arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.15128q-fin.RMq-fin.CPq-fin.ST
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长期Financial Derivatives的深度对冲

Deep Hedging of Long-Term Financial Derivatives

Alexandre Carbonneau

摘要:

本文提出了一种用于长期金融衍生品全球对冲的深度强化学习方法。与Coleman et al.(2007)类似的设置被认为是嵌入在具有棘轮特征的可变年金担保中的回望期权的风险管理。Buehler等人(2019 a)的深度对冲算法被应用于优化神经网络,该神经网络表示具有二次和非二次惩罚的全局对冲策略。据作者所知,这是第一份文件,提出了一个广泛的基准全球政策的长期或有债权与使用各种对冲工具(如基础和标准期权),并与股票跳跃风险的存在。蒙特卡罗实验证明了非二次全局对冲的巨大优越性,因为它同时导致下行风险指标比最佳基准小两到三倍,并获得显著的对冲收益。分析表明,神经网络能够有效地适应他们的对冲决策,以不同的惩罚和程式化的事实,风险资产动态,只有通过模拟表现出这些功能的金融市场。数值结果还表明,非二次的全球政策是显着更适合于长期股权风险,这需要赚取股权风险溢价。

英文摘要:

This study presents a deep reinforcement learning approach for global hedging of long-term financial derivatives. A similar setup as in Coleman et al. (2007) is considered with the risk management of lookback options embedded in guarantees of variable annuities with ratchet features. The deep hedging algorithm of Buehler et al. (2019a) is applied to optimize neural networks representing global hedging policies with both quadratic and non-quadratic penalties. To the best of the author's knowledge, this is the first paper that presents an extensive benchmarking of global policies for long-term contingent claims with the use of various hedging instruments (e.g. underlying and standard options) and with the presence of jump risk for equity. Monte Carlo experiments demonstrate the vast superiority of non-quadratic global hedging as it results simultaneously in downside risk metrics two to three times smaller than best benchmarks and in significant hedging gains. Analyses show that the neural networks are able to effectively adapt their hedging decisions to different penalties and stylized facts of risky asset dynamics only by experiencing simulations of the financial market exhibiting these features. Numerical results also indicate that non-quadratic global policies are significantly more geared towards being long equity risk which entails earning the equity risk premium.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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