Brigham and Women's Healthy Weight Study

"A deposit contract (DC) is an agreement in which study participants puts their own money at risk, with the goal of earning it back by achieving a goal, in this case maintaining prior weight loss. If DC participants successfully maintain their weight, they get their money back. If they are not successful, they lose their money. For each 10 week period for one year, DC participants will make a deposit of at least $100 but will be allowed to increase their contribution if they would prefer."