A conceptual framework is advanced that determines world biodiesel prices, the policy parameters in the country establishing the price, and the binding mandate or tax exemption. The effect of a tax credit differs with international trade compared to traditional closed economy analysis. The U.S....

The efficacy of alternative biofuel policies in achieving energy, environmental and agricultural policy goals is assessed using economic cost-benefit analysis. Government mandates are superior to consumption subsidies, especially with suboptimal fuel taxes and the higher costs involved with...

Impact evaluation based on randomized controlled trials (RCTs) offers a powerful tool that has fundamentally reshaped development economics by offering novel solutions to long-standing problems of weak causal identification. Nonetheless, RCTs suffer important and underappreciated pitfalls, some...

This paper uses an unprecedentedly rich data set to estimate the cost of agricultural cargo preference (ACP) restrictions on United States food aid programs, and to document some of the programs' competitiveness and national security impacts. ACP cost U.S. taxpayers $140 million in 2006, 46%...