This paper analyses the impact of changes in environmental regulations on productivity growth at country- and firm-level. We exploit several data sources and the environmental policy stringency index, to evaluate the Porter hypothesis, according to which firms' productivity can benefit from more...

We examine the extent to which environmental regulation affects innovation and which policy types provide the strongest incentives to innovate. Using a local projection framework, we estimate the regulatory impact on patenting activity over a five-year horizon. As a proxy for environmental...

This paper analyses the impact of changes in environmental regulations on productivity growth at country- and firm-level. We exploit several data sources and the environmen-tal policy stringency index, to evaluate the Porter hypothesis, according to which firms’ productivity can benefit from...