On martingales, causality, identifiability and model selection
نویسندگان
چکیده
We give sufficient criteria for the Doléans-Dade exponential of a stochastic integral with respect to a counting process local martingale to be a true martingale. The criteria are sufficiently weak to be useful and verifiable, as illustrated by several non-trivial examples, without introducing artificial constraints. In particular, they make it possible to construct nonexplosive point processes with intensities adapted to a general filtration by a change of measure.
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تاریخ انتشار 2014