Just inside the entrance to the Bodega Aurrera store in Mexico City's lower-class Naucalpan neighborhood sit two shopping carts filled with the same sampling of products--things like Kellogg's CornFlakes and a dozen eggs.
Kellogg has been the cereal industry's leader almost since the day W.K. Kellogg and his physician brother began selling cornflakes to former sanatorium patients in 1906.