We study the impact of environmental regulations on the patent activities for wind turbines between 1980 and 2008. We explicitly control for energy market liberalisation and take a potential interaction between liberalisation and policy instruments into account. We find a strong and highly...

We study the impact of environmental regulations on the patent activities for wind turbines between 1980 and 2008. We explicitly control for energy market liberalisation and take a potential interaction between liberalisation and policy instruments into account. We find a strong and highly...

The paper examines the effects of the degree of competition on the firms' decision to innovate in differentiated markets. We find that a low (high) degree of product differentiation (competition) weakly supports the introduction of new products. Firms' weakly favour a process innovation if the...