Existence of Optimal Mechanisms for Selling Multiple Goods: An Elementary Proof
Computer Science and Game Theory
2026-01-07 v1 Theoretical Economics
Abstract
We provide an elementary proof that revenue-maximizing mechanisms exist in multi-parameter settings whenever the distribution of valuations has finite expectation.
Keywords
Cite
@article{arxiv.2601.01607,
title = {Existence of Optimal Mechanisms for Selling Multiple Goods: An Elementary Proof},
author = {Sergiu Hart and Noam Nisan},
journal= {arXiv preprint arXiv:2601.01607},
year = {2026}
}