Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Using data from 20 US manufacturing industries, we find strong evidence that a more generous tax treatment of R&D positively impacts on the growth rate of total factor productivity and that this effect is stronger for industries farther from the technological frontier. The estimates also suggest that the productivity growth effect of R&D tax policy is comparable in size to that induced by technology transfers.