| 来源类型 | Discussion paper |
| 规范类型 | 论文 |
| 来源ID | DP12294 |
| DP12294 Are Ideas Getting Harder to Find? | |
| John Van Reenen; Nicholas Bloom; Chad Jones; Michael Webb | |
| 发表日期 | 2017-09-12 |
| 出版年 | 2017 |
| 语种 | 英语 |
| 摘要 | In many growth models, economic growth arises from people creating ideas, and the long-run growth rate is the product of two terms: the effective number of researchers and their research productivity. We present a wide range of 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 every two years of the density of computer chips is more than 18 times larger than the number required in the early 1970s. Across a broad range of case studies at various levels of (dis)aggregation, we find that ideas—and in particular the exponential growth they imply — are getting harder and harder to find. Exponential growth results from the large increases in research effort that offset its declining productivity. |
| 主题 | Macroeconomics and Growth |
| URL | https://cepr.org/publications/dp12294 |
| 来源智库 | Centre for Economic Policy Research (United Kingdom) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/541105 |
| 推荐引用方式 GB/T 7714 | John Van Reenen,Nicholas Bloom,Chad Jones,et al. DP12294 Are Ideas Getting Harder to Find?. 2017. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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