We propose methods for testing hypothesis of non-causality at various horizons, as defined in Dufour and Renault (1998, Econometrica). We study in detail the case of VAR models and we propose linear methods based on running vector autoregressions at different horizons. While the hypotheses...

Using the four Biotechnology Uses and Development surveys of Statistics Canada, we analyse the relative importance of funding and support as well as collaboration and contracting, R&D and IP strategies on the propensity to patent of Canadian biotechnology firms. Our model accounts for the...

We review the econometric literature on measuring the returns to R&D. The theoretical frameworks that have been used are outlined, followed by an extensive discussion of measurement and econometric issues that arise when estimating the models. We then provide a series of tables summarizing the...