Boswijk, Herman Peter; Cavaliere, Giuseppe; Georgiev, Iliyan - 2019
| when the volatility of the innovations is random and possibly non-stationary? In fact, the volatility of many economic and … validity of the bootstrap when the volatility is driven by a non-stationary stochastic process. This includes near … literature by developing conditions for bootstrap validity in time series and regression models with non-stationary, stochastic …