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The intersection between european put price and its payoff function

机译:欧洲看跌价格与其收益函数之间的交集

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摘要

In this paper, we study the intersection between the price of a European put and its payoff function. We derive asymptotic expansion formulas for the intersection near expiration date for three different cases of risk-free rate r and dividend yield q, i.e. r > q, r = q, and r < q. The comparison with those of the critical stock price of an American option enhances our understanding on the convergence of the asymptotic expansion near a singular point.
机译:在本文中,我们研究了欧洲看跌期权的价格与其收益函数之间的交集。对于三种不同的无风险利率r和股利收益率q,即r> q,r = q和r

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