We have two answers to that question on this week’s show. First we’ll speak with Dan Biederman. He’s the co-founder of the Bryant Park Corporation in New York, a private organization that transformed Bryant Park from a dangerous and depressing eyesore to one of the best loved and most intensely used urban parks in the world.

We’ll also speak with Pamela Hartigan. She’s the founding director of Volans, a venture company dedicated to social innovation. She’s written a book about social entrepreneurs called “The Power of Unreasonable People.” We’ll speak with Pamela about the book and what Unreasonable People do to enrich and improve the world around them.

Smart City is a syndicated, weekly hour-long public radio talk show that takes an in-depth look at urban life: the people, places, ideas and trends that affect us all. Host Carol Coletta, president and CEO of CEOs for Cities, talks with national and international public policy experts, economists, business leaders, artists, developers, planners and others on the pulse of city life for a penetrating discussion on urban issues.

Smart City is broadcast at 6 a.m. Saturday and Sundays on WKNO-FM, but it is also webcast and podcast so you can listen to it anytime you like. For the webcast, times for the broadcast in other cities and to sign up for the podcast, visit our website.