Longitudinal Analyses of the Effects of Trade Unions
This paper examines how measurement error biases longitudinal estimates of union effects. It develops numerical examples, statistical models, and econometric estimates which indicate that measurement error is a major problem in longitudinal data sets, so that longitudinal analyses do not provide the research panacea for determining the effects of unionism (or other economic forces) some have suggested. There are three major findings:1) The difference between the cross-section and longitudinal estimates is attributable in large part to random error in the measurement of who changes union status. Given modest errors of measurement, of the magnitudes observed,and a moderate proportion of workers changing union status, also of the magnitudes observed, measurement error biases downward estimated effects of unions by substantial amounts. 2) Longitudinal analysis of the effects of unionism on nonwage and wage outcomes tends to confirm the significant impact of unionism found in cross-section studies, with the longitudinal estimates of both nonwage and wage outcomes lover in the longitudinal analysis than in the cross-section analysis of the same data set. 3) The likely upward bias of cross-section estimates of the effect of unions and the likely downward bias of longitudinal estimates suggests that,under reasonable conditions, the two sets of estimates bound the "true" union impact posited in standard models of what unions do.
|Date of creation:||Sep 1983|
|Publication status:||published as Journal of Labor Economics, Vol. 2, no. 1, (January 1984): pp. 1-26.|
|Contact details of provider:|| Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.|
Web page: http://www.nber.org
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Richard B. Freeman, 1980.
"Unionism and the Dispersion of Wages,"
Cornell University, ILR School, vol. 34(1), pages 3-23, October.
- Mellow, Wesley S, 1981. "Unionism and Wages: A Longitudinal Analysis," The Review of Economics and Statistics, MIT Press, vol. 63(1), pages 43-52, February.
- Aigner, Dennis J., 1973. "Regression with a binary independent variable subject to errors of observation," Journal of Econometrics, Elsevier, vol. 1(1), pages 49-59, March.
- Charles Brown, 1980. "Equalizing Differences in the Labor Market," The Quarterly Journal of Economics, Oxford University Press, vol. 94(1), pages 113-134.
- Freeman, Richard Barry, 1984.
"Longitudinal Analyses of the Effects of Trade Unions,"
4631951, Harvard University Department of Economics.
- Freeman, Richard B, 1984. "Longitudinal Analyses of the Effects of Trade Unions," Journal of Labor Economics, University of Chicago Press, vol. 2(1), pages 1-26, January.
- Richard B. Freeman, 1983. "Longitudinal Analyses of the Effects of Trade Unions," NBER Working Papers 1207, National Bureau of Economic Research, Inc.
- Chamberlain, Gary, 1982. "Multivariate regression models for panel data," Journal of Econometrics, Elsevier, vol. 18(1), pages 5-46, January.
- Jacob Mincer, 1981. "Union Effects: Wages, Turnover, and Job Training," NBER Working Papers 0808, National Bureau of Economic Research, Inc.
- repec:uwp:jhriss:v:11:y:1976:i:4:p:462-483 is not listed on IDEAS
- Duane E. Leigh, 1981. "The Effect of Unionism on Workers' Valuation of Future Pension Benefits," ILR Review, Cornell University, ILR School, vol. 34(4), pages 510-521, July.
- John M. Abowd & Henry S. Farber, 1982. "Job Queues and the Union Status of Workers," ILR Review, Cornell University, ILR School, vol. 35(3), pages 354-367, April.
- Barry T. Hirsch, 1982. "The Interindustry Structure of Unionism, Earnings, and Earnings Dispersion," ILR Review, Cornell University, ILR School, vol. 36(1), pages 22-39, October.
- Gerald S. Goldstein & Mark V. Pauly, 1976. "Group Health Insurance as a Local Public Good," NBER Chapters, in: The Role of Health Insurance in the Health Services Sector, pages 73-114 National Bureau of Economic Research, Inc.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:1207. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.