摘要翻译:
考虑了存在市场冲击时的投资组合优化问题,推导了最优平仓策略。本文详细讨论了线性市场冲击情况下,在期望缺口(ES)下寻找最优投资组合的问题。我们表明,一旦考虑到市场影响,通常的优化问题的正则化版本自然出现。在大投资组合规模的限制下,我们刻画了最优清算策略的典型行为,并说明了在这种情况下,市场冲击是如何消除ES的不稳定性的。
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英文标题:
《Optimal Liquidation Strategies Regularize Portfolio Selection》
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作者:
Fabio Caccioli, Susanne Still, Matteo Marsili and Imre Kondor
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最新提交年份:
2011
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Portfolio Management 项目组合管理
分类描述:Security selection and optimization, capital allocation, investment strategies and performance measurement
证券选择与优化、资本配置、投资策略与绩效评价
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一级分类:Quantitative Finance 数量金融学
二级分类:Risk Management 风险管理
分类描述:Measurement and management of financial risks in trading, banking, insurance, corporate and other applications
衡量和管理贸易、银行、保险、企业和其他应用中的金融风险
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英文摘要:
We consider the problem of portfolio optimization in the presence of market impact, and derive optimal liquidation strategies. We discuss in detail the problem of finding the optimal portfolio under Expected Shortfall (ES) in the case of linear market impact. We show that, once market impact is taken into account, a regularized version of the usual optimization problem naturally emerges. We characterize the typical behavior of the optimal liquidation strategies, in the limit of large portfolio sizes, and show how the market impact removes the instability of ES in this context.
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PDF链接:
https://arxiv.org/pdf/1004.4169


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