@article{10902/22731, year = {2021}, month = {11}, url = {http://hdl.handle.net/10902/22731}, abstract = {American options prices under jump-diffusion models are determined by a free boundary partial integro-differential equation (PIDE) problem. In this paper, we propose a front-fixing exponential time differencing (FF-ETD) method composed of several steps. First, the free boundary is included into equation by applying the front-fixing transformation. Second, the resulting nonlinear PIDE is semi-discretized, that leads to a system of ordinary differential equations (ODEs). Third, a numerical solution of the system is constructed by using exponential time differencing (ETD) method and matrix quadrature rules. Finally, numerical analysis is provided to establish empirical stability conditions on step sizes. Numerical results show the efficiency and competitiveness of the FF-ETD method.}, organization = {This work has been partially supported by the Ministerio de Ciencia, Innovación y Universidades, Spanish grant MTM2017-89664-P}, publisher = {Elsevier}, publisher = {Mathematics and Computers in Simulation, 2021, 189, 69-84}, title = {A front-fixing ETD numerical method for solving jump–diffusion American option pricing problems}, author = {Company Rossi, Rafael and Egorova, Vera and Jódar Sánchez, Lucas}, }