Pieroni, Luca; Lanari, Donatella; Salmasi, Luca - 2010
. Cross-price elasticities of unhealthy and healthy foods estimated by a demand system provide a consistent framework to … evaluate substitution effects, when a close association is assumed between unhealthy (healthy) foods and more (less) energy … food prices was found to produce nontrivial elasticities of substitution towards higher relative consumption of unhealthy …