Economists promote energy taxes as cost-effective. But policymakers raise concerns about their regressivity, or disproportional burden on poorer families, preferring to set energy efficiency standards instead. I first show that in theory, regulations targeting energy efficiency are more...

Many countries have adopted policies designed to reduce CO2 emissions from road vehicles. Taxes linked to the CO2 emissions rate or the fuel economy of a vehicle (which is inversely related to its CO2 emissions rate) are examples of such policies. These taxes are usually imposed on new vehicles,...

In 2008, the government of the province of British Columbia broke new ground in North America by introducing a revenue-neutral carbon tax on fossil fuels. The initial rate was set at $10/ton of CO2 which was then increased annually by $5 increments to reach $30/ton in 2012. We focus on monthly...

We investigate how the pass-through rate of commodity taxes depends on competition in a setting where consumers have imperfect information about prices. We use a theoretical search model that has two key predictions: First, the larger the number of price sensitive consumers, the higher the...