Are US macroeconomic series difference stationary or trend-break stationary?

@inproceedings{Sen2004AreUM,
  title={Are US macroeconomic series difference stationary or trend-break stationary?},
  author={Amit Sen},
  year={2004}
}
This article tests for the presence of a unit-root in all time series included in the extended Nelson-Plosser data set using the statistics devised by Zivot and Andrews, Perron and Murray and Zivot. It specifies the mixed model characterization of the trend-break stationary alternative that allows for a simultaneous break in both the intercept and slope of the trend-function. It rejects the unit-root null hypothesis for real GNP, nominal GNP, real per capita GNP, industrial production… CONTINUE READING