generic principal-agent problem in continuous time on a finite time horizon. We introduce a framework in which the agent is allowed to employ measure-valued controls and characterise the continuation utility as a solution to a specific form of a backward stochastic differential equation driven by a martingale measure. We leverage this characterisation to prove that, under appropriate conditions, an optimal solution to the principal's problem exists, even when constraints on the contract are imposed. In doing so, we employ compactification techniques and, as a result, circumvent the typical challenge of showing well-posedness for a degenerate partial differential equation with potential boundary conditions, where regularity problems often arise.
format Preprint
id arxiv_https___arxiv_org_abs_2311_13278
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Randomisation with moral hazard: a path to existence of optimal contracts
Kršek, Daniel
Possamaï, Dylan
Probability
General Economics
Economics
Optimization and Control
We study a generic principal-agent problem in continuous time on a finite time horizon. We introduce a framework in which the agent is allowed to employ measure-valued controls and characterise the continuation utility as a solution to a specific form of a backward stochastic differential equation driven by a martingale measure. We leverage this characterisation to prove that, under appropriate conditions, an optimal solution to the principal's problem exists, even when constraints on the contract are imposed. In doing so, we employ compactification techniques and, as a result, circumvent the typical challenge of showing well-posedness for a degenerate partial differential equation with potential boundary conditions, where regularity problems often arise.
title Randomisation with moral hazard: a path to existence of optimal contracts
topic Probability
General Economics
Economics
Optimization and Control
url https://arxiv.org/abs/2311.13278