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arXiv 1504.04682q-fin.TRq-fin.MF
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带交易成本的指数OU模型下的最优多次交易时间

Optimal Multiple Trading Times Under the Exponential OU Model with Transaction Costs

Tim Leung, Xin Li, Zheng Wang

摘要:

本文研究了具有固定交易成本的均值回复价格动态模型下的交易时机选择问题。我们解决了一个最佳的双停止问题,以确定最佳的时间进入和随后退出市场,当价格是由一个指数的Ornstein-Uhlenbeck过程。此外,我们分析了一个相关的最优切换问题,涉及一个无限序列的行业,并确定的条件下,双停止和切换问题承认相同的最优进入和/或退出时机策略。在我们的研究结果中,我们发现投资者通常在价格较低时进入,但如果当前价格足够接近零,则可能会发现等待是最佳选择。换句话说,用于条目的延续(等待)区域被断开。数值结果说明了模型参数和交易成本对时机策略的依赖性。

英文摘要:

This paper studies the timing of trades under mean-reverting price dynamics subject to fixed transaction costs. We solve an optimal double stopping problem to determine the optimal times to enter and subsequently exit the market, when prices are driven by an exponential Ornstein-Uhlenbeck process. In addition, we analyze a related optimal switching problem that involves an infinite sequence of trades, and identify the conditions under which the double stopping and switching problems admit the same optimal entry and/or exit timing strategies. Among our results, we find that the investor generally enters when the price is low, but may find it optimal to wait if the current price is sufficiently close to zero. In other words, the continuation (waiting) region for entry is disconnected. Numerical results are provided to illustrate the dependence of timing strategies on model parameters and transaction costs.

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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