Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Calls for expanded university education are frequently based on arguments that more graduates will lead to faster growth. Empirical analysis does not, however, support this general proposition. Differences in cognitive skills—the knowledge capital of countries—can explain most of the differences in growth rates across countries, but just adding more years of schooling without increasing cognitive skills historically has had little systematic influence on growth.