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Network quantile autoregression

Author

Listed:
  • Zhu, Xuening
  • Wang, Weining
  • Wang, Hangsheng
  • Härdle, Wolfgang Karl

Abstract

It is a challenging task to understand the complex dependency structures in an ultra-high dimensional network, especially when one concentrates on the tail dependency. To tackle this problem, we consider a network quantile autoregres- sion model (NQAR) to characterize the dynamic quantile behavior in a complex system. In particular, we relate responses to its connected nodes and node spe- ci c characteristics in a quantile autoregression process. A minimum contrast estimation approach for the NQAR model is introduced, and the asymptotic properties are studied. Finally, we demonstrate the usage of our model by in- vestigating the nancial contagions in the Chinese stock market accounting for shared ownership of companies.

Suggested Citation

  • Zhu, Xuening & Wang, Weining & Wang, Hangsheng & Härdle, Wolfgang Karl, 2016. "Network quantile autoregression," SFB 649 Discussion Papers 2016-050, Humboldt University Berlin, Collaborative Research Center 649: Economic Risk.
    • Handle: RePEc:zbw:sfb649:sfb649dp2016-050
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