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arXiv math/0501415math.PRmath.FA
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动态一致的非线性评价和期望

Dynamically Consistent Nonlinear Evaluations and Expectations

Shi-Ge Peng

摘要:

一个经济主体(公司、投资者或金融市场)如何评估一个未定权益,比如一个欧洲类型的衍生品X,期限为t?在本文中,我们研究了一个机制的动态期望和评价。给出了时间一致性的公理化条件。我们证明了,在支配条件下,时间一致的非线性评价实际上是g-期望,即,它完全确定了一个B_∞,其中生成元是一个给定的函数g。

英文摘要:

How an economic agent (a firm, an investor or a financial market) evaluates a contingent claim, say a European type of derivatives X, with maturity t? In this paper we study a mechanism of dynamic expectations and evaluations. We give the axiomatic conditions of the time consistency. We prove that, under a domination condition, a time consistent nonlinear evaluation is in fact a g-expectation, i.e., it is completely determined a BSDE in which the generator is a given function g.

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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