Are Ideas Getting Harder to Find?
作者: Nicholas BloomCharles I. JonesJohn Van ReenenMichael Webb
作者单位: 1Department of Economics, Stanford University, and NBER (email: )
2 Graduate School of Business, Stanford University, and NBER (email: )
3 Department of Economics, MIT, LSE, and NBER (email: )
4 Department of Economics, Stanford University (email: )
刊名: American Economic Review, 2020, Vol.110 (4), pp.1104-1144
来源数据库: American Economic Association
DOI: 10.1257/aer.20180338
原始语种摘要: Long-run growth in many models is the product of two terms: the effective number of researchers and their research productivity. We present evidence from various industries, products, and firms showing that research effort is rising substantially while research productivity is declining sharply. A good example is Moore’s Law. The number of researchers required today to achieve the famous doubling of computer chip density is more than 18 times larger than the number required in the early 1970s. More generally, everywhere we look we find that ideas, and the exponential growth they imply, are getting harder to find. (JEL D24, E23, O31, O47 )
全文获取路径: 美国经济学会 

  • productivity 生产能力
  • exponential 指数的
  • number 号码
  • research 
  • terms 术语
  • substantially 实体
  • evidence 
  • rising 上升的
  • generally 通常
  • products 制品