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Asymptotic theory for varying coefficient regression models with dependent data

Author

Listed:
  • Soutir Bandyopadhyay

    (Lehigh University)

  • Arnab Maity

    (North Carolina State University)

Abstract

The varying coefficient models (VCMs) are extremely important tools in the statistical literature and are widely used in many subject areas for data modeling and exploration. In linear VCMs, typically the errors are assumed to be independent. However, in many situations, especially in spatial or spatiotemporal settings, this is not a viable assumption. In this article, we consider nonparametric VCMs with a general dependent error structure which allows for both spatially autoregressive and spatial moving average models as special cases. We investigate asymptotic properties of local polynomial estimators of the model components. Specifically, we show that the estimates of the unknown functions and their derivatives are consistent and asymptotically normally distributed. We show that the rate of convergence and the asymptotic covariance matrix depend on the error dependence structure and we derive the explicit formula for the convergence results.

Suggested Citation

  • Soutir Bandyopadhyay & Arnab Maity, 2018. "Asymptotic theory for varying coefficient regression models with dependent data," Annals of the Institute of Statistical Mathematics, Springer;The Institute of Statistical Mathematics, vol. 70(4), pages 745-759, August.
    • Handle: RePEc:spr:aistmt:v:70:y:2018:i:4:d:10.1007_s10463-017-0607-z
    DOI: 10.1007/s10463-017-0607-z
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    References listed on IDEAS

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