During my four years working in Mexico for a U.S. bank, I recall two interesting reactions when Mexicans visited their friends or family in the U.S.    The first one is that they were overwhelmed by our interstate highway system.  I remember a Mexican friend asking: "Who built the roads?"  I explained the history of the interstates, and he replied by saying something along the line that it's nice to see your taxes doing something good. The second was that they were impressed by the number of gasoline stations and how people actually shopped for price.  The reason for this is that in Mexico, there is no shopping for gasoline, since all of the stations are owned by PEMEX, and they determine the price, too. "Cambio," or change, is coming to Mexico, as they say. Have you spoken with anyone from Mexico over the holidays?  Well, it's all about gasoline prices south of the border these days, as we can...(Read Full Post)