Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper examines the effect of entry and innovative activity on total factor productivity growth. Using a sample of seventy-nine industries in the United Kingdom, 1976-79, significant effects are observed that persist over time, with innovative activity accounting for a larger positive effect on total factor productivity growth than domestic entry. Foreign entry has little apparent effect on productivity growth. Copyright 1989 by MIT Press.