In today's Chai with Chaioffee episode our guest is Yangbo Du who is an economist from MIT, Boston. He is all into sustainability and social business. In today's episode we discuss a little bit of Couchsurfing followed by the 17 Sustainable Development Goals set by the UN and how they are one of the best business opportunities in today's world. If you are an MBA or business analyst who is inclined towards SDGs or social business, you don't really want to miss out on today's podcast.