In 1992, Phelps created the first edition of his textbook,
Health Economics, now in its 6th edition. It has been translated in various versions into French (1st edition), Chinese (2nd edition), Arabic (3rd edition), and Korean (5th edition). In 2010, Phelps authored the book
Eight Questions You Should Ask about Our Health Care System: (Even if the Answers Make You Sick). In 2017, with coauthor
Stephen T. Parente, PhD, Phelps published
The Economics of US Health Care Policy, a major analysis of the economic incentives within the U.S. healthcare system and recommendations for policy changes that would improve market efficiency and consumer well-being. In 2021, Phelps, with coauthor Guru Madhavan, PhD, analyzed the use of multi-criteria
decision analysis (MCDA) models. in their
Oxford University Press book entitled
Making Better Choices: Design, Decisions and Democracy. This work emphasized use of MCDA models when groups serve as the relevant decisionmaker, rather than the commonly assumed single-person decisionmaker, thus combining for the first time the separate fields of study of MCDA models and
social choice theory. In 2024, Phelps, with coauthor
Darius Lakdawalla, PhD, published
Valuing Health: The Generalized Risk-Adjusted Cost Effectiveness (GRACE) Model. This Oxford University Press book The GRACE model reverses previous (and incomplete) models of valuing healthcare that discriminate against disabled people. The GRACE model shows that health gains are greater for those in the worst health either from acute illness or pre-existing disability than for otherwise-similar people who are in better health. ==Recent and Current Activities==