From bluejackets.nhl.com:
Columbus Blue Jackets and Nationwide Arena Represent More Than $2 Billion Economic Impact in Columbus
The Columbus Blue Jackets and Nationwide Arena have driven an economic impact in excess of $2 billion since 2000, according to a new study released April 22. Economic impact studies conducted by the John Glenn School of Public Affairs at The Ohio State University also reveal the significance of the National Hockey League franchise and arena as a catalyst for development of downtown Columbus and the Arena District, where 7,000 people are now employed.