%0 Journal Article %T Discretization error of Stochastic Integrals %A Masaaki Fukasawa %J Quantitative Finance %D 2010 %I arXiv %X Asymptotic error distribution for approximation of a stochastic integral with respect to continuous semimartingale by Riemann sum with general stochastic partition is studied. Effective discretization schemes of which asymptotic conditional mean-squared error attains a lower bound are constructed. Two applications are given; efficient delta hedging strategies with transaction costs and effective discretization schemes for the Euler-Maruyama approximation are constructed. %U http://arxiv.org/abs/1004.2107v1