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arXiv 1111.3856q-fin.PRmath.PR
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考虑交易对手风险的多维指数效用无差异定价模型

A Multidimensional Exponential Utility Indifference Pricing Model with Applications to Counterparty Risk

Vicky Henderson, Gechun Liang

摘要:

研究了具有跨期违约风险的多维非交易资产模型的指数效用无差别定价问题,给出了效用无差别价格的一个半群逼近.主要工具是分裂法,基于Barles-Souganstrom单调格式证明了分裂法的收敛性,基于Krylov的系数抖动技术推导了分裂法的收敛速度。我们应用我们的方法来研究不完全市场中衍生品的交易对手风险。

英文摘要:

This paper considers exponential utility indifference pricing for a multidimensional non-traded assets model subject to inter-temporal default risk, and provides a semigroup approximation for the utility indifference price. The key tool is the splitting method, whose convergence is proved based on the Barles-Souganidis monotone scheme, and the convergence rate is derived based on Krylov's shaking the coefficients technique. We apply our methodology to study the counterparty risk of derivatives in incomplete markets.

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