Existing evidence for unconditional convergence in the OECD is mixed, and depends largely on whether time series or … cross sectional methods are used. In this paper we reconsider the evidence for unconditional convergence by dividing the … long-run growth in output to test for unconditional convergence and to test for equality of long-run growth across …

We argue that cross-country convergence of output per capita should be examined in a fractional-integration time …-run convergence and fractional catching-up. The starting point of the paper is: since there are reasons to believe that aggregate … techniques is too restrictive and may lead to spurious results. We then propose a new classification of output convergence …