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Stochastic integration for uncoupled continuous-time random walks

Scalas, Enrico and Germano, Guido and Politi, Mauro and Schilling, René L. (2008): Stochastic integration for uncoupled continuous-time random walks.

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Abstract

Continuous-time random walks are pure-jump processes with several applications in physics, but also in insurance, finance and economics. Based on heuristic considerations, a definition is given for the stochastic integral driven by continuous-time random walks. The martingale properties of the integral are investigated. Finally, it is shown how the definition can be used to easily compute the stochastic integral by means of Monte Carlo simulations.

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