设计股票市场指数的代理在计算上是困难的
Designing Proxies for Stock Market Indices is Computationally Hard
摘要:
在本文中,我们研究的问题,设计代理(或投资组合)的各种股票市场指数的基础上的历史数据。我们使用四种不同的方法来计算市场指数,所有这些都是在实际股票市场分析中使用的公式。对于每个指数,我们考虑三个标准来设计代理:代理必须跟踪市场指数,跑赢市场指数,或在指数的误差范围内执行,同时保持低波动性。在12个案例中的11个案例中(除了使用价格相对指数牺牲回报以降低波动性的问题外,所有四个指数与三个标准的组合),我们证明了这个问题是NP难的,因此很可能是棘手的。
英文摘要:
In this paper, we study the problem of designing proxies (or portfolios) for various stock market indices based on historical data. We use four different methods for computing market indices, all of which are formulas used in actual stock market analysis. For each index, we consider three criteria for designing the proxy: the proxy must either track the market index, outperform the market index, or perform within a margin of error of the index while maintaining a low volatility. In eleven of the twelve cases (all combinations of four indices with three criteria except the problem of sacrificing return for less volatility using the price-relative index) we show that the problem is NP-hard, and hence most likely intractable.
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。