Showing 1 - 10 of 28
Persistent link: https://www.econbiz.de/10004972920
Perron (1989) introduced a variety of unit root tests that are valid when a break in the trend function of a time series is present. The motivation was to devise testing procedures that were invariant to the magnitude of the shift in level and/or slope. In particular, if a change is present it...
Persistent link: https://www.econbiz.de/10004972924
This paper studies the behavior of recently proposed bootstrap tests for the null hypothesis of stationarity when the data are generated under the alternative hypothesis of a unit root. Using Monte Carlo experiments and empirical examples, it is shown that the power of these tests critically...
Persistent link: https://www.econbiz.de/10010793999
This paper considers the problem of testing for multiple structural changes in the persistence of a univariate time series. We propose sup-Wald tests of the null hypothesis that the process has an autoregressive unit root throughout the sample against the alternative hypothesis that the process...
Persistent link: https://www.econbiz.de/10011067364
This paper studies issues related to the estimation of a structural change in the persistence of a univariate time series. The break is such that the process has a unit root [i.e., is I(1)] in the pre-break regime but reverts to a stationary [i.e., I(0)] process in the post-break regime or vice...
Persistent link: https://www.econbiz.de/10011041702
Saikkonen (1991) developed an asymptotic optimality theory for the estimation of cointegrated regressions. He proposed the dynamic OLS estimator obtained by augmenting the static cointegrating regression with leads and lags of the first differences of the I(1) regressors. However, the...
Persistent link: https://www.econbiz.de/10004994220
This paper considers the problem of testing for multiple structural changes in the persistence of a univariate time series. We propose sup-Wald tests of the null hypothesis that the process has an autoregressive unit root against the alternative hypothesis that the process alternates between...
Persistent link: https://www.econbiz.de/10005037718
This paper revisits the well known Feldstein-Horioka saving-investment correlation puzzle from a time series perspective using a sample of 21 OECD countries. We argue that the strong positive correlation between saving and investment as originally identified by Feldstein and Horioka (1980)...
Persistent link: https://www.econbiz.de/10005584885
Saikkonen (1991, <italic>Econometric Theory</italic> 7, 1–21) developed an asymptotic optimality theory for the estimation of cointegrated regressions. He proposed the dynamic ordinary least squares (OLS) estimator obtained by augmenting the static cointegrating regression with leads and lags of the first...
Persistent link: https://www.econbiz.de/10005610461
This paper considers issues related to testing for multiple structural changes in cointegrated systems. We derive the limiting distribution of the Sup-Wald test under mild conditions on the errors and regressors for a variety of testing problems. We show that even if the coefficients of the...
Persistent link: https://www.econbiz.de/10005835341