(University of California - San Diego) Economists and business leaders agree that innovation is a major force behind economic growth, but many disagree on what is the best way to encourage workers to produce the 'think-outside-of-the-box' ideas that create newer and better products and services. New research from the University of California San Diego indicates that competitive 'winner-takes-all' pay structures are most effective in getting the creative juices flowing that help fuel economic growth.