Who Is Michael Spence?

(Andrew) Michael Spence is an economist best known for his theory of job-market signaling. Spence was awarded the 2001 Nobel Memorial Prize in Economic Sciences for this theory.

Key Takeaways

  • Michael Spence is an economist who won the Nobel Prize in 2001 for his theory of market signaling.
  • Spence has also done research on development economics and the implications of monopolistic competition.
  • He is currently a professor of economics at New York University.

Understanding Michael Spence

Born in 1943 in New Jersey, Spence grew up in Canada. He studied at Princeton University, the University of Oxford, and Harvard University.

His early work earned Spence the John Bates Clark Medal of the American Economic Association, which was awarded to an American economist under 40 years of age who was deemed to have made the most important and valuable contributions to the areas of economic knowledge and insight. Spence has earned an assortment of other prestigious awards, including the John Kenneth Galbraith Prize for excellence in teaching and the David A. Wells Prize for the outstanding doctoral dissertation at Harvard. 

In 2001, Spence earned a Nobel Prize, officially titled The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel, for his analysis of information asymmetry. His work specifically focused on how individuals can use their education credentials as a signal to potential employers. He was awarded the Nobel Prize jointly with George Akerlof and Joseph Stiglitz, professors at University of California at Berkeley and Columbia University, respectively.

Michael Spence is currently an economics professor at New York University Leonard N. Stern School of Business, where he has served as a professor since 2010. Spence has also taught at Harvard University and served as the Philip H. Knight Professor Emeritus of Management in the Graduate School of Business at Stanford University. 

In addition, he is a senior fellow at the Hoover Institution, a Stanford-based free-market think tank. Spence has also served on the editorial boards of several economics and financial publications, including the Journal of Economic Theory and American Economics Review, and also serves on the boards of several economics councils, including the National Research Council Board on Science, Technology, and Economic Policy.

Contributions

Spence's research subjects include information economics, development economics, monopolistic competition, and industrial organization.

Information Economics

Spence is most well known for his theory of market signaling under conditions of asymmetric information. This model is mostly applied to labor markets, but it can be referred to in other market contexts. Market signaling can occur when a job candidate has better information about their own productivity than a prospective employer and productivity varies across different types of workers. Higher productivity candidates have an incentive to credibly communicate their type to the prospective employer by engaging in some costly activity that is only possible (or more likely possible) for a higher productivity employee. In Spence's original 1973 paper, this signal consisted of obtaining a college degree. By spending the time and money to complete a degree, an activity that requires a certain amount of skill, intelligence, work ethic, etc. to succeed at, a job market candidate can signal their higher productivity to prospective employers. It is important to note that the signal has value to the job candidate independent of any increase in skill or knowledge obtained in the course of their studies; they might not even gain any new skills, knowledge, or other increase in ability from their education. This is in contrast to previous (and still common) theories of education that explain it as an investment in human capital.    

Development Economics

Spence led important empirical investigations of development economics as Chair of the Commission on Growth and Developments, sponsored by several national governments and the World Bank between 2006 and 2010. In general, these studies documented the success of the export led growth strategy, finding that the 13 economies have consistently grown at an average rate of 7% or more per year since 1950 have all pursued the development strategy. 

Monopolistic Competition and Industrial Organization

Spence has published several theoretical papers on monopolistic competition, or markets characterized by firms who produce differentiated products. His models demonstrate how monopolistic competition can lead to distortion of markets and misallocation of resources (relative to perfect competition), which he argues might be remedied through various forms of regulation. His work in this topic was cited as part of his Bates Medal award from the AEA.