Optimal Investment with Transaction Costs and Stochastic Volatility
摘要：
Two major financial market frictions are transaction costs and uncertain volatility, and we analyze their joint impact on the problem of portfolio optimization. When volatility is constant, the transaction costs optimal investment problem has a long history, especially in the use of asymptotic approximations when the cost is small. Under stochastic volatility, but with no transaction costs, the Merton problem under general utility functions can also be analyzed with asymptotic methods. Here, we look at the long-run growth rate problem when both frictions are present, using separation of time scales approximations. This leads to perturbation analysis of an eigenvalue problem. We find the first term in the asymptotic expansion in the time scale parameter, of the optimal long-term growth rate, and of the optimal strategy, for fixed small transaction costs
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关键词：
Transaction costs optimal investment asymptotic analysis utility maximization stochastic volatility
DOI：
10.2139/ssrn.2374150
被引量：
年份：
2014
掌桥科研
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dx.doi.org
arXiv.org
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