Income and Health Spending: Evidence from Oil Price Shocks

Health expenditures as a share of GDP in the United States have more than tripled over the past half-century. A common conjecture is that this is a consequence of rising income. We investigate this hypothesis by instrumenting for local area income with time series variation in oil prices interacted...

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Bibliographic Details
Main Authors: Acemoglu, Daron, Finkelstein, Amy, Notowidigdo, Matthew J.
Other Authors: Massachusetts Institute of Technology. Department of Economics
Format: Article
Language:en_US
Published: MIT Press 2014
Online Access:http://hdl.handle.net/1721.1/83903
https://orcid.org/0000-0002-9941-6684
https://orcid.org/0000-0003-0908-7491
Description
Summary:Health expenditures as a share of GDP in the United States have more than tripled over the past half-century. A common conjecture is that this is a consequence of rising income. We investigate this hypothesis by instrumenting for local area income with time series variation in oil prices interacted with local oil reserves. This strategy enables us to capture both partial equilibrium and local general equilibrium effects of income on health expenditures. Our central income elasticity estimate is 0.7, with 1.1 as the upper end of the 95% confidence interval, which suggests that rising income is unlikely to be a major driver of the rising health expenditure share of GDP.