An empirical finding by Gaspar, Jaramillo and Wingender (2016) shows that once countries cross a tax-to-GDP threshold of around 12¾ percent, real GDP per capita increases sharply and in a sustained manner over the following decade. In this paper, we attempt via four case studies - Spain, China,...

This paper studies the effect of climate change mitigating policies on innovation in clean energy technologies. Results suggest that the tightening of environmental policies since the early 1990s have made a statistically and economically significant contribution to the increase in clean...