共 50 条
- [3] Endogenous protection of R&D investments [J]. CANADIAN JOURNAL OF ECONOMICS-REVUE CANADIENNE D ECONOMIQUE, 2009, 42 (01): : 184 - 205
- [7] R&D with spillovers and endogenous absorptive capacity [J]. JOURNAL OF INSTITUTIONAL AND THEORETICAL ECONOMICS-ZEITSCHRIFT FUR DIE GESAMTE STAATSWISSENSCHAFT, 2002, 158 (02): : 286 - 303
- [9] R&D and Productivity: Estimating Endogenous Productivity [J]. REVIEW OF ECONOMIC STUDIES, 2013, 80 (04): : 1338 - 1383