Major disasters generate an outpouring of relief immediately after they occur, and rightly so. But the real measure of support is whether or not it improves people’s lives over time. Four years ago Haiti was rocked by 7.0-magnitude earthquake, leaving widespread devastation in its wake. Much went wrong in the initial aftermath as agencies scrambled to bring humanitarian aid to victims. However, one thing that went right is the Yunus Social Business Haiti (YSB Haiti) program. Formed two weeks....