The combined population of the Triangle metro areas puts them in the same class as New York, Los Angeles and Chicago and includes Austin, Dallas-Fort Worth, Houston and San Antonio.  These 4 largest metros in TX, function as one large economic entity with each playing complementary roles.  Together, they represent 68% of Texas of 73% of the state’s income.   There is weakness of the service sector, such as banking as these higher-order, white-color services are NOT exported to the rest of the country.  COMPLICATED, BUT INTERESTING!