The author uses data from annual wage surveys conducted in 1994 and 1995 by Medical Economics Research Group to study differences in pay and productivity between male and female veterinarians in the wage-salary sector. The gender gap in average earnings was 15%. When controls for various observable characteristics are added to the analysis, the earnings gap narrows to 9%, based on the most conservative estimates. Using unique revenue production measures in an analysis holding other factors constant, the author finds that women's productivity was not statistically different from men's. Together, the findings of gender differences in earnings but not in productivity are consistent with the presence of wage discrimination, but the author explores other possible explanations as well.
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References
1.
AignerDennis J.CainGlen G., 1977. “Statistical Theories of Discrimination in Labor Markets.”Industrial and Labor Relations Review, Vol. 30, No. 2 (January), pp. 178–87.
2.
American Veterinary Medical Association, Center for Information Management. 1994. Veterinary Demographic Data Resource, Vol. 3. Schaumburg, Ill.
3.
BlauFrancine D.KahnLawrence M., 1997. “Swimming Upstream: Trends in the Gender Wage Differential in the 1980s.”Journal of Labor Economics, Vol. 15, No. 1 (January), pp. 1–42.
4.
BodenRichard J.1999. “Flexible Working Hours, Family Responsibilities, and Female Self-Employment: Gender Differences in Self-Employment Selection.”American Journal of Economics and Sociology, Vol. 58, No. 1 (January), pp. 71–83.
5.
BowmanDouglas L.1996. “Do You Resist Fee Increases More Than Clients Do?”Veterinary Economics, Vol. 36, No. 10 (October), pp. 48–53.
6.
CainGlen G.1986. “The Economic Analysis of Labor Market Discrimination: A Survey.” In AshenfelterOrleyLayardRichard, eds., Handbook of Labor Economics, Vol. 1. Amsterdam: North-Holland, pp. 693–785.
7.
DevineTheresa J.1994a. “Changes in Wage-and-Salary Returns to Skill and the Recent Rise in Female Self-Employment.”American Economic Review, Vol. 84, No. 2 (May), pp. 108–13.
8.
DevineTheresa J., 1994b. “Characteristics of Self-Employed Women in the United States.”Monthly Labor Review, Vol. 117, No. 3 (March), pp. 20–34.
9.
FosterAndrew D.RosenzweigMark R., 1993. “Information, Learning, and Wage Rates in Low-Income Rural Areas.”Journal of Human Resources, Vol. 28, No. 4 (Fall), pp. 759–90.
10.
GintherDonna K.HayesKathy J., 1999. “Gender Differences in Salary and Promotion in the Humanities.”American Economic Review, Vol. 89, No. 2 (May), pp. 397–402.
HeckmanJames J.1979. “Sample Selection Bias as a Specification Error.”Econometrica, Vol. 47, No. 1 (January), pp. 153–61.
13.
HellersteinJudith K.NeumarkDavidTroskeKenneth R., 1999. “Wages, Productivity, and Worker Characteristics: Evidence from Plant-Level Production Functions and Wage Equations.”Journal of Labor Economics, Vol. 17, No. 3 (July), pp. 406–46.
14.
HolzerHarry J.1990. “The Determinants of Employee Productivity and Earnings.”Industrial Relations, Vol. 29, No. 3 (Fall), pp. 403–22.
15.
HundleyGreg. 2000. “Male/Female Earnings Differences in Self-Employment: The Effects of Marriage, Children, and the Household Division of Labor.”Industrial and Labor Relations Review, Vol. 54, No. 1 (October), pp. 95–114.
16.
KehrerBarbara H.1976. “Factors Affecting the Incomes of Men and Women Physicians: An Exploratory Analysis.”Journal of Human Resources, Vol. 11, No. 4 (Fall), pp. 526–45.
17.
LangwellKathyrn M.1982. “Factors Affecting the Incomes of Men and Women Physicians: Further Explorations.”Journal of Human Resources, Vol. 17, No. 2 (Spring), pp. 261–75.
18.
LazearEdward P.1979. “Why Is There Mandatory Retirement?”Journal of Political Economy, Vol. 87, No. 6 (December), pp. 1261–84.
19.
LightAudreyUretaManuelita. 1995. “Early Career-Work Experience and Gender Wage Differentials.”Journal of Labor Economics, Vol. 13, No. 1 (January), pp. 121–54.
20.
LongJ. Scott. 1997. Regression Models for Categorical and Limited Dependent Variables. Thousand Oaks, Calif.: Sage.
21.
MacphersonDavid A.1988. “Self-Employment and Married Women.”Economic Letters, Vol. 28, No. 3, pp. 281–84.
22.
McCaffertyOwen. 1992. “An Inside Look at Associate Pay.”Veterinary Economics, Vol. 33, No. 4 (April), pp. 30–48.
23.
McDowellJohn M.SingellLarry D.Jr.ZiliakJames P., 1999. “Cracks in the Glass Ceiling: Gender and Promotion in the Economics Profession.”American Economic Review, Vol. 89, No. 2 (May), pp. 392–96.
24.
MincerJacobPolachekSolomon. 1974. “Family Investments in Human Capital: Earnings of Women.”Journal of Political Economy, Vol. 82, No. 2 (March-April), pp. S76–S108.
25.
MorganLaurie A.1998. “Glass-Ceiling Effect or Cohort Effect? A Longitudinal Study of the Gender Earnings Gap for Engineers, 1982 to 1989.”American Sociological Review, Vol. 63, No. 4 (August), pp. 479–93.
26.
NeumarkDavid. 1999. “Wage Differentials by Race and Sex: The Roles of Taste Discrimination and Labor Market Information.”Industrial Relations, Vol. 38, No. 3 (July), pp. 414–45.
27.
OaxacaRonald L.1973. “Male-Female Wage Differentials in Urban Labor Markets.”International Economic Review, Vol. 14, No. 3 (October), pp. 693–709.
28.
StewartMark B.1983. “On Least Squares Estimation When the Dependent Variable Is Grouped.”Review of Economic Studies, Vol. 50, No. 4 (October), pp. 737–53.
29.
U.S. Bureau of the Census. 1990. Decennial Census Public Use Microdata 5% Sample. Washington D.C.
30.
U.S. Department of Labor. 1995. Occupational Outlook Handbook. Washington, D.C.: GPO.
31.
U.S. Department of Labor. 2001. Employment and Earnings. Washington, D.C.: GPO.
WoodRobert G.CorcoranMary E.CourantPaul N., 1993. “Pay Differences among the Highly Paid: The Male-Female Earnings Gap in Lawyers' Salaries.”Journal of Labor Economics, Vol. 11, No. 3 (July), pp. 417–41.
