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math.ST2021
Debiased and threshold ridge regression for linear model with heteroskedastic and dependent error
Yunyi Zhang, Dimitris N. Politis
Focusing on a high dimensional linear model with dependent, non-stationary, and heteroskedastic errors, this paper applies the debiased and threshold ridge regression m…
math.ST2021
Simultaneous Statistical Inference for Second Order Parameters of Time Series under Weak Conditions
Yunyi Zhang, Efstathios Paparoditis, Dimitris N. Politis
Strict stationarity is a common assumption used in the time series literature in order to derive asymptotic distributional results for second-order statistics, like sample autocova…