This paper introduces dynamics in the R&D to innovation and innovation to productivity relationships, which have mostly been estimated on cross-sectional data. It considers four nonlinear dynamic simultaneous equations models that include individual effects and idiosyncratic errors correlated...

We take a critical look at how to assess the effectiveness of R&D tax incentives. The net welfare gain is shown to be sensitive to a certain number of parameters. In particular, the deadweight loss associated with level-based tax incentives depends on the ex-ante R&D level. We report on the...