Author
Khan, Romana, Misra, K.
Publication Date
2016-01
Publication Place
-
Wiley
Subject
Fat tax, Obesity, Elasticity, Milk pricing, Quasi experiment
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1526-548X
Record ID
ee840b8e-1835-4624-8048-d5c739dac44b
Library Location
Business Administration
Date
2016-01
Sample Text
Of the many proposals to reverse the obesity epidemic, the most contentious is the use of price-based interventions such as the fat tax. Previous investigations of the efficacy of such initiatives in altering consumption behavior yielded contradictory findings. In this article, we use six years of point-of-sale scanner data for milk from a sample of over 1,700 supermarkets across the United States to investigate the potential of small price incentives for inducing substitution of healthier alternatives. We exploit a pricing pattern particular to milk in the United States, whereby prices in some geographical regions are flat across whole, 2%, 1%, and skim milk; whereas in other regions they are decreasing with the fat content level. The prevailing price structure is determined at a chain and regional level, and is independent of local demand conditions. This exogenous variation in price structure provides a quasi-experimental set-up to analyze the impact of small price differences on substitution across fat content. We use detailed demographics to evaluate price sensitivity and substitution patterns for different socioeconomic groups. Results show that small price differences are highly effective in inducing substitution to lower calorie options. The impact is highest for low-income households who are also most at risk for obesity. Our results suggest that a selective taxation mechanism that lowers the relative prices of healthier options, such that those price changes are reflected in shelf prices at the point-of-purchase, can serve as an effective health policy tool in the efforts to control obesity.
DOI
10.1287/mksc.2015.0917
Cilt
35
