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Search our database of 842 randomized evaluations conducted by our affiliates in 80 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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Environment & Energy

Reducing Energy Consumption and Greenhouse Gas Emissions through Energy Efficient Retrofits: Evidence from Low-Income Households

Can encouraging low-income households to participate in a subsidized weatherization program help increase energy efficiency?

Environment & Energy

The Lightbulb Paradox: Consumer Behavior and Public Policy in the U.S. Electricity Market

Hunt Allcott , Dmitry Taubinsky

Energy-efficient technologies, such as compact fluorescent lightbulbs (CFLs), have the potential to save consumers money, but their adoption remains low. Researchers evaluated the impact of information and price on demand for CFLs in two contexts: an online survey platform and a typical retail setting. Information and subsidies increased consumers’ willingness to purchase CFLs. Researchers...

Environment & Energy

Opower: Evaluating the Impact of Home Energy Reports on Energy Conservation in the United States

Hunt Allcott , Todd Rogers

Researchers studied the short- and long-run effects of these reports on electricity use and found that reports reduced energy consumption by about 2 percent across twelve utilities.

Environment & Energy

The Impact of Real-Time Electricity Pricing in the United States

During periods of high electricity use that strain the grid, electricity customers do not have any reason to conserve because they pay a fixed price per kilowatt hour of power. In this study, the researcher evaluated the impact on electricity usage of a real-time pricing scheme, which charges households different prices throughout the day based on fluctuating wholesale costs. Households charged...

Environment & Energy

Distributing Pollution Rights in Cap-and-Trade Programs in the United States

Meredith Fowlie , Jeffrey Perloff

Researchers evaluated a cap-and-trade program in the United States to determine if the initial allocation of permits among firms affected how much firms decided to pollute. Evidence was consistent with, but not proof of, the economic theory that firms make decisions to reduce emissions based on their abatement costs and not the initial distribution of permits.