This paper provides evidence on the unit root hypothesis and long-term growth by allowing for two structural breaks. We reject unit root hypothesis for three-quarters of the countries - approximately 50% more rejections than in models that allow for only one break.

This paper proposes an explicit test for determining the significance and timing of slowdowns in economic growth during the post-war period.

The goal here is not to provide an explanation for the growth in trade over the postwar period. The fist goal of this paper is to examine whether the trade-output shares evolved gradually over the postwar period , or whether trade in individual countries changes abruptly. We analyze sequential...