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Statistical inference in regression with heavy-tailed integrated variables. (English) Zbl 1003.62070

Summary: We consider the problem of statistical inference in a bivariate time series regression model when the innovations are heavy-tailed and the OLS estimator is used for parameter estimation. We develop the asymptotic theory for the OLS estimator and the corresponding \(t\)-statistics. Limit distributions, that enable us to construct confidence intervals for the estimated parameters, are obtained via Monte Carlo simulations. The approach allows the components of the innovation vector to have different tail behavior.

MSC:

62M10 Time series, auto-correlation, regression, etc. in statistics (GARCH)
62F12 Asymptotic properties of parametric estimators
62P05 Applications of statistics to actuarial sciences and financial mathematics
62E20 Asymptotic distribution theory in statistics
65C05 Monte Carlo methods
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