Spence is noted for his job-marketsignaling model, which inspired research into this branch ofcontract theory. In this model, employees signal their respective skills to employers by acquiring a certain degree of education, which is costly to them. Employers will pay higher wages to more educated employees, because they know that the proportion of employees with high abilities is higher among the educated ones, as it is less costly for them to acquire education than it is for employees with low abilities. For the model to work, it is not even necessary for education to have any intrinsic value if it can convey information about the sender (employee) to the recipient (employer) and if the signal is costly.
Spence attendedPrinceton University as an undergraduate student and graduated summa cum laude with a B.A. in philosophy in 1966, completing a senior thesis titled "Freedom and Determinism".[7] Spence then studied atMagdalen College,University of Oxford as aRhodes Scholar, and received a B.A./M.A. in mathematics in 1968.[8] Spence then began graduate studies in economics at Harvard University with the support of a Danforth Graduate Fellowship in the fall of 1968. He received a Ph.D. in economics in 1972, completing a dissertation titled "Market signalling" under the supervision ofKenneth Arrow andThomas C. Schelling.[9] Spence was awarded the David A. Wells Prize for outstanding doctoral dissertation in 1972.
He is a senior fellow atStanford University'sHoover Institution and the Philip H. Knight Professor Emeritus of Management in the Graduate School of Business. Spence is also a Commissioner for the Global Commission on Internet Governance.[14][15] Additionally, Spence is also a member of theBerggruen Institute's 21st Century Council.[16][17]
He is the author of three books and 50 articles, and has also been a consistent contributor toProject Syndicate, an international newspaper syndicate, since 2008. Among his beliefs are thathigh-frequency trading should be banned.[18]
Spence had bothBill Gates andSteve Ballmer in a graduate-level economics class at Harvard. In a 1999Fortune interview, however, Gates and Ballmer admitted not attending class and passing only after cramming for four days before the final.[19]