| 来源类型 | Discussion paper |
| 规范类型 | 论文 |
| 来源ID | DP10498 |
| DP10498 Input Diffusion and the Evolution of Production Networks | |
| Vasco Carvalho; Nico Voigtländer | |
| 发表日期 | 2015-03-22 |
| 出版年 | 2015 |
| 语种 | 英语 |
| 摘要 | The adoption and diffusion of inputs in the production network is at the heart of technological progress. What determines which inputs are initially considered and eventually adopted by innovators? We examine the evolution of input linkages from a network perspective, starting from a stylized model of network formation. Producers direct their search for new inputs along vertical linkages, screening the network neighborhood of existing suppliers to identify potentially useful inputs. A subset of these is then adopted, following a tradeoff between the benefits from input variety and the costs of customizing new inputs. Guided by this framework, we document a novel stylized fact at both the sector and the firm level: producers are more likely to adopt inputs that are already used ? directly or indirectly ? by their current suppliers. In particular, using disaggregated input-output data, we show that initial network proximity of a sector in 1967 significantly increases the likelihood of adoption throughout the subsequent four decades. A one-standard deviation decrease in network distance is associated with an increase in the adoption probability by one third to one half. Similarly, U.S. firms are significantly more likely to develop new input linkages among their suppliers? network neighborhood. Our results imply that the existing production network plays a crucial role in the diffusion of inputs and the evolution of technology. |
| 主题 | International Macroeconomics |
| 关键词 | Input adoption Directed network search Dynamics of production networks |
| URL | https://cepr.org/publications/dp10498 |
| 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/539330 |
| 推荐引用方式 GB/T 7714 | Vasco Carvalho,Nico Voigtländer. DP10498 Input Diffusion and the Evolution of Production Networks. 2015. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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