Age: 61
Occupation: Founder and director of Washington University's Center for Social Development
Previous TIME 100 Appearances: 0
As the creator of individual development accounts, Sherraden has long argued that the poor can save significant assets with the right jump start. His ideas have been adopted in the U.S. and around the world, most notably with the U.K.'s Child Trust Fund, which starts a savings account for every child born.