Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
In this article we try an exploration, by means of a few simple exercises, of the consequences of introducing into a standard endogenous-growth model with expanding product variety the possibility that the invention process of the new blueprints may follow more than one single predetermined trajectory. The main motivations are a slightly more realistic formalization of entrepreneurial creativity with spillovers and the greater flexibility of the economic results. Copyright 1997 by Kluwer Academic Publishers