A simple proof of the Shapley-Folkman theorem

A simple proof of the Shapley-Folkman theorem
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Shapley-Folkman 定理的简单证明

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发表时间:
1993
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通讯作者:
Lin Zhou
Lin Zhou
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作者:
Lin Zhou

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Starr(1969)首先在文献中引入了Shapley-Folkman定理,该定理后来被证明在处理大型但有限代理的经济模型中的非凸性时非常重要。大多数已发表的Shapley-Folkman定理的证明使用Krein-Milman定理或Minkowski定理(Starr(1969),Artstein(1980)等)。[1]在这篇笔记中,我提供了一个简单的证明,它使用了线性代数中的以下事实。
Starr (1969) first introduced into the literature the Shapley-Folkman theorem, which later proves to be extremely important in dealing with non-convexity in economic models of large but finite agents. Most published proofs of the Shapley-Folkman theorem use the Krein-Milman theorem or the Minkowski theorem (Starr (1969), Artstein (1980), etc.). 1 In this note I provide a simple proof that uses the following fact from linear algebra.