Fast Food, Addiction, and Market Power
By: Richards, Timothy J.; Patterson, Paul M.; Hamilton, Stephen F.
Richards, Timothy J.; Patterson, Paul M.; Hamilton, Stephen F., Fast Food, Addiction, and Market Power, Journal of Agricultural and Resource Economics, Volume 32, Issue 3, December 2007, Pages 425-447
Many attribute the rise in obesity since the early 1980's to the overconsumption of fast food. A dynamic model of a different-product industry equilibrium shows that a firm with market power will price below marginal cost in a steady-state equilibrium. A spatial hedonic pricing model is used to test whether fast food firms set prices in order to exploit their inherent addictiveness. The results show that firms price products dense in addictive nutrients below marginal cost, but price products high in nonaddictive nutrients higher than would be the case in perfect competition.