共 50 条
- [42] Agricultural R&D, resources, and productivity LAND QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY: BIOPHYSICAL PROCESSES AND ECONOMIC CHOICES AT LOCAL, REGIONAL, AND GLOBAL LEVELS, 2003, : 405 - 430
- [44] The productivity crisis in pharmaceutical R&D Nature Reviews Drug Discovery, 2011, 10 : 428 - 438
- [47] R&D and productivity: The international connection ECONOMICS OF GLOBALIZATION: POLICY PERSPECTIVES FROM PUBLIC ECONOMICS, 1999, : 17 - 30
- [50] R&D accessibility and regional export diversity The Annals of Regional Science, 2007, 41 : 501 - 523