共 50 条
- [32] Financial Constraints, R&D Investment, and Stock Returns REVIEW OF FINANCIAL STUDIES, 2011, 24 (09): : 2974 - 3007
- [35] R&D Investment, FDI and Technology-Sourcing Firms PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON OPERATIONS AND SUPPLY CHAIN MANAGEMENT (ICOSCM 2010), 2010, 4 : 596 - 599
- [40] Are there financing constraints for R&D and investment in German manufacturing firms? ECONOMICS AND ECONOMETRICS OF INNOVATION, 2000, : 399 - 434