Discrete-time Ornstein-Uhlenbeck process in a stationary dynamic environment

نویسندگان

  • Arka P. Ghosh
  • Wenjun Qin
  • Alexander Roitershtein
چکیده

We study the stationary solution to the recursion Xn+1 = γXn+ξn, where γ ∈ (0, 1) is a constant and ξn are Gaussian variables with random parameters. Specifically, we assume that ξn = μn + σnεn, where (ε)n∈Z is an i.i.d. sequence of standard normal variables and (μn, σn)n∈Z is a stationary and ergodic process independent of (εn)n∈Z, which serves as an exogenous dynamic environment for the model. JEL codes: C02, C22. MSC2010: primary 60K37, 60G15; secondary 60F05, 62M10.

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تاریخ انتشار 2011