NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Joseph S. Shapiro

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Working Papers

May 2016The Incidence of Carbon Taxes in U.S. Manufacturing: Lessons from Energy Cost Pass-Through
with Sharat Ganapati, Reed Walker: w22281
This paper estimates how increases in production costs due to energy inputs affect consumer versus producer surplus (i.e., incidence). In doing so, we develop a general methodology to measure the incidence of changes in input costs that can account for three first-order issues: factor substitution amongst inputs used for production, incomplete pass-through of input costs, and industry competitiveness. We apply this methodology to a set of U.S. manufacturing industries for which we observe plant-level output prices and input costs. We find that about 70 percent of energy price-driven changes in input costs are passed through to consumers. This implies that the share of welfare cost borne by consumers is 25-75 percent smaller (and the share borne by producers is correspondingly larger) than ...
January 2015Why is Pollution from U.S. Manufacturing Declining? The Roles of Trade, Regulation, Productivity, and Preferences
with Reed Walker: w20879
Between 1990 and 2008, air pollution emissions from U.S. manufacturing fell by 60 percent despite a substantial increase in manufacturing output. We show that these emissions reductions are primarily driven by within-product changes in emissions intensity rather than changes in output or in the composition of products produced. We then develop and estimate a quantitative model linking trade with the environment to better understand the economic forces driving these changes. Our estimates suggest that the implicit pollution tax that manufacturers face doubled between 1990 and 2008. These changes in environmental regulation, rather than changes in productivity and trade, account for most of the emissions reductions.
January 2013Adapting to Climate Change: The Remarkable Decline in the U.S. Temperature-Mortality Relationship over the 20th Century
with Alan Barreca, Karen Clay, Olivier Deschenes, Michael Greenstone: w18692
Adaptation is the only strategy that is guaranteed to be part of the world's climate strategy. Using the most comprehensive set of data files ever compiled on mortality and its determinants over the course of the 20th century, this paper makes two primary discoveries. First, we find that the mortality effect of an extremely hot day declined by about 80% between 1900-1959 and 1960-2004. As a consequence, days with temperatures exceeding 90°F were responsible for about 600 premature fatalities annually in the 1960-2004 period, compared to the approximately 3,600 premature fatalities that would have occurred if the temperature-mortality relationship from before 1960 still prevailed. Second, the adoption of residential air conditioning (AC) explains essentially the entire decline in the temper...
August 2012Defensive Investments and the Demand for Air Quality: Evidence from the NOx Budget Program and Ozone Reductions
with Olivier Deschenes, Michael Greenstone: w18267
Willingness to pay for air quality is a function of health and the costly defensive investments that contribute to health, but there is little research assessing the empirical importance of defensive investments. The setting for this paper is a large US emissions cap and trade market - the NOx Budget Trading Program (NBP) - that has greatly reduced NOx emissions since its initiation in 2003. Using rich quasi-experimental variation, we find that the reductions in NOx emissions decreased the number of summer days with high ozone levels by about 25%. The NBP also led to reductions in expenditures on prescription pharmaceutical expenditures of about 1.9%. Additionally, the summer mortality rate declined by approximately 0.5%, indicating that there were about 2,200 fewer premature deaths per su...

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