This paper evaluates the finite-sample performance of single structural change tests based onthe asymptotic distribution and bootstrap procedures. In addition to the conventional case of stationaryregressors, we consider nonstationary regressors and others characterized by the presence of a...

We investigate the instability problem of the covariance structure of time series by combining the non-parametric approach based on the evolutionary spectral density theory of Priestley [Evolutionary spectra and non-stationary processes, J. R. Statist. Soc., 27 (1965), pp. 204-237; Wavelets and...