Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Basic research is mainly performed publicly. Yet in the US public research findings were not patentable until 1980, and in other countries are not yet patentable. Patentability renders public research more directed, with less potential waste, but it also restricts private applied research. This paper shows, by means of a multi-stage Schumpeterian growth model, that in the long run the first effect is bound to dominate.