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Dancing with the Stars: Innovation Through Interactions / Ufuk Akcigit, Santiago Caicedo, Ernest Miguelez, Stefanie Stantcheva, Valerio Sterzi.
- Format:
- Book
- Author/Creator:
- Akcigit, Ufuk.
- Series:
- Working Paper Series (National Bureau of Economic Research) no. w24466.
- NBER working paper series no. w24466
- Language:
- English
- Physical Description:
- 1 online resource: illustrations (black and white);
- Other Title:
- Dancing with the Stars
- Place of Publication:
- Cambridge, Mass. National Bureau of Economic Research 2018.
- Summary:
- An inventor's own knowledge is a key input in the innovation process. This knowledge can be built by interacting with and learning from others. This paper uses a new large-scale panel dataset on European inventors matched to their employers and patents. We document key empirical facts on inventors' productivity over the life cycle, inventors' research teams, and interactions with other inventors. Among others, most patents are the result of collaborative work. Interactions with better inventors are very strongly correlated with higher subsequent productivity. These facts motivate the main ingredients of our new innovation-led endogenous growth model, in which innovations are produced by heterogeneous research teams of inventors using inventor knowledge. The evolution of an inventor's knowledge is explained through the lens of a diffusion model in which inventors can learn in two ways: By interacting with others at an endogenously chosen rate; and from an external, age-dependent source that captures alternative learning channels, such as learning-by-doing. Thus, our knowledge diffusion model nests inside the innovation-based endogenous growth model. We estimate the model, which fits the data very closely, and use it to perform several policy exercises, such as quantifying the large importance of interactions for growth, studying the effects of reducing interaction costs (e.g., through IT or infrastructure), and comparing the learning and innovation processes of different countries.
- Notes:
- Print version record
- March 2018.
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