The five traditional pillars of the Arizona economy are:
The Arizona "C's" were taught to Arizona school children as the basis of Arizona's economy. Anyone growing up in Arizona from the 1950s through the 1970s knows about the five C's. These elements are no longer the basis of Arizona's economy.
Arizona Secretary of State's Office web site: http://www.azsos.gov/public_services/kids/five_Cs.htm
"State economy has new pillars." Arizona Daily Star. November 1, 2007. Page D1.