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arXiv 1404.0989math.PR
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多项式扩散及其在金融中的应用

Polynomial Diffusions and Applications in Finance

Damir Filipovic, Martin Larsson

摘要:

本文提供了多项式扩散的数学基础。它们在越来越多的金融应用中发挥着重要作用,包括利率、信用风险、随机波动、商品和电力的金融市场模型。多项式扩散的唯一性是通过矩决定性与路径唯一性相结合来建立的。存在归结为一个随机不变性问题,我们解决半代数状态空间。例子包括单位球、单位立方体与非负正交线的乘积和单位单形。

英文摘要:

This paper provides the mathematical foundation for polynomial diffusions. They play an important role in a growing range of applications in finance, including financial market models for interest rates, credit risk, stochastic volatility, commodities and electricity. Uniqueness of polynomial diffusions is established via moment determinacy in combination with pathwise uniqueness. Existence boils down to a stochastic invariance problem that we solve for semialgebraic state spaces. Examples include the unit ball, the product of the unit cube and nonnegative orthant, and the unit simplex.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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