Michael Keane (economist) explained

Birth Date:12 January 1961
Birth Place:Suffern, New York
Institution:Johns Hopkins University
Field:Econometrics
Doctoral Advisor:Robert A. Moffitt
Influences:Kenneth Wolpin
John Geweke
James Heckman
Contributions:Choice Modelling, Structural Modelling, Simulation Methods, Panel Data Econometrics
Repec Prefix:e
Repec Id:pke18

Michael Patrick Keane (born 1961) is an American-born economist; he is the Wm. Polk Carey Distinguished Professor at Johns Hopkins University. Keane was previously a professor at the University of New South Wales and the Nuffield Professor of Economics at the University of Oxford.[1] [2] He is considered one of the world's leading experts in the fields of Choice Modelling, structural modelling, simulation estimation, and panel data econometrics.[3] [4] [5] [6] [7]

He is also one of the world's leading economists by many measures of research productivity.[8] [9] Keane works in numerous areas including labor economics, econometrics, consumer demand models, marketing, industrial organization, health economics, and trade.

He is currently a chief investigator of the Australian Research Council Centre of Excellence in Population Ageing Research (Cepar).[10] From 2006–10 he was Co-Director of the Centre for the Study of Choice (CenSoC) at UTS.[11] Keane became a dual citizen of Australia in 2010.

Education and career

Keane was born in Suffern, New York, United States in 1961. He and graduated from Xavier High School in Manhattan in 1979. Keane received a B.S. degree from the Massachusetts Institute of Technology in 1983, where he was known as "Peachy" and played the bass guitar. He received a Ph.D. from Brown University in 1990.

In 1993, he became a tenured associate professor at the University of Minnesota, and was promoted to full professor in 1996. He subsequently held full professor positions at New York University (1998–2001) and Yale University (2000-2006).

In 2006, he moved to Australia to take up an Australian Federation Fellowship at the University of Technology Sydney.[12] In 2011, he became an Australian Laureate Fellow at the University of New South Wales.[13]

Keane was elected a Fellow of the Econometric Society (2005),[14] to the Council of the Econometric Society (2009), and a Fellow of the Academy of Social Sciences in Australia (2012).[15] He was the recipient of the John D.C. Little award for the Best Paper in Marketing (1996) and the Kenneth J. Arrow Award for Best Paper in Health Economics (2008).[16] In 2004–05, Keane was the Goldwater Chair of American Institutions at Arizona State University and, subsequently, has been a regular visiting professor there.

Contributions

Keane's work is notable for the fact that it spans a very wide range of substantive and methodological areas. He is best known for work on the following topics:

Discrete choice models

Keane's work on recursive importance sampling (the "GHK" algorithm), contained in his thesis (1990) and published in 1993–1994, made it feasible to estimate a much larger class of discrete choice models than was previously possible. In particular, his thesis developed a fast algorithm for the highly accurate calculation of areas of polyhedrons in very-high-dimensional spaces. While primarily a result in applied mathematics, this result is very useful in economics (and other social sciences) because the choice probabilities in discrete choice models generally have this form.[17] The GHK algorithm is now included in many popular econometrics software packages, including SAS, Stata, GAUSSX, Matlab and R-Cran-Bayesm,[18] and is a standard topic in graduate econometrics texts.[19]

Consumer demand and marketing

A 1996 paper with Tulin Erdem in Marketing Science presented what is now the main economic model of advertising and consumer learning. This paper received the John D.C. Little Award for the Best Paper in Marketing in 1996, and it has had a major impact on the fields of marketing and industrial organization. There is now a large literature on consumer learning based on the Erdem-Keane framework.[20] Erdem and Keane (among others) have argued that their framework can provide an economic explanation for the phenomenon known as brand equity, based on incomplete information and risk aversion.[21] [22] The November 2013 issue of Marketing Science contains an extensive review of the large literature based on the Erdem-Keane framework.[23]

Dynamic life-cycle models

In a series of joint papers with Kenneth Wolpin, published between 1994 and 2010, Keane developed a major line of research on dynamic life-cycle models of career (i.e., school and work) choices.[24] [25] This line of research is notable both for the methodological contributions on how to estimate these types of models, and for its substantive economic contributions. Methodologically, their method of approximating the solution to computationally intensive dynamic programming problems led to a great expansion in the class of such models that are feasible to implement empirically (i.e., their method made it possible to estimate models with many more choices and state variables than was possible previously). Substantively, their seminal 1997 paper on "The Career Decisions on Young Men" presented the so-called "90 percent result"—i.e., that most of what matters for lifetime earnings has already happened by age 16. This result helped to shift the focus of the human capital literature away from college education and towards early childhood education. This is now a very active area of research in economics, which has been pursued by both Keane and Wolpin and, quite notably, by the Nobel Prize–winning economist James Heckman,[26] among others.

Welfare and transfer programs

His 1998 paper with Robert Moffitt, entitled "Multiple welfare program participation and labor supply," has had great influence on subsequent models of transfer/welfare programs. This was the first paper to account for the very complex budget constraints created when people may participate in several government welfare programs simultaneously. The model predicted that welfare caseloads would drop substantially in response to earnings subsidies (like the Earned Income Tax Credit).

Human capital and labor supply

In recent years, Keane has argued persuasively that, due to human capital effects, labor supply elasticities are much larger than the previous consensus of the economics profession would suggest. These views are presented in Imai and Keane (2004), Keane (2010) and Keane and Rogerson (2012).[27] [28] If correct, his views imply that welfare losses from income taxation are much higher than was previously thought. Recently, Keane gave a keynote lecture summarizing this work at the 2015 annual meeting of the Royal Economic Society.[29] His Cowles lecture at the 2011 summer meeting of the Econometric Society also dealt with this topic.

Modelling expectations

Keane's papers with David Runkle (1990, 1998) are considered fundamental contributions in the literature on how people form expectations. These papers showed that the widespread empirical failure of "rational expectations" was in fact due to a set of econometric and data problems (such as the failure to account for aggregate economic shocks and the effects of data revisions).

Panel data econometrics

The recursive importance sampling algorithm developed in Keane's 1994 Econometrica paper made it possible to estimate panel data discrete choice models with complex serial correlation patterns. This approach is now widely used to model discrete dynamic processes in marketing and labor economics.Keane's 1992 Journal of Business and Economic Statistics paper with David Runkle developed a new approach for estimating linear panel data models in cases where the available instruments are predetermined but not strictly exogenous. This is a very common case that includes all dynamic panel data models as a leading example. Chamberlain (1982) noted that the Keane-Runkle approach was not fully efficient because it fails to use all available instruments. Keane and Runkle (1992) responded that the use of additional instruments would be unwise as it would generate bias due to the "many instrument problem." Nevertheless, the development of more efficient panel data estimators based on more instruments became a major research program in the 90s. Examples of this line of research are well-known papers by Arellano-Bond (1991), Ahn-Schmidt (1995), Arellano-Bover (1995) and Blundell-Bond (1998). For a review of the literature see Baltagi (2005) chapter 8.[30] More recent work, such as Ziliak (1997),[31] supports Keane and Runkle (1992)'s original argument that use of additional instruments may cause severe bias.[32]

Econometric methodology

Keane is well known as a champion of the "structural econometrics" school, which emphasizes the important role of economic theory in empirical work. This contrasts with the "experimental school" which has become very popular in the last 20 years. The latter seeks to use "natural experiments" to substitute for economic theory. He has written a number of articles on the importance of theory and the limitations of experiments (see Keane 2010a, 2010b).[33]

Other areas

In addition, Keane has done significant work in many other areas, such as health economics, child development, international trade, political economy, experimental economics, and development economics.

Selected papers

External links

Notes and References

  1. Web site: Academic Experience. ifs.org.uk. 27 September 2018.
  2. Web site: Michael Keane arrives. 25 August 2017. business.unsw.edu.au. 27 September 2018.
  3. Web site: According to the Academy of the Social Sciences in Australia, " He is considered one of the world's leading experts in the fields of Choice Modelling, structural modelling, simulation estimation, and panel data econometrics.". Professor Michael Keane. assa.edu.au. 10 September 2017. 10 September 2017. https://web.archive.org/web/20170910174106/http://old.assa.edu.au/fellowship/fellow/100046. dead.
  4. Web site: According to the University of Oxford Nuffield Professorship announcement, "He is a world leader in choice modelling, the statistical technique that involves developing mathematical models to predict how individuals or companies make different types of decisions.". Nuffield Professorship of Economics . ox.ac.uk/ . 10 September 2017.
  5. Web site: According his profile at the Becker-Friedman Institute at the University of Chicago, "Michael Keane is a distinguished behavioral economist and econometrician and a world leader in choice modeling.". Michael Keane. Bfi.uchicago.edu. 21 February 2015.
  6. Web site: According to the UNSW Business School appointment announcement, "He is widely known for his seminal contributions in empirical microeconomics and econometrics. His methodological innovations are used extensively in a variety of applied fields including labour economics, health economics and marketing.". Prestigious joint appointment for Michael Keane . business.unsw.edu.au . 10 September 2017.
  7. Web site: According to the Institute for Fiscal Studies profile, “Keane is best known for work on simulation methods (e.g., the “GHK algorithm”) and for contributions to the theory and application of dynamic discrete choice models.". https://www.ifs.org.uk/people/profile/2625?year_published[start=&year_published[end]=&page=1& Michael P Keane ]. ifs.org.uk . 10 September 2017.
  8. Web site: As of September 2017 Keane has over 16,000 citations on Google scholar. 10 September 2017.
  9. And, according to the IDEAS/RePEc October 2013 rankings of economists by several measures of research productivity, he ranks 110th among all economists in the world, 5th in the United Kingdom, 37th in the world over the past 10 years, and 1st among all economists in the 1990 PhD cohort. In terms of total journal pages, weighted by journal impact factors and number of co-authors, he is 23rd in the world and 5th in the world over the last 10 years.
  10. Web site: Cepar Homepage . Cepar.edu.au . 2014-01-15.
  11. Web site: UTS: About – Study of Choice . Censoc.uts.edu.au . 2012-10-15 . 2014-01-15 . https://web.archive.org/web/20140126220939/http://www.censoc.uts.edu.au/about/index.html . 2014-01-26 . dead .
  12. Web site: UTS tops economics rankings in Australia . Theaustralian.com.au . 2013-08-29 . 2014-01-15.
  13. Web site: Australian Laureate Fellows at UNSW . Research.unsw.edu.au . 2013-06-19 . 2014-01-15 . https://web.archive.org/web/20140116123524/http://research.unsw.edu.au/unsws-prestigious-arc-and-nhmrc-fellows . 2014-01-16 . dead .
  14. Web site: Welcome to the website of The Econometric Society An International Society for the Advancement of Economic Theory in its Relation to Statistics and Mathematics . Econometricsociety.org . 2003-01-03 . 2014-01-15 . dead . https://web.archive.org/web/20081210090215/http://www.econometricsociety.org/fellows.asp . 2008-12-10 .
  15. Web site: Academy Fellow – Professor Michael Keane FASSA . 2023-11-25 . Academy of the Social Sciences in Australia . en-AU.
  16. Web site: Arrow Award Winners | iHEA | International Health Economics Association . Archive.healtheconomics.org . 2007-07-10 . 2014-01-15 . dead . https://web.archive.org/web/20140102192145/http://archive.healtheconomics.org/arrow-award/winners.html . 2014-01-02 .
  17. See Skrondal, Anders and Sophia Rabe-Hesketh (2004), "Generalized Latent Variable Modeling," London: Chapman & Hall/CRC, pp. 173–4, where they state "In econometrics the GHK simulator is very popular for models with multi-normal latent responses, for instance probit panel (longitudinal) models (e.g., Keane, 1994, Geweke, et al., 1994). This is probably because the simulator has been shown to outperform other simulators although it is relatively easy to implement."
  18. Web site: Cappellari L. and Jenkins, S.P. (2003), "Multivariate probit regression using simulated maximum likelihood," The Stata Journal, Vol. 3:3, pp. 278–94 . Stata-journal.com . 2014-01-15.
  19. Web site: Basic textbook discussion of the algorithm. Greene, William H.. 2003. Econometric Analysis. Fifth. 931–33. 21 February 2015.
  20. Book: Branding and Brand Equity : SAGE Knowledge . Knowledge.sagepub.com . 2009-06-22 . 10.4135/9781848608283 . 9781412921206 . 2015-02-21. Weitz . Barton . Wensley . Robin .
  21. Web site: Google Scholar Citations . 1998-12-31 . 2015-02-21.
  22. 383434. Brand Credibility, Brand Consideration, and Choice. Tülin Erdem. Joffre Swait. Journal of Consumer Research. 31. 1. June 2004. 191–198. The University of Chicago Press. 10.1086/383434. free.
  23. Ching . A. T. . Erdem . T. L. . Keane . M. P. . 10.1287/mksc.2013.0805 . Invited Paper—Learning Models: An Assessment of Progress, Challenges, and New Developments . Marketing Science . 32 . 6 . 913–938 . 2013 .
  24. Web site: Heckman, J.. Lochner, L.. Todd, P.. 2006. Handbook of the Economics of Education. 1. 441. Keane and Wolpin (1997) and Eckstein and Wolpin (1999) pioneered the estimation of dynamic discrete choice models for analyzing schooling choices.. 21 February 2015.
  25. Scienedirect.com. In his survey of the human capital literature, Belzil (2007) states that "The first stage consists of seminal work on schooling and earnings by Becker (1964, 1967) and Mincer (1958). The second stage, which culminates in Willis and Rosen (1979), is largely influenced by the econometric self-selection literature (Heckman, 1976). Finally, the recent literature, stimulated by Keane and Wolpin (1997), uses stochastic dynamic programming techniques, and forms a third stage ...". 10.1016/j.euroecorev.2007.01.008. 51. 5. 1059–1105. 2007. Belzil. Christian. The return to schooling in structural dynamic models: A survey. European Economic Review. 10552331.
  26. Web site: The Economics and Econometrics of Human Development by James Heckman . YouTube . 2013-11-07 . 2015-02-21.
  27. Nobel Lecture: The Transformation of Macroeconomic Policy and Research . 10.1086/503205 . 10.1086/503205 . 2006 . Prescott . Edward C. . Journal of Political Economy . 114 . 2 . 203–235 .
  28. http://www.becker-posner-blog.com/2012/07/is-raising-marginal-tax-rates-on-higher-income-individuals-a-good-idea-becker.html Becker-Posner Blog "Is Raising Marginal Tax Rates on Higher Income Individuals a Good Idea?" July 15, 2012
  29. Web site: First Sight Media: Presentation.
  30. Web site: Baltagi, Badi. 2005. The Econometric Analysis of Panel Data. 3rd. Chichester. John Wiley & Sons. 21 February 2015.
  31. Ziliak, James P . Efficient Estimation with Panel Data When Instruments Are Predetermined: An Empirical Comparison of Moment-Condition Estimators . Journal of Business & Economic Statistics . Ideas.repec.org . 1997-02-02 . 15 . 4 . 419–431 . 10.1080/07350015.1997.10524720 . 2014-01-15.
  32. See the well-known reference on panel data by Baltagi (2005), pp. 151–52, where he states: "Ziliak (1997) performs an extensive set of Monte Carlo experiments for a dynamic panel data model ... Ziliak finds that the downward bias of GMM is quite severe as the number of moment conditions expands, outweighing the gains in efficiency. Interestingly, Ziliak finds that the forward filter 2SLS estimator proposed by Keane and Runkle (1992) performs best in terms of the bias/efficiency tradeoff and is recommended."
  33. See also the discussion by Mark . Rosenzweig . Kenneth . Wolpin . 2000 . Natural 'Natural Experiments' in Economics . . 38 . 4 . 827–74 . 2698663 . 10.1257/jel.38.4.827.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Michael Keane (economist)".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.