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Working Paper
Global Transportation Decarbonization
A number of policy proposals call for replacing fossil fuels in the name of decarbonization, but these fuels will be difficult to replace due to their as-yet unrivaled bundle of attributes: abundance, ubiquity, energy density, transportability and cost. There is a growing commitment to electrification as the dominant decarbonization pathway for transportation. While deep electrification is promising for road vehicles in wealthy countries, it will face steep obstacles. In other sectors and in the developing world, it’s not even in pole position. Global transportation decarbonization will ...
Working Paper
The Income Share of Energy and Substitution: A Macroeconomic Approach
As the atmospheric concentration of CO2 emissions has grown to record levels, callshave grown for governments to make steeper emissions cuts, requiring to reduce an economy’s use of fossil energy dramatically. Meanwhile, in the U.S., fossil energy still met 80percent of the total energy demand as of 2019. This paper examines U.S. energy dependence, measured by its factor share, using a simple neoclassical framework in a systematicway. We find that with empirically plausible differences in substitution elasticities, particularly with a time-varying substitution elasticity between equipment ...
Working Paper
The Role of Technology and Energy Substitution in Climate Change Mitigation
Mitigating climate change is critically linked to reducing an economy’s reliance on fossil energy. This paper examines U.S. energy dependence, measured by its factor share, using a neoclassical framework in a systematic way. We propose substitution as a simple, explicit economic mechanism for climate change mitigation and understanding energy-saving technical change in terms of observed factor quantities. We show that with time-varying capital equipment and energy substitutability, changes in observed inputs alone can account for most of the variations in the income share of energy over the ...
Working Paper
The Effect of the Conservation Reserve Program on Rural Economies: Deriving a Statistical Verdict from a Null Finding
This article suggests two methods for deriving a statistical verdict from a null finding,allowing economists to more confidently conclude when ?not significant" can in fact be interpreted as ?no substantive effect." The proposed methodology can be extended to a variety of empirical contexts where size and power matter. The example used to demonstrate the method is the Economic Research Service's 2004 Report to Congress that was charged with statistically identifying any unintended negative employment consequences of the Conservation Reserve Program (the Program). The report failed to ...