Since 2006, U.S. households have received more than $18 billion in federal income tax credits for weatherizing their homes, installing solar panels, buying hybrid and electric vehicles, and other "clean energy" investments. We use tax return data to examine the socioeconomic characteristics of...

Over the last two decades, U.S. households have received $47 billion in tax credits for buying heat pumps, solar panels, electric vehicles, and other "clean energy" technologies. Using information from tax returns, we show that these tax credits have gone predominantly to higher-income...

Despite increasing calls for reform many countries continue to provide subsidies for gasoline and diesel. This paper quantifies the external costs of global fuel subsidies using the latest available data and estimates from the World Bank and International Monetary Fund. Under preferred...

By 2015, global oil consumption will reach 90 million barrels per day. In part, this high level of consumption reflects the fact that many countries provide subsidies for gasoline and diesel. This paper examines global fuel subsidies using the latest available data from the World Bank, finding...

The prospects for a revival of nuclear power were dim even before the partial reactor meltdowns at the Fukushima nuclear plant. Nuclear power has long been controversial because of concerns about nuclear accidents, proliferation risk, and the storage of spent fuel. These concerns are real and...

While public discussion of HR 2454 (the "Waxman Markey" bill) has focused on the cap-andtrade program that would be established for carbon emissions, the bill also includes provisions that would tighten energy efficiency standards for consumer appliances. Supporters argue that appliance...

This paper uses fare changes in Mexico City, Guadalajara, and Monterrey to estimate the price elasticity of demand for urban rail transit. In two of the cases there is a significant fare increase (30%+), and in the third there is a 60-day fare holiday. Ridership responds sharply in the expected...

The percentage of U.S. homes heated with electricity has increased steadily from 1% in 1950, to 8% in 1970, to 26% in 1990, to 39% in 2018. This paper investigates the key determinants of this increase in electrification using data on heating choices from millions of U.S. households over a...

One concern with subsidies for low-carbon technologies is that they tend to go predominantly to high-income households. Previous research has shown, for example, that the top income quintile receives 60% of subsidies for rooftop solar and 90% of subsidies for electric vehicles. This paper finds...

With dramatic declines in the cost of solar PV technology over the last 5 years, the electricity industry is in the midst of discussions about whether to use this low-polluting renewable energy source in grid-scale generation or in distributed generation (DG), mostly with rooftop solar PV....