Private and Social Returns to R&D: Drug Development and Demographics
收藏数据链接：
官方服务：
资源简介：
Investment in intangible capitalin particular, research and developmentincreased dramatically since the 1990s. However, productivity growth remains sluggish in recent years. One potential reason is that a significant share of the increase in intangible investment is geared toward consumer products
提供机构：
美国国家经济研究局创建时间：
2021-01-01
