We show how corrective taxation can improve the efficiency properties of tradable quotas systems affected by market power. Indeed, when only a subset of firms are price takers while the remaining firms enjoy market power, we show that, if the regulator sets an ad hoc taxation on firms' traded...

The traditional normative analysis of government policy towards addictive bads is carried out in the context of a 'rational addiction' model, whereby the only role for government is in correcting the external costs of consumption of such goods. But available evidence is at least as consistent,...

This commentary reflects on the recommendations of the Mirrlees Review on tax reform with a special focus on capital income taxation. Regarding the alternatives of moving to a consumption based tax system, the commentary discusses the relative merits of choosing an ACE system (allowance for...