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Working Paper
The Electric Ceiling: Limits and Costs of Full Electrification
Electrification is a centerpiece of global decarbonization efforts. Yet there are reasons to be skeptical of the inevitability, or at least the optimal pace, of the transition. We discuss several under-appreciated costs of full, or even deep, electrification. Consumer preferences can operate in favor of and in opposition to electrification goals; and electrification is likely to encounter physical and economic obstacles when it reaches some as-yet-unknown level. While we readily acknowledge the external benefits of decarbonization, we also explore several under-appreciated external costs. The ...
Journal Article
Drilling Productivity in the United States: What Lies Beneath
We construct new measures of drilling productivity and find that productivity increased sixfold from the mid-2000s to early 2017. Gains in below-ground efficiency?the number of barrels produced per foot of drilled wells?have largely driven this increase in overall productivity. The large oil price declines during the Great Recession and from 2014 to 2016 also played a role. However, further large increases in productivity are unlikely absent additional improvements in technology or a subsequent large downturn in oil prices.
Journal Article
Noteworthy: agriculture, Mexico, air traffic
Working Paper
Investing in the Batteries and Vehicles of the Future: A View Through the Stock Market
A large number of companies operating in the EV and battery supply chain have listed on a U.S. stock exchange in recent years. I compile a unique data set of high-frequency stock returns for those companies and investigate the extent to which an “industry” factor specific to the EV and battery supply chain (an “EV” factor) can explain their returns. Those returns are decomposed into systematic and idiosyncratic components, with the former given by a set of latent factors extracted from a large panel of stock returns using high-frequency principal components. It is found that a market ...
Working Paper
Closer to One Great Pool? Evidence from Structural Breaks in Oil Price Differentials
We show that the oil market has become closer to "one great pool," in the sense that price differentials between crude oils of different qualities have generally become smaller over time. We document, in particular, that many of these quality-related differentials experienced a major structural break in or around 2008, after which there was a marked reduction in their means and, in many cases, volatilities. Several factors explain these shifts, including a growing ability of the global refinery sector to process lower-quality crude oil and the U.S. shale boom, which has unexpectedly boosted ...