Global environmental problems are often assumed to imply extensive inefficiencies since there is no global authority corresponding to the government at a national level. This paper shows, on the contrary, that rich countries in a free unregulated market may still undertake globally efficient...

This paper undertakes a social cost-benefit analysis regarding an increase in the number of electric vehicles in the Swedish transport sector by year 2010. Battery cars are generally found to be socially unprofitable, even though their private life-cycle costs and external costs are lower than...

This paper concerns optimal income taxation under asymmetric information in a two-type overlapping generations model, where people care about their relative consumption compared to others. The appearance of positional concerns affects the policy choices via two channels: (i) the size of the...

This paper derives Pareto efficient policy rules for the provision of national as well as global public goods in a two-country world, where each individual cares about relative consumption within as well as between countries. Furthermore, we compare these policy rules with those that follow from...

Previous studies on public policy under relative consumption concerns have ignored the role of leisure comparisons. This paper considers a two-type optimal nonlinear income tax model where people care both about their relative consumption and their relative leisure. Increased consumption...

This paper concerns optimal income taxation and provision of a state-variable public good under asymmetric information in a two-type overlapping generations model, where people care about their relative consumption. Each individual may compare his/her own current consumption with his/her own...