Trade liberalization and the choice of pollution abatement

It is well known that a consumer price-neutral reform of consumption taxes and import tariffs is welfare-improving. This paper shows that such price controls are inferior to quantity controls in terms of welfare improvement. The paper next turns to a comparison of different abatement strategies. Whether or not policy changes should fix private abatement or public abatement relates to the level of earmarking, and depends on the relationship between private production and public abatement. There are cases in which increased public abatement only improves welfare by more than both increased private and public abatement together. The paper recommends that environmental earmarking in the form of public abatement should be delivered to cushion price hikes and sustain private energy consumption.