Orley Ashenfelter

Orley Ashenfelter is an American economist renowned for pioneering the use of natural experiments and quasi-experimental methods in applied econometrics. He is the Joseph Douglas Green 1895 Professor of Economics at Princeton University, where he has been a faculty member since 1970, and served as the director of the Industrial Relations Section for over three decades. His influential work spans labor economics, particularly on wage determination, union effects, and discrimination, and he famously applied rigorous economic analysis to the study of fine wine, founding the journal Liquid Assets: The International Guide to Fine Wines. A co-founder of the American Law and Economics Association and a former president of the Society of Labor Economists, his methodological innovations, especially the difference-in-differences estimator, have become standard tools in empirical economic research.

Early life and education

Born in San Francisco, he completed his undergraduate studies at Amherst College, earning a Bachelor of Arts degree. He then pursued graduate work at the University of Michigan, where he studied under the renowned statistician George E. P. Box and received his Ph.D. in economics in 1970. His doctoral dissertation, which focused on racial discrimination in labor markets, foreshadowed his lifelong commitment to applying robust empirical methods to complex social questions. This foundational period at Michigan immersed him in the quantitative traditions that would define his career.

Academic career

Upon completing his doctorate, he joined the faculty of Princeton University in 1970, where he has remained for his entire academic career. He was appointed director of Princeton's Industrial Relations Section in 1971, a position he held with great distinction until 2005, building it into a world-leading center for empirical labor research. He has held visiting positions at institutions including the London School of Economics and Harvard University. Beyond his university role, he has been a prolific contributor to the National Bureau of Economic Research, serving as a research associate in its programs on Labor Studies and Law and Economics.

Research and contributions

His most celebrated contribution is the popularization and rigorous application of the difference-in-differences estimator, a quasi-experimental technique he used in a seminal 1978 study with David Card on the effects of the New Jersey minimum wage increase. This work, part of a broader movement toward causal inference, challenged conventional wisdom and established natural experiments as a cornerstone of modern empirical economics. He has made extensive contributions to understanding union impacts on wages, the economics of arbitration, and the analysis of antitrust damages in legal cases. In a famously interdisciplinary turn, he applied econometric forecasting models to Bordeaux wine prices, creating the "Ashenfelter equation" and bringing scientific analysis to the wine auction market.

Awards and honors

His research has been recognized with several of the economics profession's most prestigious awards. He received the Frisch Medal from the Econometric Society in 1992 for his influential article on natural experiments. In 2003, he was awarded the inaugural IZA Prize in Labor Economics from the Institute for the Study of Labor for his lifetime of contributions to the field. He is a Fellow of the Econometric Society, the Society of Labor Economists, and the American Academy of Arts and Sciences. He has also served as president of both the American Law and Economics Association and the Society of Labor Economists.

Personal life

He is known for his direct and engaging teaching style and for mentoring a generation of leading empirical economists, including David Card, who later won the Nobel Memorial Prize in Economic Sciences. An avid oenophile, his passion for wine economics is both a professional pursuit and a personal interest. He maintains an active role in academic life at Princeton University and continues to influence economic policy and legal reasoning through his ongoing research and commentary.

Category:American economists Category:Princeton University faculty Category:Labor economists