Assessing the Impact of Non-Response on the Treatment Effect in the Canadian Self-Sufficiency Experiment
AbstractIn Canada, a policy aiming at helping single parents on social assistance become self-reliant was implemented on an experimental basis. The Self-Sufficiency Entry Effects Demonstration randomly selected a sample of 4,134 single parents who had applied for welfare between January 1994 and March 1995. It turned out only 3,315 took part in the experiment despite a 50% chance of receiving a generous, time-limited, earnings supplement conditional on finding a full-time jobs and leaving income assistance within a year. The purpose of this paper is to determine whether a non-response rate as high as 20% is likely to bias the measurement of the treatment effect. We compare the estimated impact of the program using experimental data only to that obtained using additional data on individuals not taking part in the experiment. We write the likelihood of various sets of information and obtain relevant estimates of program impact on welfare spell durations. We find strong evidence of non-response bias in the data. When we correct for the bias, we find that estimates that rely on experimental data only significantly underestimate the true impact of the program.
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Bibliographic InfoPaper provided by CIRPEE in its series Cahiers de recherche with number 0336.
Date of creation: 2003
Date of revision:
Social experiment; non-response bias; duration model; social assistance;
Other versions of this item:
- Thierry Kamionka & Guy Lacroix, 2003. "Assessing the Impact of Non-Response on the Treatment Effect in the Canadian Self-Sufficiency Experiment," Working Papers 2003-37, Centre de Recherche en Economie et Statistique.
- Thierry Kamionka & Guy Lacroix, 2003. "Assessing the Impact of Non-Response on the Treatment Effect in the Canadian Self-Sufficiency Experiment," CIRANO Working Papers 2003s-62, CIRANO.
- I38 - Health, Education, and Welfare - - Welfare and Poverty - - - Government Programs; Provision and Effects of Welfare Programs
- J18 - Labor and Demographic Economics - - Demographic Economics - - - Public Policy
- C41 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Duration Analysis; Optimal Timing Strategies
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- van den Berg, Gerard J & Lindeboom, Maarten & Dolton, Peter J, 2004.
"Survey non-response and unemployment duration,"
Working Paper Series
2004:12, IFAU - Institute for Evaluation of Labour Market and Education Policy.
- Cobb-Clark, Deborah A. & Ryan, Chris & Breunig, Robert, 2003.
"A Couples-Based Approach to the Problem of Workless Families,"
IZA Discussion Papers
864, Institute for the Study of Labor (IZA).
- Deborah Cobb-Clark & Chris Ryan & Robert Breunig, 2006. "A Couples-Based Approach to the Problem of Workless Families," The Economic Record, The Economic Society of Australia, vol. 82(259), pages 428-444, December.
- Deborah Cobb-Clark & Chris Ryan & Robert Breunig, 2005. "A Couples-based Approach to the Problem of Workless Families," ANU Working Papers in Economics and Econometrics 2005-454, Australian National University, College of Business and Economics, School of Economics.
- Hoynes, Hilary & Bitler, Marianne P. & Gelbach, Jonah B., 2005.
"Distributional Impacts of the Self-Sufficiency Project,"
05-30, University of California at Davis, Department of Economics.
- Bitler, Marianne P. & Gelbach, Jonah B. & Hoynes, Hilary W., 2008. "Distributional impacts of the Self-Sufficiency Project," Journal of Public Economics, Elsevier, vol. 92(3-4), pages 748-765, April.
- Marianne P. Bitler & Jonah B. Gelbach & Hilary W. Hoynes, 2005. "Distributional Impacts of the Self-Sufficiency Project," NBER Working Papers 11626, National Bureau of Economic Research, Inc.
- Hilary W. Hoynes & Marianne P Bitler & Jonah B. Gelbach, 2005. "Distributional Impacts of the Self-Sufficiency Project," Working Papers 530, University of California, Davis, Department of Economics.
- Gerard J. van den Berg & Maarten Lindeboom & Peter J. Dolton, 2004. "Survey Non-response and Unemployment Duration," Tinbergen Institute Discussion Papers 04-094/3, Tinbergen Institute.
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