自适应网格模型:一种高效期权定价的新方法

The adaptive mesh model: a new approach to efficient option pricing

Journal of Financial Economics · 1999
被引 227
人大 AFT50UTD24ABS 4*

中文导读

提出自适应网格模型,通过在粗网格上嫁接精细网格来减少非线性误差,用于高效定价普通期权、障碍期权并计算希腊字母,精度可提升数个数量级而不增加计算时间。

Abstract

Most derivative securities must be priced by numerical techniques. These models contain "distribution error" and "nonlinearity error". The Adaptive Mesh Model (AMM) sharply reduces nonlinearity error by grafting one or more small sections of fine high-resolution lattice onto a tree with coarser time and price steps. Three different AMM structures are presented, one for pricing ordinary options, one for barrier options, and one for computing delta and gamma efficiently. The AMM approach can be adapted to a wide variety of contingent claims. For some common problems, accuracy increases by several orders of magnitude with no increase in execution time.

自适应网格模型期权定价数值方法障碍期权