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Count Your Hours: Returns to Education in Poland

  • Myck, Michal


    (Centre for Economic Analysis, CenEA)

  • Nicinska, Anna


    (Warsaw University)

  • Morawski, Leszek


    (Warsaw University)

We show how significant may be the difference in the estimated returns to education in Poland conditional on the measure of wages used and the estimation approach applied. Combining information from two different Polish surveys from 2005 and taking advantage of the Polish microsimulation model (SIMPL) we demonstrate how different the results can be depending on whether we use net or gross, and monthly or hourly wages, and show how important selection correction is for the conclusion. While there are several papers examining the wage equation in Poland, so far none of them has provided a comprehensive analysis of the effects of using different methods and the issue of selection-correction in the estimation of the wage equation in Poland has not been examined in detail. Annual rates of return to university education for men vary from 6.7% to 9.7% and for women from 8.0% to 13.4% when we compare results using net monthly wages without correcting for labor market selection to those from a selection corrected specification using gross hourly wages. We also demonstrate that simple linear estimation performs relatively well for men in comparison to our preferred selection corrected estimation, while using family demographics as exclusion restrictions seems to be the "second best" in the case of the wage equation estimation for women.

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Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 4332.

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Length: 33 pages
Date of creation: Jul 2009
Date of revision:
Handle: RePEc:iza:izadps:dp4332
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  1. Puhani, Patrick A, 2000. " The Heckman Correction for Sample Selection and Its Critique," Journal of Economic Surveys, Wiley Blackwell, vol. 14(1), pages 53-68, February.
  2. Leung, Siu Fai & Yu, Shihti, 1996. "On the choice between sample selection and two-part models," Journal of Econometrics, Elsevier, vol. 72(1-2), pages 197-229.
  3. Alan Krueger & Orley Ashenfelter, 1992. "Estimates of the Economic Return to Schooling from a New Sample of Twins," NBER Working Papers 4143, National Bureau of Economic Research, Inc.
  4. Dustmann, Christian & Schmidt, Christoph M, 2001. "The Wage Performance of Immigrant Women: Full-Time Jobs, Part-Time Jobs and the Role of Selection," CEPR Discussion Papers 2702, C.E.P.R. Discussion Papers.
  5. Colm Harmon & Ian Walker, 1995. "Estimates of the economic return to schooling for the United Kingdom," Open Access publications 10197/647, School of Economics, University College Dublin.
  6. Mroz, Thomas A, 1987. "The Sensitivity of an Empirical Model of Married Women's Hours of Work to Economic and Statistical Assumptions," Econometrica, Econometric Society, vol. 55(4), pages 765-99, July.
  7. Bernhard Boockmann & Viktor Steiner, 2006. "Cohort effects and the returns to education in West Germany," Applied Economics, Taylor & Francis Journals, vol. 38(10), pages 1135-1152.
  8. Francis Vella, 1998. "Estimating Models with Sample Selection Bias: A Survey," Journal of Human Resources, University of Wisconsin Press, vol. 33(1), pages 127-169.
  9. Leszek Morawski & Michal Myck, 2008. "'Klin'-ing up: effects of Polish tax reforms on those in and on those out," IFS Working Papers W08/12, Institute for Fiscal Studies.
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  13. Hilary Hoynes, 1993. "Welfare Transfers in Two-Parent Families: Labor Supply and Welfare Participation Under AFDC-UP," NBER Working Papers 4407, National Bureau of Economic Research, Inc.
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  21. Callan, T. & Harmon, C.P., 1997. "The Economic Return to Schooling in Ireland," Papers 97/23, College Dublin, Department of Political Economy-.
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  24. Brunello, Giorgio & Miniaci, Raffaele, 1999. "The economic returns to schooling for Italian men. An evaluation based on instrumental variables1," Labour Economics, Elsevier, vol. 6(4), pages 509-519, November.
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