U.S. Chamber of Commerce Foundation, “The Millennial Generation Research Review” Sally Seppanen and Wendy Gualtieri, 2009-2012.

Ad Age, “Millennials Want to Party With Your Brand But On Their Own Terms” Erin Mulligan Nelson, August 2012.

U.S. Census Bureau, “Census Explorer: Young Adults: Then and Now Edition” American Community Survey, 2009-2013.

U.S. Census Bureau, “U.S. Population Estimates by Single Year of Age” July 2013.

Forbes, “Tight Budgets Don’t Mean Millennials Won’t Pony Up for iPhones and Chipotle” October 2013.

Boston Consulting Group Center for Consumer and Customer Insight, “The Reciprocity Principle: How Millennials Are Changing the Face of Marketing Forever” January 2014.

Pew Research Center, “The Rising Cost of Not Going to College” February 2014.

Pew Research Center, “Millennials in Adulthood” March 2014.

The Vision Council’s VisionWatch U.S. Eyewear Study, September 2014.

Young Invincibles, “Where Do Young Adults Work?” Tom Allison and Konrad Mugglestone, November 2014.