Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper extends the distribution dynamics approach to the study of the shape of the growth process of a cross-section of countries. We first identify some empirical implications of a nonlinear Solovian growth model with multiple equilibria. These implications are then tested by a novel definition of the state space, which jointly considers income and growth rate. The main findings are that nonlinearity is a salient feature of the overall picture, and that the cross-section dynamics is compatible with the existence of multiple equilibria. We also discuss how the hypothesis of conditional convergence may be challenged in the light of our results. Copyright 2003 by Kluwer Academic Publishers