Book excerpt: When the Supreme Court's majority ruling in NFIB v. Sebelius upheld the Patient Protection and Affordable Care Act (the PPACA, or Obamacare), it was clear that this major shift in American health care provision was here to stay. For better or worse, the PPACA is now both a target for, and a constraint on, the next wave of reformist ideas. Driven by curiosity about how the American health care regime will continue to evolve in the near and medium term, Dean Michael Schill and Professor Anup Malani of the University of Chicago Law School commissioned fourteen essays from leading scholars of law, economics, medicine, and public health that offer predictions for the most important issues and debates in health-care reform over the next five to seven years. Essays are arranged in five sections. Part I, ACA and the Law, sets the stage with three essays on legal challenges and justifications for the Act. Part II, ACA and the Federal Budget, explores the variety of potential fiscal consequences resulting from Obamacare. Part III, ACA and Health Care Delivery, offers competing viewpoints on what the Act will ultimately mean for consumers of health care. Part IV, Health Care Costs, Innovation, and the ACA speculates about what the altered financial structure of health care will mean for the pace of development of new medical technologies. Part V, ACA and Health Insurance Markets, concludes the volume with a pair of contrasting assessments of the prospects for the new insurance "exchange" markets.