Tracing the path that market practices have taken from Adam Smith in the eighteenth century into twenty-first-century health care, Daniel Callahan and Angela A. Wasunna compare the different approaches taken in the market debate by health care economists, conservative market advocates, and liberal supporters of single payer or government-regulated systems.

Daniel Callahan is the director of International Programs and Angela A. Wasunna is assistant director of International Programs at Pfizer, Inc.