Do climate policies affect green patenting patterns?
- Authors: Bettarelli, L.; Furceri, D.; Pizzuto, P.; Shakoor, N.
- Publication year: 2025
- Type: Articolo in rivista
- Key words: Green patents; Climate change policy; Diff-in-diff approach; Innovation
- OA Link: http://hdl.handle.net/10447/692103
Abstract
This paper investigates the effect of Climate Change Policies (CCPs) on green innovation, for a sample of advanced and emerging market economies, and five economic sectors, during the period 2000-2021. Our results suggest that CCPs positively affect the production of green patents, with the effect intensifying gradually over time. The effect is larger for non-market-based and technology support policies-such as emission limits, feed tariffs and R&D subsidies-in countries with greater competitiveness and during periods of stronger economic activity-that is, higher GDP growth, lower uncertainty and financial stress. The results based on a difference-indifferences approach suggest that the positive effect of stricter CCPs on green innovation is stronger in sectors with limited financial constraints.