| Abstract: | This paper provides simple formulas for adjusting the costsof carbon taxes and tradable carbon permits to account for interactionswith pre-existing tax distortions in the labour market. Bothpolicies reduce labour supply as they increase product pricesand reduce real household wages; the resulting efficiency lossesin the labour market can be substantial relative to partialequilibrium abatement costs. However, much of this added costcan be offset, and perhaps more than offset when additionaldistortions from the tax system are considered, if revenuesfrom carbon taxes or auctioned permits are used to reduce distortionarytaxes. Consequently, there can be a strong case on efficiencygrounds for using carbon taxes or auctioned permits over grandfatheredcarbon permits. |
