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arXiv 1302.0122math.STstat.TH
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基于条件特征函数的马尔可夫过程参数估计与模型检验

Parameter estimation and model testing for Markov processes via conditional characteristic functions

Song X. Chen, Liang Peng, Cindy L. Yu

摘要:

马尔可夫过程被广泛应用于包括金融在内的各种学科。这些过程的跃迁密度通常是未知的。然而,条件特征函数更有可能是可用的,特别是对于Lévy驱动的过程。我们提出了一种经验似然方法,参数估计和模型规格测试,基于条件特征函数的过程中,无论是连续或不连续的样本路径。提供了参数的经验似然估计的理论性质和过程的参数规格的平滑经验似然比检验。仿真和实证案例研究进行了确认所提出的估计和测试的有效性。

英文摘要:

Markov processes are used in a wide range of disciplines, including finance. The transition densities of these processes are often unknown. However, the conditional characteristic functions are more likely to be available, especially for Lévy-driven processes. We propose an empirical likelihood approach, for both parameter estimation and model specification testing, based on the conditional characteristic function for processes with either continuous or discontinuous sample paths. Theoretical properties of the empirical likelihood estimator for parameters and a smoothed empirical likelihood ratio test for a parametric specification of the process are provided. Simulations and empirical case studies are carried out to confirm the effectiveness of the proposed estimator and test.

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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