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arXiv 1809.09588q-fin.MFmath.PR
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连续金融市场中的无套利

No Arbitrage in Continuous Financial Markets

David Criens

摘要:

我们得到的存在和不存在的套利在金融市场与一个风险资产,这是建模为随机指数的伊藤过程或正扩散与马尔可夫切换的整体测试。特别地,我们得到了最小鞅测度存在的条件。我们还表明,对于马尔可夫切换模型的最小鞅测度保持独立的噪声,我们研究了如何最小的鞅测度可以被修改,以改变结构的切换机制。我们的主要数学工具是一类随机指数的鞅和严格局部鞅性质的新判据。

英文摘要:

We derive integral tests for the existence and absence of arbitrage in a financial market with one risky asset which is either modeled as stochastic exponential of an Ito process or a positive diffusion with Markov switching. In particular, we derive conditions for the existence of the minimal martingale measure. We also show that for Markov switching models the minimal martingale measure preserves the independence of the noise and we study how the minimal martingale measure can be modified to change the structure of the switching mechanism. Our main mathematical tools are new criteria for the martingale and strict local martingale property of certain stochastic exponentials.

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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