We develop a simple estimator for production functions in the presence of endogenous productivity change that allows us to retrieve productivity and its relationship with R&D at the firm level. Our dynamic investment model can be viewed as a generalization of the knowledge capital model...

This paper studies the interlinks between innovation inputs and outputs and between innovation outputs and economic development. Using a panel data-set from 31 regions of China, we show that the difference in regional innovation output can be significantly explained by R&D manpower and...