Joey Hundert — social entrepreneur, start-up consultant and founder of the “Sustainival,” the world’s first green carnival — has been working for a decade and a half to promote ventures that both make money and make the world a better place. And, when he can, he spends some time at Wharton as the School’s social entrepreneur in residence. In a recent interview, Wharton management professor Tyler Wry talked with Hundert about his experience as an entrepreneur, the social enterprise energy among students, and what it takes to succeed in a business that has dual social and financial aspirations. An edited transcript of the conversation appears below. Tyler Wry: Let’s start with some background. Tell us a bit about how you got into social enterprise, and what brought you to Wharton. Joey Hundert: I came here about four years ago, to guest lecture in one of your classes…. [Since then,] I’ve become sort of the social entrepreneur in residence.…