2013 | 14 | 1 | 265-275
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The aim of presented research is to identify factors that determine wages in Poland and to find out if gender pay gap exists, applying classification trees. For the grouping variable i.e. net income from the main place of employment we construct clusters of respondents that are created due to such features as: gender, education, employment contract, economic, occupation, additional job, size of enterprise, measured by the number of employees, age and job seniority in years. Investigation is provided applying data from the Polish Labor Force Survey in the years 2003, 2006 and 2009.
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  • Department of Econometrics and Statistics Warsaw University of Life Sciences – SGGW
  • Department of Econometrics and Statistics Warsaw University of Life Sciences – SGGW
  • Adamchik V.A., Bedi A.S. (2003) Gender Pay Differentials during the Transition in Poland, Economics of Transition, Vol. 11(4) pp. 697 – 726.
  • Arrow K. J. (1973) The Theory of Discrimination in: Ashenfelter O. and Rees A. (ed.) Discrimination in Labor Markets, Princeton, Princeton University Press.
  • Bergmann B. (1971) The Effect of White Incomes of Discrimination in Employment, Journal of Political Economy Vol. 79, p. 294 – 313.
  • Breiman, L., Friedman, J., Olshen R. and Stone C. (1984) Classification and Regression Trees. Wadsworth International Group, Belmont, CA.
  • Cain G. G. (1986) The Economic Analysis of labor Market Discrimination: A Survey, in: Ashenfeler O., Layard R., (ed.) Handbook of Labour Economics, Vol. I, Elsevier Science Publishers BV, pp. 693 – 785.
  • Doyle P. (1973) The use of Automatic Interaction Detector and Similar Search Procedures. Operational Research Quarterly, Vol. 24, pp.465-467.
  • Gatnar E., Walesiak M. (2004) Metody statystycznej analizy wielowymiarowej w badaniach marketingowych, Wydawnictwo AE im. O. Langego we Wrocławiu, Wrocław.
  • Grajek M. (2001) Gender Pay Gap in Poland, Discussion Paper FS IV 01 – 13, Wissen-schaftszentrum Berlin.
  • Keane M. P. and Prasad E. (2006) Changes in the Structure of Earnings During the Polish Transition, Journal of Development Economics Vol. 80, pp. 389 – 427.
  • Kot S. M. (ed.) (1999) Analiza ekonometryczna kształtowania się płac w Polsce w okresie transformacji, Warszawa, Kraków, PWN.
  • Lim T., Loh W., Shih Y. (2000) A Comparison of Prediction Accuracy, Complexity, and Training Time of Thirty-three Old and New Classification Algorithms, Machine Learning, Vol. 40, pp. 203 – 229.
  • Loh W., Shih Y. (1997) Split Selection Methods for Classification Trees, Statistica Sinica, Vol. 7, pp. 815 – 840.
  • Livanos I., Pouliakas K. (2009) The Gender Wage Gap as a Function of Educational Degree Choices in an Occupationally Segregated EU Country, IZA Discussion Paper Series, Discussion Paper No. 4636, Bonn, Germany: Institute for the Study of Labor (IZA)December 2009.
  • Madden, J. F. (1975) Discrimination - A Manifestation of Male Market Power? In: Lloyd, C. B. (ed.) Sex, Discrimination, and the Division of Labor, New York: Columbia University Press.
  • Matuszewska–Janica A., Witkowska D. (2013) Zróżnicowanie płac ze względu na płeć: zastosowanie drzew klasyfikacyjnych, Taksonomia 21, Klasyfikacja i analiza danych. teoria i zastosowania, Prace naukowe Uniwersytetu Ekonomicznego we Wrocławiu,
  • nr 279, Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu, Wrocław,
  • pp. 58 – 66.
  • McConnell C. R., Brue S. L. (1986) Contemporary Labor Economics, New York, McGraw Hill Book Co.
  • Milanovic, B. (1999) Explaining the increase in inequality during transition, Economics of Transition, 7 (2) 299-341.
  • Newell, A., Reilly B. (2001) The gender wage gap in the transition from communism: some empirical evidence, Economic Systems, 25, pp. 287-304.
  • Newell A., Socha M.W. (2005) The Distribution of Wages in Poland, 1992-2002,
  • IZA Discussion Paper 1485.
  • Newell A., Socha M.W. (2007) The Polish Wage Inequality Explosion, IZA Discussion Paper No. 2644.
  • Neuman S., Oaxaca R. L. (2003) Estimating Labor Market Discrimination with Selectivity-Corrected Wage Equations: Methodological Considerations and An Illustration from Israel, The Pinhas Sapir Center for Development Tel-Aviv University, Discussion Paper No. 2-2003.
  • Thurow L. C. (1975) Generating Inequality, New York, Basic Books Inc. Publ.
  • Witkowska D. (2012) Wage Disparities in Poland: Econometric Models of Wages, Metody Ilościowe w Badaniach Ekonomicznych, Vol. XIII No. 2, SGGW Warszawa,
  • pp. 115 – 124.
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