Prevalence and extent of volume discounts in US fast-food restaurants

Leah Rimkus, MPH, RD1, Lisa M. Powell, PhD1, Zeynep Isgor, PhD2, Dianne C. Barker, MHS3 and Frank J. Chaloupka, PhD1
(1)University of Illinois at Chicago, Chicago, IL, (2)Institute for Health Research and Policy, Chicago, IL, (3)Barker Bi-Coastal Health Consultants, Inc., Calabasas, CA