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arXiv 1709.05786stat.ME
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部分泛函Panel回归中的参数域

Parameter Regimes in Partial Functional Panel Regression

Dominik Liebl, Fabian Walders

摘要:

针对时变参数面板数据,提出了一种新的偏泛函线性回归模型。允许多变量模型组件的参数向量是完全时变的,而假设函数模型组件的函数值参数在K个未知参数范围内变化。一致性推导出建议的估计和用于检测K未知参数制度的分类程序。此外,估计量的收敛速度下,根据面板尺寸n和T的相对顺序的渐近情景之间的双重渐近微分。统计模型的动机是一个真正的数据应用程序考虑所谓的特质波动之谜,使用高频数据从标准普尔500指数。

英文摘要:

A new partial functional linear regression model for panel data with time varying parameters is introduced. The parameter vector of the multivariate model component is allowed to be completely time varying while the function-valued parameter of the functional model component is assumed to change over K unknown parameter regimes. Consistency is derived for the suggested estimators and for the classification procedure used to detect the K unknown parameter regimes. Additionally, the convergence rates of the estimators are derived under a double asymptotic differentiating between asymptotic scenarios depending on the relative order of the panel dimensions n and T. The statistical model is motivated by a real data application considering the so-called idiosyncratic volatility puzzle using high frequency data from the S&P500.

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