This paper provides a unified vision of a number of results that appeared in three separate streams of literature. The author emphasizes the strong parallelism between the results obtained in a number of papers that analyzed the relationships between price cap regulation, welfare maximization,...

In this note we extend the analysis developed by Helm (2003) and consider an international emissions trading system (ETS) where the initial allocation of tradeable permits may be chosen non cooperatively, as in Helm, or cooperatively. We first derive conditions guaranteeing that polluting firms...

Most tradable permit regimes have ignored the role of emission allowance taxation whereas the OECD and the European Union have emphasized the need for further investigation of the related efficiency and effectiveness consequences. The aim of our paper is to take a first step in this direction....

In this paper we characterize the preferences of a pessimistic social planner concerned with the potential costs of extreme, low-probability climate events. This pessimistic attitude is represented by a recursive optimization criterion à la Hansen and Sargent (1995) that introduces...

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...