The New Palgrave Dictionary of Economics

2018 Edition
| Editors: Macmillan Publishers Ltd

IQ and National Productivity

  • Garett Jones
Reference work entry
DOI: https://doi.org/10.1057/978-1-349-95189-5_3004

Abstract

A recent line of research in economics and psychology hypothesizes that differences in national average intelligence, proxied by IQ tests, are important drivers of national economic outcomes. Cross-country regressions, while showing a robust IQ-growth relationship, cannot fully test this hypothesis. Thus, recent work explores the micro-foundations of the IQ-productivity relationship. The well-identified psychological relationship between IQ and patience implies higher savings rates and higher folk theorem-driven institutional quality in high average IQ countries. Experiments indicate that intelligence predicts greater pro-social behavior in public goods and prisoner’s dilemma games, supporting the hypothesis that high national average IQ causes higher institutional quality. High average IQ countries also have higher savings intensity by a variety of measures. Other possible IQ-productivity channels are discussed, as are possible environmental causes of differences in national average IQ.

Keywords

Cognitive ability Economic growth Education Human capital Time preference Institutions Cooperation prisoner’s dilemma IQ Intelligence Capital Strategic complementarities Intelligence quotient IQ tests GDP Average worker productivity Cognitive skill 
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Notes

Acknowledgments

I would like to thank Alex Tabarrok, Tyler Cowen and an anonymous reader for extremely helpful suggestions. Any remaining errors are my own.

Bibliography

  1. Alderman, H., J.R. Behrman, D.R. Ross, and R. Sabot. 1996. The returns to endogenous human capital in Pakistan’s rural wage labour market. Oxford Bulletin of Economics and Statistics 58(1): 29–55.CrossRefGoogle Scholar
  2. Armor, D.J. 2003. Maximizing intelligence. New Brunswick: Transaction Publishers.Google Scholar
  3. Banerjee, A., and E. Duflo. 2011. More than 1 billion people are hungry in the world. Foreign Policy, May–June.Google Scholar
  4. Barro, R.J., and D.B. Gordon. 1983. Rules, discretion and reputation in a model of monetary policy. Journal of Monetary Economics 12(1): 101–121.CrossRefGoogle Scholar
  5. Barro, R., and X. Sala-i-Martin. 2001. Economic growth. 2nd ed. Cambridge, MA: MIT Press.Google Scholar
  6. Beaujean, A., M.W. Firmin, A.J. Knoop, J.D. Michonski, T.P. Berry, and R.E. Lowrie. 2006. Validation of the Frey and Detterman (2004) IQ prediction equations using the Reynolds intellectual assessment scales. Personality and Individual Differences 41(2): 353–357.CrossRefGoogle Scholar
  7. Behrman, J., H. Alderman, and J. Hoddinott 2004. Copenhagen consensus – Challenges and opportunities: Hunger and malnutrition. CopenhagenConsensus.comGoogle Scholar
  8. Berg, J., J. Dickhaut, and K. McCabe. 1995. Trust, reciprocity, and social history. Games and Economic Behavior 10: 122–142.CrossRefGoogle Scholar
  9. Boomsma, D.I., T.C.E.M. van Beijsterveld, A.L. Beem, R.A. Hoekstra, T.J.C. Polderman, and M. Bartels. 2008. Intelligence and birth order in boys and girls. Intelligence 36(6): 630–634.CrossRefGoogle Scholar
  10. Bowles, S., H. Gintis, and M. Osborne. 2001. The determinants of earnings: skills, preferences, and schooling. Journal of Economic Literature 39: 1137–1176.CrossRefGoogle Scholar
  11. Burks, S., J. Carpenter, L. Goette, and A. Rustichini. 2009. Cognitive skills affect economic preferences, strategic behavior, and job attachment. Proceedings of the National Academy of Sciences 106: 7745–7750.CrossRefGoogle Scholar
  12. Caplan, B. 2011. Selfish reasons to have more kids: Why being a great parent is more fun and less work than you think. New York: Basic Books.Google Scholar
  13. Caplan, B., and S.C. Miller. 2010. Intelligence makes people think like economists: Evidence from the general social survey. Intelligence 38(6): 636–647.CrossRefGoogle Scholar
  14. Card, D., and J. Rothstein. 2007. Racial segregation and the black–white test score gap. Journal of Public Economics 91(11–12): 2158–2184.CrossRefGoogle Scholar
  15. Deary, I. 2001. Intelligence: A very short introduction. New York: Oxford University Press.CrossRefGoogle Scholar
  16. Devlin, B., R. Daniels, and K. Roeder. 1997. The heritability of IQ. Nature 388: 468–471.CrossRefGoogle Scholar
  17. Dohmen, T., A. Falk, D. Huffman, and U. Sunde. 2010. Are risk aversion and impatience related to cognitive ability? American Economic Review 100: 1238–1260.CrossRefGoogle Scholar
  18. Durbin, J. 1954. Errors in variables. Review of the International Statistical Institute 22(1/3): 23–32.CrossRefGoogle Scholar
  19. Eppig, C., C.L. Fincher, and R. Thornhill. 2010. Parasite prevalence and the worldwide distribution of cognitive ability. Proceedings of the Royal Society B 277(1701): 3801–3808.CrossRefGoogle Scholar
  20. Ferrie, J.P., K. Rolf, and W. Troesken 2011. Cognitive disparities, lead plumbing, and water chemisty: Intelligence test scores and exposure to water-borne lead among World War Two U.S. army enlistees. Working Paper, National Bureau of Economic Research.Google Scholar
  21. Fisman, R., and E. Miguel. 2007. Corruption, norms, and legal enforcement: evidence from diplomatic parking tickets. Journal of Political Economy 115(6): 1020–1048.CrossRefGoogle Scholar
  22. Flynn, J.R. 1987. Massive gains in 14 nations: What IQ tests really measure. Psychological Bulletin 95: 29–51.CrossRefGoogle Scholar
  23. Frey, M.C., and D.K. Detterman. 2004. Scholastic assessment or g? The relationship between the Scholastic assessment test and general cognitive ability. Psychological Science 15: 373–378.CrossRefGoogle Scholar
  24. Hansen, K.T., J.J. Heckman, and K.J. Mullen. 2004. The effect of schooling and ability on achievement test scores. Journal of Econometrics 121(1–2): 39–98.CrossRefGoogle Scholar
  25. Hanushek, E., and D. Kimko. 2000. Schooling, labor force quality, and the growth of nations. American Economic Review 90: 1184–1208.CrossRefGoogle Scholar
  26. Hanushek, E., and L. Woessmann 2007. The role of school improvement in economic development. NBER Working Paper 12832, January.Google Scholar
  27. Hanushek, E., and L. Woessmann 2010. The economics of international differences in educational achievement. NBER Working Paper No. 15949.Google Scholar
  28. Hendricks, L. 2002. How important is human capital for economic development? Evidence from immigrant earnings. American Economic Review 92(1): 198–219.CrossRefGoogle Scholar
  29. Hunt, E.B. 2010. Human intelligence. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
  30. Jensen, A.R. 1998. The g-factor: The science of mental ability. Westport: Praeger.Google Scholar
  31. Jones, C. 2000. Comment on Rodriguez and Rodrick, ‘Trade policy and economic growth: A skeptic’s guide to the cross-national evidence. Manuscript, University of California.Google Scholar
  32. Jones, G. 2008. Are smarter groups more cooperative? Evidence from prisoner’s dilemma experiments, 1959–2003. Journal of Economic Behavior and Organization 68(3–4): 489–497.CrossRefGoogle Scholar
  33. Jones, G. 2010. The O-ring sector and the foolproof sector: An explanation for skill externalities. Working Paper, George Mason University.Google Scholar
  34. Jones, G. 2011. National IQ and national productivity: The hive mind across Asia. Asian Development Review 28: 58–71.Google Scholar
  35. Jones, G., and J.V.C. Nye. 2011. Human capital in the creation of social capital: Evidence from diplomatic parking tickets. Working Paper, George Mason University.Google Scholar
  36. Jones, G., and M. Podemska. 2010. IQ in the utility function: Cognitive skills, time preference and cross-country differences in savings rates. Working Paper, George Mason University.Google Scholar
  37. Jones, G., and W.J. Schneider. 2006. Intelligence, human capital and economic growth: A Bayesian averaging of classical estimates (BACE) approach. Journal of Economic Growth 11: 71–93.CrossRefGoogle Scholar
  38. Jones, G., and W.J. Schneider. 2010. IQ in the production function: Evidence from immigrant earnings. Economic Inquiry 48: 743–755.CrossRefGoogle Scholar
  39. Kremer, M. 1993. The O-ring theory of economic development. Quarterly Journal of Economics 108: 551–575.CrossRefGoogle Scholar
  40. Lane, P.R., and G.M. Milesi-Ferretti. 2004. The transfer problem revisited: Net foreign assets and real exchange rates. Review of Economics and Statistics 86(4): 841–857.CrossRefGoogle Scholar
  41. Lane, P.R., and G.M. Milesi-Ferretti. 2007. The external wealth of nations mark II: Revised and extended estimates of foreign assets and liabilities, 1970–2004. Journal of International Economics 73(2): 223–250.CrossRefGoogle Scholar
  42. Loehlin, J.C. 2000. Groups differences in intelligence. In Handbook of intelligence, ed. R.J. Sternberg. Cambridge: Cambridge University Press.Google Scholar
  43. Lynn, R., and G. Meisenberg. 2010a. National IQs calculated and validated for 108 nations. Intelligence 38(4): 353–360.CrossRefGoogle Scholar
  44. Lynn, R., and G. Meisenberg. 2010b. The average IQ of sub-Saharan Africans: Comments on Wicherts, Dolan, and van der Maas. Intelligence 38(1): 21–29.CrossRefGoogle Scholar
  45. Lynn, R., and T. Vanhanen. 2002. IQ and the wealth of nations. Westport: Praeger.Google Scholar
  46. Lynn, R., and T. Vanhanen. 2006. IQ and global inequality. Augusta: Washington Summit Publishers.Google Scholar
  47. Mackintosh, N. 2011. IQ and human intelligence. Oxford: Oxford University Press.Google Scholar
  48. Maurer, J., and A. Meier. 2008. Smooth it like the ‘Joneses’? Estimating peer-group effects in intertemporal consumption choice. Economic Journal 118(527): 454–476.CrossRefGoogle Scholar
  49. Mischel, W., E.B. Ebbesen, and A.R. Zeiss. 1972. Cognitive and attentional mechanisms in delay of gratification. Journal of Personality and Social Psychology 21(2): 204–218.CrossRefGoogle Scholar
  50. Neal, D.A., and W.R. Johnson. 1996. The role of premarket factors in black–white wage differences. Journal of Political Economy 104(5): 869–895.CrossRefGoogle Scholar
  51. Neisser, U., eds. 1998. The rising curve: Long-term gains in IQ and related measures. Washington, DC: American Psychological Association.Google Scholar
  52. Neisser, U., G. Boodoo, T.J. Bouchard, A.W. Boykin, N. Brody, S.J. Ceci, D. Halpern, J.C. Loehlin, R. Perloff, R.J. Sternberg, and S. Urbina. 1996. Intelligence: Knowns and unknowns. American Psychologist 15: 77–101.CrossRefGoogle Scholar
  53. O’Rourke, K.H., and R. Sinnott. 2006. The determinants of individual attitudes towards immigration. European Journal of Political Economy 22(4): 838–861.CrossRefGoogle Scholar
  54. Peak, H., and E.G. Boring. 1926. The factor of speed in intelligence. Journal of Experimental Psychology 9(2): 71–94.CrossRefGoogle Scholar
  55. Persson, T., and G. Tabellini. 2000. Political economics: Explaining economic policy. Cambridge, MA: MIT Press.Google Scholar
  56. Pinker, S. 2011. The better angels of our nature: Why violence has declined. New York: Viking.Google Scholar
  57. Plomin, R., J. DeFries, G. McClearn, and P. McGuffin. 2000. Behavioral genetics. London: Worth Publishers.Google Scholar
  58. Potrafke, N. (forthcoming). Intelligence and corruption. Economics Letters.Google Scholar
  59. Putterman, L., J. Tyran, and K. Kamei. 2010. Public goods and voting on formal sanction schemes: An experiment. Working Paper, Brown University.Google Scholar
  60. Quah, D.T. 1996. Empirics for economic growth and convergence. European Economic Review 40(6): 1353–1375.CrossRefGoogle Scholar
  61. Ram, R. 2007. IQ and economic growth: Further augmentation of Mankiw–Romer–Weil model. Economics Letters 94(1): 7–11.CrossRefGoogle Scholar
  62. Rindermann, H. 2007a. The big G-factor of national cognitive ability. European Journal of Personality 21: 767–787.CrossRefGoogle Scholar
  63. Rindermann, H. 2007b. The g-factor of international cognitive ability comparisons: The homogeneity of results in PISA, TIMSS, PIRLS and IQ-tests across nations. European Journal of Personality 21: 667–706.CrossRefGoogle Scholar
  64. Rindermann, H., and J. Thompson. 2011. Cognitive capitalism: The effect of cognitive ability on wealth, as mediated through scientific achievement and economic freedom. Psychological Science 22: 754–763.CrossRefGoogle Scholar
  65. Sala-I-Martin, X., G. Doppelhofer, and R.I. Miller. 2004. Determinants of long-term growth: A Bayesian averaging of classical estimates (BACE) approach. American Economic Review 94(4): 813–835.CrossRefGoogle Scholar
  66. Shamosh, N., and R. Gray. 2008. Delay discounting and intelligence: A meta-analysis. Intelligence 36: 289–305.CrossRefGoogle Scholar
  67. Shoda, Y., W. Mischel, and P.K. Peake. 1990. Predicting adolescent cognitive and self-regulatory competencies from preschool delay of gratification: Identifying diagnostic conditions. Developmental Psychology 26(6): 978–986.CrossRefGoogle Scholar
  68. Solon, O., T.J. Riddell, S.A. Quimbo, E. Butrick, G.P. Aylward, M.L. Bacate, and J.W. Peabody. 2008. Associations between cognitive function, blood lead concentration, and nutrition among children in the Central Philippines. Journal of Pediatrics 152(2): 237–243.CrossRefGoogle Scholar
  69. Tupe, R., and S. Chiplonkar. 2009. Zinc supplementation improved cognitive performance and taste acuity in Indian adolescent girls. Journal of the American College of Nutrition 28(4): 388–396.CrossRefGoogle Scholar
  70. United Nations Environment Programme. 2002. Action plan for the phase out of leaded Gasoline in East Africa. http://www.unep.org/transport/pcfv/PDF/DataAPEAfrica.pdf
  71. United Nations Environment Programme. 2005. Sub-Saharan Africa celebrates leaded petrol phase-out. Available online.Google Scholar
  72. Volken, T. 2003. IQ and the wealth of nations. A critique of Richard Lynn and Tatu Vanhanen’s recent book. European Sociological Review 19(4): 411–412.CrossRefGoogle Scholar
  73. Warner, J.T., and S. Pleeter. 2001. The personal discount rate: Evidence from military downsizing programs. American Economic Review 91(1): 33–53.CrossRefGoogle Scholar
  74. Weede, E., and S. Kampf. 2002. The impact of intelligence and institutional improvements on economic growth. Kyklos 55: 361–380.CrossRefGoogle Scholar
  75. Wicherts, J.M., C.V. Dolan, J.S. Carlson, and H.L.J. van der Maas. 2009. Raven’s test performance of sub-Saharan Africans: Average performance, psychometric properties, and the Flynn effect. Learning and Individual Differences 20(3): 135–151.CrossRefGoogle Scholar
  76. Wicherts, J.M., C.V. Dolan, J.S. Carlson, and H.L.J. van der Maas. 2010a. A systematic literature review of the average IQ of sub-Saharan Africans. Intelligence 38(1): 1–20.CrossRefGoogle Scholar
  77. Wicherts, J.M., C.V. Dolan, J.S. Carlson, and H.L.J. van der Maas. 2010b. Another failure to replicate Lynn’s estimate of the average IQ of sub-Saharan Africans. Learning and Individual Differences 20(3): 155–157.CrossRefGoogle Scholar
  78. Wickett, J.C., P.A. Vernon, and D.H. Lee. 2000. Relationships between factors of intelligence and brain volume. Personality and Individual Differences 29: 1095–1122.CrossRefGoogle Scholar
  79. Winship, C., and S. Korenman. 1997. Does staying in school make you smarter? The effect of education on IQ in the bell curve. In Intelligence, genes and success: Scientists respond to the bell curve. New York: Springer-Verlag.Google Scholar
  80. Young, A. 2010. The African growth miracle. Unpublished manuscript, London School of Economics.Google Scholar
  81. Zax, J.S., and D.I. Rees. 2002. IQ, academic performance, environment, and earnings. Review of Economics and Statistics 84(4): 600–616.CrossRefGoogle Scholar

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© Macmillan Publishers Ltd. 2018

Authors and Affiliations

  • Garett Jones
    • 1
  1. 1.