Health Economics combines current economic theory, recent research, and health policy problems into a comprehensive overview of the field. This 6 th edition offers a thorough update of a classic and widely used text. Accessible and intuitive, early chapters use recent empirical studies to develop essential methodological foundations. Later chapters build on these core concepts to focus on key policy areas. Key changes to this edition include: additional discussion of the consequences of the Patient Protection and Affordable Care Act (PPACA), in light of current political changes; extensive discussion of quality measures; more discussion of preventive services; a new section on drug markets and regulation; discussion of Accountable Care Organizations (ACOs); and new references and problem sets.