DEVRAJ : So today, we're going to have sort of a different kind of class since it's the last class. Today, I'm going to talk about essentially how we bring to bear the set of issues we've talked about this semester to a real-world topic, and actually, how it plays out in policy and practice. And I'll draw on some of my own experience, having applied the kind of tools we learned in 14.01 to the field of health care economics for 25 years, and how that has led me to be able to help in the development of health care policy in the US, and talk about sort of where health care policy stands at this point. So let's get a little bit of background about health care in the US. Basically, when we're talking about health care in the US, we have to recognize that the US spends, by far, the most money on health care of any developed nation in the world. We spend about 17 and 1/2% of our gross domestic product on health care. That amounts to almost $10,000 per man, woman, ...