This paper presents the first comprehensive estimates of the impact of U.S. biofuel subsidies on greenhouse gas emissions. Although U.S. support for biofuels is large and growing, the associated impact on greenhouse gas emissions remains unclear. The effect of biofuel subsidies on emissions is determined by the relative magnitudes of countervailing substitution and price effects….
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Evaluating Renewable Portfolio Standards for In-State Renewable Deployment: Accounting for Policy Heterogeneity
Renewable portfolio standards (RPS) are the most common state-level policies for promoting renewable electricity in the United States. State RPS policies are heterogeneously designed, particularly with respect to their use of flexibility mechanisms that allow obligations to be met with renewable energy generated in other states. However, the renewable energy that is produced within an…