A Residual-Based Cointegration Test for Near Unit Root Variables

A Residual-Based LM Test for Fractional Cointegration

Nonstationary fractionally integrated time series may possibly be fractionally cointegrated. In this paper we propose a test for the null hypothesis of no cointegration. It builds on a static cointegration regression of the levels of the variables as a first step. In a second step, a univariate LM test is applied to the single equation regression residuals. However, it turns out that the applic...

Unit Root and Cointegration Tests

A Residual-Based Test of the Null of Cointegration against the Alternative of No Cointegration

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Unit Root and Cointegration Tests with Wavelets∗

This paper develops a wavelet (spectral) approach to test the presence of a unit root in a stochastic process. The wavelet approach is appealing, since it is based directly on the different behavior of the spectra of a unit root process and that of a short memory stationary process. By decomposing the variance (energy) of the underlying process into the variance of its low frequency components ...

Unit Root Test in a Threshold Autoregression: Asymptotic Theory and Residual-based Block Bootstrap

There is a growing literature on unit root testing in threshold autoregressive models. This paper makes two contributions to the literature. First, an asymptotic theory is developed for unit root testing in a threshold autoregression, in which the errors are allowed to be dependent and heterogeneous, and the lagged level of the dependent variable is employed as the threshold variable. The asymp...