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Optimal multivariate financial decision making
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DOI：10.1016/j.ejor.2022.09.017.png)
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摘要
En 中文
Agents who pursue optimal portfolio choice by optimizing a univariate objective (e.g., an expected utility) obtain optimal payoffs that are increasing with each other (situation of no diversification). This situation may lead to an undesirable level of systemic risk for society. A regulator may consider a global perspec-tive and aim to enforce diversification among the various portfolios by optimizing a suitable multivariate objective. We explain that optimal solutions satisfy a notion of multivariate cost-efficiency and provide an algorithm to obtain multivariate cost-efficient payoffs. We also assess the cost of diversification and provide the strategy that the regulator should pursue for obtaining the desired level of diversification.(c) 2022 Elsevier B.V. All rights reserved.
Keyword:
Decision analysis
Cost-efficiency
Multivariate preferences
Diversification
Systemic risk
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期刊
IF:
6
论文数:
2.2W
被引数:
6.4W
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