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内容説明 The Paris-Princeton Lectures in Financial Mathematics， of which this is the second volume， will， on an annual basis， publish cutting-edge research in self-contained， expository articles from outstanding - established or upcoming! - specialists. The aim is to produce a series of articles that can serve as an introductory reference for research in the field. It arises as a result of frequent exchanges between the finance and financial mathematics groups in Paris and Princeton. This volume presents the following articles: ?Hedging of Defaultable Claims? by T. Bielecki， M. Jeanblanc， and M. Rutkowski; ?On the Geometry of Interest Rate Models? by T. Bj-rk; ?Heterogeneous Beliefs， Speculation and Trading in Financial Markets? by J.A. Scheinkman， and W. Xiong.