With the help of a smartphone app, you can now order dinner, hire a driver, or even schedule a housecleaner. Whatever it is you need, there's probably an app for that. But does all this convenience come at a cost? This hour, the rise of the on-demand economy, and how it's changing the nature of work. How The Sharing Economy Is Reshaping Capitalism; America In The Age Of Instant Gratification; What It's Like To Work In The On-Demand Economy; Temporary And Part-Time: The Rise Of A New Precarious Workforce; Are Human Beings Actually Rational?; Why Do We Work?.