sentences:  Out of the total people living in poverty, 13.7% are under the age of 18 and 10.9% are 65 or older.The Northwest Arkansas economy was historically based upon agriculture and poultry.In recent decades, NWA has seen rapid growth and diversification of its economy based upon the three Fortune 500 companies based there, Walmart, Tyson Foods, and J.B. Hunt, while also seeing a growing University of Arkansas and cultural amenities sector.