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We propose finite sample tests and confidence sets for models with unobserved and generated regressors as well as various models estimated by instrumental variables methods. The validity of the procedures is unaffected by the presence of identification problems or weak instruments, so no...
Persistent link: https://www.econbiz.de/10005100901
This paper introduces dynamics in the R&D to innovation and innovation to productivity relationships, which have mostly … individual effects and idiosyncratic errors correlated across equations and that differ in the way innovation enters the … Community Innovation Survey. The results provide evidence of robust unidirectional causality from innovation to productivity and …
Persistent link: https://www.econbiz.de/10011183685
We propose a model where both R&D and ICT investment feed into a system of three innovation output equations (product …, process and organizational innovation), which ultimately feeds into a productivity equation. We find that ICT investment and … usage are important drivers of innovation in both manufacturing and services. Doing more R&D has a positive effect on …
Persistent link: https://www.econbiz.de/10008568680