半静态交易策略的结果空间不必封闭
The space of outcomes of semi-static trading strategies need not be closed
摘要:
半静态交易策略经常出现在金融数学中,其中流动资产的动态交易与该资产期权的静态买入并持有头寸相结合。我们表明,当固定日期的所有欧式期权$T$均可用于静态交易时,此类策略的结果空间可能具有非常差的封闭性。这就给最优投资带来了问题,并与金融数学中经典考虑的纯动态情况形成了鲜明的对比。
英文摘要:
Semi-static trading strategies make frequent appearances in mathematical finance, where dynamic trading in a liquid asset is combined with static buy-and-hold positions in options on that asset. We show that the space of outcomes of such strategies can have very poor closure properties when all European options for a fixed date $T$ are available for static trading. This causes problems for optimal investment, and stands in sharp contrast to the purely dynamic case classically considered in mathematical finance.
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。