The Steven Agee Economic Research and Policy Institute at Oklahoma City University conducted a study to calculate the impact Oklahoma Native American tribes have on the state economy. Its findings show the Chickasaw Nation supports the Oklahoma economy by contributing $2.4 billion in goods and services, employing over 10,000 people in Oklahoma and supporting an additional 6,000 jobs. Brett Joplin, Account Payable Manager for the Chickasaw Nation Department of Treasury, explains how the Chickasaw Nation is a positive force in the communities in which it does business.