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Biases in the healthcare luxury good hypothesis?: a meta-regression analysis

By Joan Costa-i-Font, Marin Gemmill and Gloria Rubert

Abstract

Although a growing literature examining the relationship between income and health expenditures suggests that healthcare is a luxury good, this conclusion is debatable owing to heterogeneity of the existing results. The paper tests the luxury good hypothesis (namely that income elasticity exceeds 1) by using meta-regression analysis, taking into consideration publication selection and aggregation bias. The findings suggest that publication bias exists, which is a result that is robust to the meta-regression model employed. Publication selection and aggregation bias also appear to play a role in the generation of estimates. The corrected estimates of income elasticity range from 0.4 to 0.8, which cast serious doubt on the validity of the luxury good hypothesis

Topics: HB Economic Theory, RA Public aspects of medicine
Publisher: Wiley on behalf of the Royal Statistical Society
Year: 2011
DOI identifier: 10.1111/j.1467-985X.2010.00653.x
OAI identifier: oai:eprints.lse.ac.uk:28989
Provided by: LSE Research Online
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