7Dominique Guellec, Van Pottelsberghe De la Potteric. From R&D to Productivity Growth: Do the institutional settings and the source of funds of R&D matter[J] . Oxford Bulletin of Economic & Statistics , 2004 (3), 353 - 378. 被引量:1
8BARRO R J. Government spending in a simple model of endogenous growth [J]. Journal of Political Economy, 1990 (98) : 5103 -5125. 被引量:1