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Who partners up? Educational assortative matching and the distribution of income in New Zealand

Author

Listed:
  • Omoniyi Alimi

    (Waikato University)

  • David C Maré

    (Motu Economic and Public Policy Research)

  • Jacques Poot

    (Vrije Universiteit and University of Waikato)

Abstract

Educational assortative matching among couples, i.e. the phenomenon whereby the high-educated have partners who are also high-educated, has gained attention in popular media and academic research as a driver of recent changes in the distribution of household income. We examine the effect of educational assortative matching on the distribution of household income in New Zealand - a country which has experienced rising inequality, increased educational attainment and a relatively low, and falling, wage premium for higher levels of education. Using data from the 1986, 1991, 1996, 2001, 2006 and 2013 Census of Population and Dwellings and a counterfactual randomisation methodology that accounts for secular changes in the educational distribution, we find that educational assortative matching has increased but, contrary to some evidence overseas, this increase was driven by increased matching in the middle of the educational distribution. Spatially, we find higher and increasing levels of educational assortative matching in metropolitan areas compared to non-metropolitan areas where assortative matching was lower and decreasing. We find that educational assortative matching has had an inequality-increasing impact on the distribution of income, especially for the full-time employed – for whom the matching impact is around 20 percent of the Mean Log Deviation measure of inequality. Additionally, sorting on observable characteristics such as age and location (with the higher educated being disproportionally attracted to the metropolitan areas) are also inequality-increasing and sorting on unobservable characteristics that impact on income can play an important role as well.

Suggested Citation

  • Omoniyi Alimi & David C Maré & Jacques Poot, 2018. "Who partners up? Educational assortative matching and the distribution of income in New Zealand," Working Papers 18_13, Motu Economic and Public Policy Research.
    • Handle: RePEc:mtu:wpaper:18_13
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    References listed on IDEAS

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    1. Nico Pestel, 2017. "Marital Sorting, Inequality and the Role of Female Labour Supply: Evidence from East and West Germany," Economica, London School of Economics and Political Science, vol. 84(333), pages 104-127, January.
    2. Christine Schwartz & Robert Mare, 2005. "Trends in educational assortative marriage from 1940 to 2003," Demography, Springer;Population Association of America (PAA), vol. 42(4), pages 621-646, November.
    3. Pierre-André Chiappori & Bernard Salanié & Yoram Weiss, 2017. "Partner Choice, Investment in Children, and the Marital College Premium," American Economic Review, American Economic Association, vol. 107(8), pages 2109-2167, August.
    4. Lasse Eika & Magne Mogstad & Basit Zafar, 2019. "Educational Assortative Mating and Household Income Inequality," Journal of Political Economy, University of Chicago Press, vol. 127(6), pages 2795-2835.
    5. Rania Gihleb & Kevin Lang, 2020. "Educational Homogamy and Assortative Mating Have Not Increased," Research in Labor Economics, in: Change at Home, in the Labor Market, and On the Job, volume 48, pages 1-26, Emerald Group Publishing Limited.
    6. David H. Autor & Frank Levy & Richard J. Murnane, 2003. "The skill content of recent technological change: an empirical exploration," Proceedings, Federal Reserve Bank of San Francisco, issue Nov.
    7. Mookherjee, Dilip & Shorrocks, Anthony F, 1982. "A Decomposition Analysis of the Trend in UK Income Inequality," Economic Journal, Royal Economic Society, vol. 92(368), pages 886-902, December.
    8. Bourguignon, Francois, 1979. "Decomposable Income Inequality Measures," Econometrica, Econometric Society, vol. 47(4), pages 901-920, July.
    9. Michael Kremer, 1997. "How Much does Sorting Increase Inequality?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 112(1), pages 115-139.
    10. Blum, Bernardo S., 2008. "Trade, technology, and the rise of the service sector: The effects on US wage inequality," Journal of International Economics, Elsevier, vol. 74(2), pages 441-458, March.
    11. Christopher Ball & John Creedy, 2016. "Inequality in New Zealand 1983/84 to 2012/13," New Zealand Economic Papers, Taylor & Francis Journals, vol. 50(3), pages 323-342, September.
    12. Nicolas Frémeaux & Arnaud Lefranc, 2020. "Assortative Mating and Earnings Inequality in France," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 66(4), pages 757-783, December.
    13. Pencavel, John, 1998. "Assortative Mating by Schooling and the Work Behavior of Wives and Husbands," American Economic Review, American Economic Association, vol. 88(2), pages 326-329, May.
    14. Omoniyi B. Alimi & David C. Maré & Jacques Poot, 2018. "More Pensioners, Less Income Inequality? The Impact of Changing Age Composition on Inequality in Big Cities and Elsewhere," Advances in Spatial Science, in: Roger R. Stough & Karima Kourtit & Peter Nijkamp & Uwe Blien (ed.), Modelling Aging and Migration Effects on Spatial Labor Markets, chapter 0, pages 133-159, Springer.
    15. Shorrocks, A F, 1980. "The Class of Additively Decomposable Inequality Measures," Econometrica, Econometric Society, vol. 48(3), pages 613-625, April.
    16. Guy Michaels & Ashwini Natraj & John Van Reenen, 2010. "Has ICT Polarized Skill Demand? Evidence from Eleven Countries over 25 Years," CEP Discussion Papers dp0987, Centre for Economic Performance, LSE.
    17. Gary S. Becker, 1981. "A Treatise on the Family," NBER Books, National Bureau of Economic Research, Inc, number beck81-1, March.
    18. Becker, Gary S, 1973. "A Theory of Marriage: Part I," Journal of Political Economy, University of Chicago Press, vol. 81(4), pages 813-846, July-Aug..
    19. Burtless, Gary, 1999. "Effects of growing wage disparities and changing family composition on the U.S. income distribution," European Economic Review, Elsevier, vol. 43(4-6), pages 853-865, April.
    20. John Ermisch & Marco Francesconi & Thomas Siedler, 2006. "Intergenerational Mobility and Marital Sorting," Economic Journal, Royal Economic Society, vol. 116(513), pages 659-679, July.
    21. Guy Michaels & Ashwini Natraj & John Van Reenen, 2014. "Has ICT Polarized Skill Demand? Evidence from Eleven Countries over Twenty-Five Years," The Review of Economics and Statistics, MIT Press, vol. 96(1), pages 60-77, March.
    22. Maria Cancian & Deborah Reed, 1998. "Assessing The Effects Of Wives' Earnings On Family Income Inequality," The Review of Economics and Statistics, MIT Press, vol. 80(1), pages 73-79, February.
    23. Maria Cancian & Deborah Reed, 1999. "The impact of wives’ earnings on income inequality: Issues and estimates," Demography, Springer;Population Association of America (PAA), vol. 36(2), pages 173-184, May.
    24. James Zuccollo & Sholeh Maani & Bill Kaye-Blake & Lulu Zeng, 2013. "Private Returns to Tertiary Education - How Does New Zealand Compare to the OECD?," Treasury Working Paper Series 13/10, New Zealand Treasury.
    25. McKinley L. Blackburn & David E. Bloom, 1994. "Changes in the Structure of Family Income Inequality in the United States and Other Industrial Nationa During the 1980s," NBER Working Papers 4754, National Bureau of Economic Research, Inc.
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    More about this item

    Keywords

    Assortative matching; inequality;

    JEL classification:

    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • J12 - Labor and Demographic Economics - - Demographic Economics - - - Marriage; Marital Dissolution; Family Structure
    • R23 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Household Analysis - - - Regional Migration; Regional Labor Markets; Population

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