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arXiv 1609.07558q-fin.PRmath.PRq-fin.CP
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几何布朗运动、年金和亚式期权的离散和

Discrete Sums of Geometric Brownian Motions, Annuities and Asian Options

Dan Pirjol, Lingjiong Zhu

摘要:

几何布朗运动的离散和在保险随机年金模型中起着重要的作用。它在金融数学中的亚式期权定价中也起着举足轻重的作用。本文研究了几何布朗运动的无穷和、几何布朗运动的几何停时和以及几何布朗运动的有限和的概率分布。这些结果被推广到指数莱维过程的离散和。我们推导出尾渐近性和数值计算的渐近分布函数。我们比较的结果对已知的结果的连续时间积分的几何布朗运动的指数分布的时间。最后,以离散支付的人寿年金和亚式期权为例,说明了所得结果。

英文摘要:

The discrete sum of geometric Brownian motions plays an important role in modeling stochastic annuities in insurance. It also plays a pivotal role in the pricing of Asian options in mathematical finance. In this paper, we study the probability distributions of the infinite sum of geometric Brownian motions, the sum of geometric Brownian motions with geometric stopping time, and the finite sum of the geometric Brownian motions. These results are extended to the discrete sum of the exponential Lévy process. We derive tail asymptotics and compute numerically the asymptotic distribution function. We compare the results against the known results for the continuous time integral of the geometric Brownian motion up to an exponentially distributed time. The results are illustrated with numerical examples for life annuities with discrete payments, and Asian options.

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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