 Because tortillas are the main food product consumed by Mexico's poorest people, national concern over the rising prices immediately generated political pressures for Calderón's administration.President Calderón opted for using price ceilings for tortillas that protect local producers of corn.This price control came in the form of a "Tortilla Price Stabilization Pact" between the government and many of the main tortilla producing companies, including Grupo Maseca and Bimbo, to put a price ceiling at MXN 8.50 per kilogram of tortilla.