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James Heckman (born April 19, 1944) is an economist at the University of Chicago. He was the winner of The Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel in 2000 for his pioneering work in econometrics and microeconomics. Heckman began his career at Colorado College Heckman then received his Ph.D. in economics from Princeton University in 1971, and served as an Assistant Professor at Columbia University before going to the University of Chicago.
Heckman is most famous for introducing the concept of " selection bias" into modern econometrics. The literature has always been complex, but the main idea is fairly simple. Economists routinely take data on wages to calculate average wages. Many subjects are unemployedIn economics, a person who is able and willing to work yet is unable to find a paying job is considered unemployed . The unemployment rate measures the number of unemployed workers as a proportion of the total civilian labor force, where the latter includ, and thus would have missing wages. Before Heckman, economists would simply discard all records with missing wages and then calculate averageIn mathematics, there are numerous methods for calculating the average or central tendency of a set of n numbers. The most common method, and the one generally referred to simply as the average is the arithmetic mean. Please see the table of mathematicals using the remaining observations. Heckman shows that this process can lead to selection biasBias has several different meanings, most relating to an offset or prejudice of some sort. Viewpoint A bias is a prejudice in a general or specific sense, usually in the sense for having a predilection to one particular point of view or ideology. One is s because observations do not have missing wages at random. For instance, poorer individuals of one group may be unemployed more often, so average wages may be too high for this group. Thus, Heckman's work has persuaded economists to treat missing observations more carefully. He has also pioneered the application of economics to econometrics and has conducted numerous empiricalEmpirical is an adjective often used in conjunction with science, both the natural and social sciences, which means an observation or experiment based upon experience that is capable of being verified or disproved. See also Empirical formula, Empirical kn studies.
Heckman served as an expert for the Copenhagen ConsensusCopenhagen Consensus is a Danish project which seeks to establish priorities for advancing global welfare using methodologies based on the theory of welfare economics. It was conceived and organized by Bjorn Lomborg and the rest of the Institute for Envir.
See also
- List of economistsEconomists are scholars conducting research in the field of economics. Alphabetical list Below is a list of well-known economists. For quick navigation, select one of these letters: A George Akerlof Maurice Allais Roy G D Allen Elisabeth Altmann-Gottheine
- List of economics consultancies and think tanksThis is a list of economic consultancies and think tanks Well-known think tanks Canada Atlantic Institute for Market Studies C. Howe Institute Canadian Institute of International Affairs Caledon Institute on Social Policy Canada West Foundation Canadian C
Heckman, James
Heckman, James
Heckman, James
