This paper investigates the determinants of directed technical change at the firm level in the electricity generation sector. We use firm-level data on patents filed in renewable (REN) and fossil fuel (FF) technologies by 5,261 European firms over the period 1978-2006. We investigate how energy...

This paper investigates the determinants of directed technical change at the firm level in the electricity generation sector. We use firm-level data on patents filed in renewable (REN) and fossil fuel (FF) technologies by 5,261 European firms over the period 1978-2006. We investigate how energy...

This paper investigates the determinants of directed technical change in the electricity generation sector. We use firm-level data on patents led in renewable (REN) and fossil fuel (FF) technologies by about 7,000 European firms over the period 1978-2006. We separately study specialized firms...

This study investigates if firms' involvement in patent litigation as alleged infringers hinders their innovation. I develop a simple model that predicts a decrease in innovation following patent litigation. I investigate the model's implications in a sample of publicly listed US firms, using a...