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We examine how different renewable energy support policies affect innovation in solar and wind power technologies. The analysis uses policy and patent data for a large sample of 194 countries and territories. The policy data enables distinguishing between two dimensions of regulation, i.e. design and intensity, and their effects on innovation. The patent data is based on the new Y02E system and covers the period 1990 to 2016, with the more recent years revealing both strong increases and declines in patenting activity. The results show that, firstly, more comprehensive portfolios of renewable energy support policies increase patenting in solar- and wind-power-related technologies. Secondly, this inducement effect is strongest for public RD&D programs, targets, and fiscal incentives. In contrast to previous studies, this paper finds a consistently positive impact of feed-in tariffs and does not detect technology-specific differences in the effectiveness of this policy instrument. Thirdly, the positive effect on patenting activity increases significantly over time, with an increase in duration of the implemented RD&D programs and targets.
This thesis iestigates the connection between eironmental regulation, technological innovation, and export competitiveness in renewable energy equipment based on a large sample of 225 developed and developing countries from 1990 to 2012. The empirical analysis yields strong supporting evidence for the narrowly strong Porter Hypothesis as well as for the lead market theory. The results suggest that eironmental regulation drives innovation and export volumes in solar- and wind-power-related goods. This is particularly the case for well-crafted (i.e. market-based, output-oriented, and clear) instruments such as carbon trading regimes. Moreover, the data show that early adopters of renewable energy support policies benefit most.
We examine how different renewable energy support policies affect innovation in solar and wind power technologies. The analysis is conducted using policy and patent data for a large sample of 194 countries and territories. The policy data allows distinguishing two dimensions of regulation, i.e. design and intensity, and their effects on innovation. The patent data is based on the new Y02E system and covers the period 1990 to 2016 with the more recent years of both strong increases and declines in patenting activity. The results show that, first, more intense portfolios of renewable energy support policies increase patenting in solar- and wind-power-related technologies. Second, this inducement effect is the strongest for public RD&D programs, targets, and fiscal incentives. In contrast to previous studies, this paper finds a consistently positive impact of feed-in tariffs and does not detect technology-specific differences in the effectiveness of this policy instrument. Third, the positive effect on patenting activity increases significantly over time with an increase in the duration of the implemented RD&D programs and targets.