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Improved Approximation Algorithms for Combinatorial Contracts with Type Constraints

delete2026-01-01
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PRE
AI
Q
Qinqin Gong
C
Chunlin Hao
D
Donglei Du
R
Ruiqi Yang *
DOI:10.1007/978-981-95-0215-8_1delete
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Abstract

Abstract

En 中文
We introduce a multi-agent combinatorial contract design problem with type constraints. A principal assigns a task to agents divided into.k types. Agents of each type decide whether to exert costly effort. The principal's reward is a non-negative, monotone, and submodular function of the agents exerting effort across all types. Extending prior work by Dutting et al. (2023) on the single-agent-per-type (k = n) case, we allow multiple agents per type, where.n denotes the number of agents. We formulate the contract design as a bi-level optimization problem, which we transform into a single-level subset selection problem using backward induction. We provide a parameterized approximation algorithm using value and demand query oracles, achieving approximation ratios approximately 5 times better than Dutting et al. (2023) under suitable parameter settings.
Keywords:
Combinatorial contracts
Principal-agent model
Approximation algorithms
Submodularity

Journal

C
COMPUTING AND COMBINATORICS, COCOON 2025, PT I
IF:
0
Papers:
24
Citations:
0

Organization

B
beijing university of technology
Scholars:
5.2K
Papers: 1.7K
Citations: 0
U
University of New Brunswick
Scholars:
4.0K
Papers: 4.2K
Citations: 6.3K