Tyler Cowen of George Mason U. and author of An Economist Gets Lunch, talks with EconTalk host Russ Roberts about food, the economics of food, and his new book. In this wide-ranging conversation, Cowen explains why American food was once a wasteland, the environmental impacts of plastic and buying local, why to stay away from fancy restaurants in the central city, and why he spent a month shopping only at an Asian supermarket while living in Northern Virginia.