When Filipe Santos began teaching Social Enterprise at INSEAD in 2004 very few of his students had any interest in developing businesses which had a social impact. Now more than 30 percent of his students want to make a social difference. “The time is ripe for a new social impact model,” says Santos. “We see a lot of problems in developed and developing countries that are not being addressed by markets. It’s not just poverty, it’s about things breaking down around long-term unemployment, exclusion from society, healthcare.