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The Politicians' Wage Gap: Insights from German Members of Parliament

  • Peichl, Andreas


    (ZEW Mannheim)

  • Pestel, Nico



  • Siegloch, Sebastian


    (University of Mannheim)

Using a unique dataset of German members of parliament with information on total earnings including outside income, this paper analyzes the politicians’ wage gap (PWG). After controlling for observable characteristics as well as accounting for selection into politics, we find a positive PWG which is statistically and economically significant. It amounts to 40-60% compared to citizens with an executive position. Hence, we show that the widely held claim that politicians would earn more in the private sector is not confirmed by our data. Our findings are robust with respect to potential unobserved confounders. We further show that the PWG exceeds campaigning costs and cannot be justified by extraordinary workload. Hence, our results suggest that part of the PWG can be interpreted as rent extraction. This calls for a reform of the regulation of outside earnings, which account for a sizeable share of the wage premium.

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Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 5520.

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Length: 35 pages
Date of creation: Feb 2011
Date of revision:
Handle: RePEc:iza:izadps:dp5520
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  1. Stefano Gagliarducci & Tommaso Nannicini, 2008. "Do Better Paid Politicians Perform Better? Disentangling Incentives from Selection," Working Papers 346, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
  2. Oaxaca, Ronald, 1973. "Male-Female Wage Differentials in Urban Labor Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 14(3), pages 693-709, October.
  3. Becker, Johannes & Peichl, Andreas & Rincke, Johannes, 2007. "Politicians' outside earnings and electoral competition," FiFo Discussion Papers - Finanzwissenschaftliche Diskussionsbeiträge 08-3, University of Cologne, FiFo Institute for Public Economics.
  4. Hans Gersbach, 2009. "Competition of politicians for wages and office," Social Choice and Welfare, Springer, vol. 33(1), pages 51-71, June.
  5. Guido Imbens & Jeffrey Wooldridge, 2008. "Recent developments in the econometrics of program evaluation," CeMMAP working papers CWP24/08, Centre for Microdata Methods and Practice, Institute for Fiscal Studies.
  6. Ronald G. Ehrenberg & Joshua L. Schwarz, 1983. "Public Sector Labor Markets," NBER Working Papers 1179, National Bureau of Economic Research, Inc.
  7. Joachim R. Frick & Jan Goebel & Markus M. Grabka & Olaf Groh-Sambeg & Gert G. Wagner, 2007. "Zur Erfassung von Einkommen und Vermögen in Haushaltssurveys: Hocheinkommensstichprobe und Vermögensbilanz im SOEP," SOEPpapers on Multidisciplinary Panel Data Research 19, DIW Berlin, The German Socio-Economic Panel (SOEP).
  8. repec:oup:qjecon:v:123:y:2008:i:2:p:703-745 is not listed on IDEAS
  9. Matthias Messner & Mattias Polborn, 2003. "Paying Politicians," Working Papers 246, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
  10. Francesco Caselli & Massimo Morelli, 2000. "Bad politicians," Discussion Paper / Institute for Empirical Macroeconomics 134, Federal Reserve Bank of Minneapolis.
  11. Thomas Braendle & Alois Stutzer, 2010. "Public servants in parliament: theory and evidence on its determinants in Germany," Public Choice, Springer, vol. 145(1), pages 223-252, October.
  12. Guido W. Imbens, 2004. "Nonparametric Estimation of Average Treatment Effects Under Exogeneity: A Review," The Review of Economics and Statistics, MIT Press, vol. 86(1), pages 4-29, February.
  13. Daniel Diermeier & Michael Keane & Antonio Merlo, 2002. "A Political Economy Model of Congressional Careers," PIER Working Paper Archive 04-037, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania, revised 01 Sep 2004.
  14. Mattozzi, Andrea & Merlo, Antonio, 2007. "Political Careers or Career Politicians?," CEPR Discussion Papers 6164, C.E.P.R. Discussion Papers.
  15. Bender, Keith A, 1998. " The Central Government-Private Sector Wage Differential," Journal of Economic Surveys, Wiley Blackwell, vol. 12(2), pages 177-220, April.
  16. Simeon Djankov & Rafael La Porta & Florencio Lopez-de-Silanes & Andrei Shleifer, 2009. "Disclosure by Politicians," NBER Working Papers 14703, National Bureau of Economic Research, Inc.
  17. Borghans, Lex & Duckworth, Angela Lee & Heckman, James J. & Weel, Bas ter, 2008. "The Economics and Psychology of Personality Traits," MERIT Working Papers 010, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT).
  18. Marco Caliendo & Sabine Kopeinig, 2008. "Some Practical Guidance For The Implementation Of Propensity Score Matching," Journal of Economic Surveys, Wiley Blackwell, vol. 22(1), pages 31-72, 02.
  19. Panu Poutvaara & Tuomas Takalo, 2007. "Candidate quality," International Tax and Public Finance, Springer, vol. 14(1), pages 7-27, February.
  20. Gagliarducci, Stefano & Nannicini, Tommaso & Naticchioni, Paolo, 2010. "Moonlighting politicians," Journal of Public Economics, Elsevier, vol. 94(9-10), pages 688-699, October.
  21. Pederson, P. J. & Schmidt-Sorensen, J. B. & Smith, N. & Westergard-Nielsen, N., 1990. "Wage differentials between the public and private sectors," Journal of Public Economics, Elsevier, vol. 41(1), pages 125-145, February.
  22. repec:oup:qjecon:v:110:y:1995:i:3:p:769-98 is not listed on IDEAS
  23. Arulampalam, Wiji & Booth, Alison L. & Bryan, Mark L., 2005. "Is there a glass ceiling over Europe? Exploring the gender pay gap across the wages distribution," ISER Working Paper Series 2005-25, Institute for Social and Economic Research.
  24. John Cadigan, 2005. "The Citizen Candidate Model: An Experimental Analysis," Public Choice, Springer, vol. 123(1), pages 197-216, April.
  25. Eggers, Andy & Hainmueller, Jens, 2008. "MPs for Sale? Estimating Returns to Office in Post-War British Politics," MPRA Paper 7892, University Library of Munich, Germany.
  26. Atkinson, A. B. & Piketty, Thomas (ed.), 2007. "Top Incomes Over the Twentieth Century: A Contrast Between Continental European and English-Speaking Countries," OUP Catalogue, Oxford University Press, number 9780199286881, July.
  27. Cobb-Clark, Deborah & Schurer, Stefanie, 2011. "The stability of big-five personality traits," Working Paper Series 1834, Victoria University of Wellington, School of Economics and Finance.
  28. Timothy Besley, 2004. "Joseph Schumpeter Lecture: Paying Politicians: Theory and Evidence," Journal of the European Economic Association, MIT Press, vol. 2(2-3), pages 193-215, 04/05.
  29. Freeman, Richard B, 1986. "Unionism Comes to the Public Sector," Journal of Economic Literature, American Economic Association, vol. 24(1), pages 41-86, March.
  30. Hartog, Joop & Oosterbeek, Hessel, 1993. "Public and private sector wages in the Netherlands," European Economic Review, Elsevier, vol. 37(1), pages 97-114, January.
  31. Kotakorpi, Kaisa & Poutvaara, Panu, 2011. "Pay for politicians and candidate selection: An empirical analysis," Journal of Public Economics, Elsevier, vol. 95(7), pages 877-885.
  32. Ferraz, Claudio & Finan, Frederico S., 2008. "Motivating Politicians: The Impacts of Monetary Incentives on Quality and Performance," IZA Discussion Papers 3411, Institute for the Study of Labor (IZA).
  33. Gert G. Wagner & Joachim R. Frick & Jürgen Schupp, 2007. "The German Socio-Economic Panel Study (SOEP) – Scope, Evolution and Enhancements," Schmollers Jahrbuch : Journal of Applied Social Science Studies / Zeitschrift für Wirtschafts- und Sozialwissenschaften, Duncker & Humblot, Berlin, vol. 127(1), pages 139-169.
  34. Roine, Jesper & Vlachos, Jonas & Waldenström, Daniel, 2009. "The long-run determinants of inequality: What can we learn from top income data?," Journal of Public Economics, Elsevier, vol. 93(7-8), pages 974-988, August.
  35. Gorodnichenko, Yuriy & Sabirianova Peter, Klara, 2006. "Public Sector Pay and Corruption: Measuring Bribery from Micro Data," CEPR Discussion Papers 5585, C.E.P.R. Discussion Papers.
  36. Kunze, Astrid, 2005. "The evolution of the gender wage gap," Labour Economics, Elsevier, vol. 12(1), pages 73-97, February.
  37. repec:oup:qjecon:v:112:y:1997:i:1:p:85-114 is not listed on IDEAS
  38. Blaise Melly, 2005. "Public-private sector wage differentials in Germany: Evidence from quantile regression," Empirical Economics, Springer, vol. 30(2), pages 505-520, 09.
  39. Couch, Jim F & Atkinson, Keith E & Shughart, William F, II, 1992. " Ethics Laws and the Outside Earnings of Politicians: The Case of Alabama's "Legislator-Educators."," Public Choice, Springer, vol. 73(2), pages 135-45, March.
  40. Edwin Leuven & Barbara Sianesi, 2003. "PSMATCH2: Stata module to perform full Mahalanobis and propensity score matching, common support graphing, and covariate imbalance testing," Statistical Software Components S432001, Boston College Department of Economics, revised 19 Jan 2015.
  41. Rebecca M. Blank, 1993. "Public Sector Growth and Labor Market Flexibility: The United States vs. The United Kingdom," NBER Working Papers 4339, National Bureau of Economic Research, Inc.
  42. Alberto Abadie & Guido W. Imbens, 2006. "Large Sample Properties of Matching Estimators for Average Treatment Effects," Econometrica, Econometric Society, vol. 74(1), pages 235-267, 01.
  43. Jacob A. Mincer, 1974. "Schooling, Experience, and Earnings," NBER Books, National Bureau of Economic Research, Inc, number minc74-1, December.
  44. Thomas Evans, 2007. "An empirical test of why incumbents adopt campaign spending limits," Public Choice, Springer, vol. 132(3), pages 437-456, September.
  45. Jacob A. Mincer, 1974. "Introduction to "Schooling, Experience, and Earnings"," NBER Chapters, in: Schooling, Experience, and Earnings, pages 1-4 National Bureau of Economic Research, Inc.
  46. Nyhus, Ellen K. & Pons, Empar, 2005. "The effects of personality on earnings," Journal of Economic Psychology, Elsevier, vol. 26(3), pages 363-384, June.
  47. Gregory, Robert G. & Borland, Jeff, 1999. "Recent developments in public sector labor markets," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 53, pages 3573-3630 Elsevier.
  48. Gary S. Becker & George J. Stigler, 1974. "Law Enforcement, Malfeasance, and Compensation of Enforcers," The Journal of Legal Studies, University of Chicago Press, vol. 3(1), pages 1-18, January.
  49. repec:oup:qjecon:v:111:y:1996:i:1:p:65-96 is not listed on IDEAS
  50. Maria De Paola & Vincenzo Scoppa, 2010. "Political Competition And Politician Quality: Evidence From Italian Municipalities," Working Papers 201005, Università della Calabria, Dipartimento di Economia, Statistica e Finanza (Ex Dipartimento di Economia e Statistica).
  51. Stefan Bach & Giacomo Corneo & Viktor Steiner, 2009. "From Bottom To Top: The Entire Income Distribution In Germany, 1992-2003," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 55(2), pages 303-330, 06.
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