Showing 1 - 3 of 3
The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of...
Persistent link: https://www.econbiz.de/10012466933
between appropriability mechanisms, innovation and firm-level productivity. We enrich this model in several ways. First, we … consider different types of innovation spending and study the differences in estimates when innovation spending (rather than R …&D spending) is used to predict innovation in the CDM model. Second, we assume that a firm simultaneously innovates and chooses …
Persistent link: https://www.econbiz.de/10012458153
innovative performance measured as turnover due to innovation, but not between patenting and subsequent employment growth. The …
Persistent link: https://www.econbiz.de/10012459572