This article re-examines the persistence in natural gas consumption using an alternative methodology. We compare the results of traditional panel unit root tests with those provided by Bahmani-Oskooee et al., which allow for both sharp and smooth breaks. Our analysis uses data for the G7...

Thanks to various Fourier DF unit root tests, time-varying fiscal reaction functions and threshold regressions, this study examines the stationarity and the sustainability of public finance for six industrial countries over the period spanning from 1870 to 2017. Longer-run debt sustainability is...