Using patent data from 1978 to 2019 across 1,881 regions, we estimate the maindeterminants of innovation in energy storage. Our results highlight the role of energyprices and past innovation in shaping innovation. Specifically, a one-unit increase inelectricity prices leads to a 15.54% reduction...

Using firm-level patent data from 1978 to 2015, I examine the impact of market-based environmental policies on innovation in energy storage. My results highlight the role of environmental taxes, feed-in tariffs for solar energy and tradable certificates for CO2 emission to promote firms’...