How do airlines cut fuel usage, reducing their carbon emissions?

Abstract

Airline fuel consumption is costly for the firms and for society as well due to a climate-change externality. We study how fuel-price changes affect cost-minimizing choices by airlines that have implications for the extent of this externality. The airline industry’s capital stock can be easily inventoried as a set of long-lived, durable aircraft. This portfolio approach allows us to study the utilization and composition of the capital stock at a highly disaggregated level. Changes in airline operations directed toward conserving fuel can be an important path toward lower emissions.

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