The Price of Everything is the story of Ramon Fernandez, a tennis prodigy about to graduate from Stanford and selected to give a commencement speech. At the beginning of the novel, an earthquake rocks the Bay Area and Fernandez and his girlfriend finish their dinner by candlelight and then head to Home Depot for some flashlights. But by the time they get there, they're sold out. So the couple drives out to Hayward, the nearest location of Big Box--which has plenty of stock but which has doubled its prices in the wake of the disaster. Fernandez picks up what he needs but is upset by the plight of a poor woman who didn't bring enough money for baby food and diapers ("How could she have known that Big Box would gouge her with doubled prices?") and ends up rallying a group of people in the parking lot.
Fernandez ends up getting a personalized economics seminar from the provost of the university, Ruth Lieber, a woman truly excited about teaching. And she, along with the ensuing events, changes both Fernandez's mind and his life.
Much of the novel is a one-on-one discussion about how price signals create a market more efficient than central planning could ever do, and Roberts is good at illustrating this difficult concept. There are many examples of how the same unplanned order arises in the natural world, both explicit and implicit--for example, a flock of birds with a common goal, or dancing couples in a nightclub. But it's not strictly a series of lectures. The story of a born teacher, full of passion about even her very last student, and a young man about to go out into the world, is also fully realized.
I wouldn't say this is a novel that should be read just for fun, unless you are as dorky as me and really think this stuff is fun. But if you've ever thought about picking up a book like Freakonomics and aren't so into nonfiction, or if you've read one of the recent pop economics books and want something more basic than the flashy examples often written about, this would be a great place to start.