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Insights in the Economics of Aging$
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David A. Wise

Print publication date: 2017

Print ISBN-13: 9780226426679

Published to Chicago Scholarship Online: September 2017

DOI: 10.7208/chicago/9780226426709.001.0001

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PRINTED FROM CHICAGO SCHOLARSHIP ONLINE (www.chicago.universitypressscholarship.com). (c) Copyright University of Chicago Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CHSO for personal use.date: 20 September 2021

Movies, Margins, and Marketing

Movies, Margins, and Marketing

Encouraging the Adoption of Iron-Fortified Salt

Chapter:
(p.285) 9 Movies, Margins, and Marketing
Source:
Insights in the Economics of Aging
Author(s):

Abhijit Banerjee

Sharon Barnhardt

Esther Duflo

Publisher:
University of Chicago Press
DOI:10.7208/chicago/9780226426709.003.0010

A set of randomized experiments shed light on how markets and information influence household decisions to adopt nutritional innovations. Of 400 Indian villages, we randomly assigned half to an intervention where all shopkeepers were offered the option to sell a new salt, fortified with both iron and iodine (and not just iodine) at 50% discount. Within treatment villages, we conducted additional interventions: an increase in retailer margin (for one or several shopkeepers), the screening of an “edutainment” movie on the benefits of double-fortified salt, a flyer informing households of the product’s availability, and free distribution to a subset of households. We find that two interventions—showing the short film and offering an incentive to all shopkeepers—significantly increased usage: both by 5.5 percentage points, or over 50%, over take up without intervention, three years after launch. For comparison, only about half of households given the salt for free actually consumed it.

Keywords:   health behavior, nutrition, economic development, marketing, microeconomic analyses

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