During the last 10 years, I have spent most of my research time on the economics of climate change. Basically all of it has been done together with my colleagues Per Krusell at IIES and Conny Olovsson at Sveriges Riksbank. Being a truly cross-disciplinary field, the close interaction with many...

The major greenhouse gases, CO2 and CH4, are uniformly mixing, but spatial inequalities in emissions do matter in terms of both efficiency and equity of environmental policy formation and implementation. As the recent evidence has mainly focused on convergence issues between countries, this...