The 2014 Freelancing in America study, conducted by Edelman Berland, surveys over 5,000 U.S. adults and finds that 53 million people engage in freelance work, contributing approximately $715 billion to the economy. The study reveals a growing demand for freelance services, particularly among millennials, with 77% of freelancers optimistic about the future of freelancing. Key barriers include income stability and finding work, while drivers are primarily the desire for extra money and schedule flexibility.