Professor Qin Gao, director of Columbia's China Center for Social Policy, explains the workings of the Chinese "Dibao" (limited income guarantee) system. "Dibao is doing relatively better than many other similar programs in developing countries," says Gao, yet it has limitations and some negative aspects. She also discusses Xi Jinping's ambitious goal to eradicate poverty by 2020, and the benefits of a Universal Basic Income (UBI) system.