Discrimination or Unobserved Differences in Characteristics?-An Empirical Study on Wage Inequality

Fang, Zheng and Sakellariou, Chris (2015): Discrimination or Unobserved Differences in Characteristics?-An Empirical Study on Wage Inequality.

Abstract

We apply the discrimination search model with wage-tenure contracts to NLSY79 data to study race/gender wage inequality with a focus on distinguishing unobserved productivity differences from discrimination in the labor market and also simulating the pattern of wage dynamics. Our findings suggest that the productivity differential between black and white workers is 3% of white worker productivity while productivity differences between men and women are estimated to be 3% of male productivity. 91 % of firms are prejudiced towards black workers and 93% towards female workers. The distaste they hold towards black workers is about 70% of white worker productivity and towards women, 95% of male productivity. Compared to estimates in Bowlus and Eckstein (2002) and Flabbi (2010), we derive similar results on productivity differences, but much higher estimates on discrimination. In addition, our model predicts similar patterns of wage increases as observed from the data: First, the wage increases faster for men than women; second, the wage increases faster at low wages than high wages.

• Item Type: MPRA Paper
• Language: English
• Keywords: Discrimination search model, unobserved difference, wage inequality
• Subjects: J - Labor and Demographic Economics > J3 - Wages, Compensation, and Labor Costs > J31 - Wage Level and Structure ; Wage Differentials; J - Labor and Demographic Economics > J6 - Mobility, Unemployment, Vacancies, and Immigrant Workers > J64 - Unemployment: Models, Duration, Incidence, and Job Search; J - Labor and Demographic Economics > J7 - Labor Discrimination > J71 - Discrimination

References

Altonji, Joseph and Nicolas Williams, 2005, Do wages rise with job seniority? A reassessment. Industrial and Labor Relations Review 58(3), 370-97.

Altonji, Joseph and Robert Shakotko, 1987, Do wages rise with job seniority? Review of Economic Studies 54(3), 437-59.

Becker, Elizabeth and Cotton M. Lindsay, 1994, Sex differences in tenure profiles: Effects of shared firm-specific investment. Journal of Labor Economics 12(1), 98-118.

Booth, Alison, 2009, Gender and competition. Labour Economics 16(6), 599-606.

Bowles, Samuel, Herbert Gintis and Melissa Osborne, 2001, Incentive-enhancing preferences: Personality, behavior and earnings. American Economic Review 91(2), 155-58.

Bowlus, Audra, 1997, A search interpretation of male-female wage differentials. Journal of Labor Economics 15(4), 625-57.

Bowlus, Audra and Zvi Eckstein, 2002, Discrimination and skill differences in an equilibrium search model. International Economic Review 43(4), 1309-1345.

Bratsberg, Bernt and Dek Terrell, 1998, Experience, tenure, and wage growth of yong black and white men. Journal of Human Resources 33(3), 658-82.

Burdett, Ken and Melvyn Coles, 2003, Equilibrium wage-tenure contracts. Econometrica 71(5), 1377-1404.

Burdett, Ken and Melvyn Coles, 2010, Wage/tenure contracts with heterogeneous firms. Journal of Economic Theory 145(4), 1408-1435.

Burdett, Ken and Dale Mortensen, 1998, Wage differentials, employer size, and unemployment. International Economic Review 39(2), 257-273.

Fang, Zheng and Chris Sakellariou, 2013, Discrimination in the Equilibrium Search Model with Wage-Tenure Contracts. Annals of Economics and Finance 14(2), 451-480.

Flabbi, Luca, 2010, Gender discrimination estimation in a search model with matching and bargaining. International Economic Review 51(3), 745-783.

Flabbi, Luca and Andrea Moro, 2010, The effect of job flexibility on female labor market outcomes: Estimates from a search and bargaining Model. Institute for the Study of Labor (IZA) Discussion Papers 4829.

Goldsmith, Arthur, Jonathan Veum, and William Darity, 1997, The impact of psychological and human capital on wages. Economic Inquiry 35(4), 815-29.

Hersch, Joni and Patricia B. Reagan, 1997, Worker effort decisions and efficient gender-specific wage-tenure profiles. Economic Inquiry 35(1), 193-207.

Light, Audrey and Manuelita Ureta, 1995, Early-career work experience and gender wage differentials. Journal of Labor Economics 13(1), 121-54.

Muller, Gerrit and Erik Plug, 2006, Estimating the effect of personality on male and female earnings. Industrial and Labor Relations Review 60(1), 3-22.

Munasinghe, Lalith, Tania Reif and Alice Henriques, 2008, Gender gap in wage returns to job tenure and experience. Labour Economics 15(6), 1296-316.

Topel, Robert, 1991, Specific capital, mobility, and wages: Wages rise job seniority. Journal of Political Economy 99(1), 145-76.