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Estimation in a Duration Model for Evaluating Educational Programs


  • Brännäs, Kurt

    () (Department of Economics, Umeå University)


The paper proposes two estimation approaches for duration models that are subject to right censored observations and selection effects. Main focus is on accelerated duration models and the estimators are of the limited information type, i.e. they are not based on a fully specified selection model. The estimators are instrumental variable adaptations to the Powell symmetrically trimmed least squares and the Buckley-James estimators for right censored data. In a small Monte Carlo study they are found to perform well. Empirical results are presented for total time outside the unemployment state for participants in the Swedish Adult Education Initiative and labour market training. The latter ones are included as controls and are found to have significantly longer times outside the unemployment state. There are strong indications of selection effects.

Suggested Citation

  • Brännäs, Kurt, 2000. "Estimation in a Duration Model for Evaluating Educational Programs," Umeå Economic Studies 521, Umeå University, Department of Economics.
  • Handle: RePEc:hhs:umnees:0521

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    References listed on IDEAS

    1. Fiona M. Scott Morton, 1999. "Entry Decisions in the Generic Pharmaceutical Industry," Yale School of Management Working Papers ysm119, Yale School of Management.
    2. Hartley, K & Lavers, R J & Maynard, A K, 1986. "Regulation and Development Times in the U.K. Pharmaceutical Industry," Scottish Journal of Political Economy, Scottish Economic Society, vol. 33(4), pages 355-369, November.
    3. Fiona Scott Morton, 1997. "The Objectives of the FDA's Office of Generic Drugs," NBER Working Papers 6143, National Bureau of Economic Research, Inc.
    4. Robert McDonald & Daniel Siegel, 1986. "The Value of Waiting to Invest," The Quarterly Journal of Economics, Oxford University Press, vol. 101(4), pages 707-727.
    5. Newey, Whitney & West, Kenneth, 2014. "A simple, positive semi-definite, heteroscedasticity and autocorrelation consistent covariance matrix," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 33(1), pages 125-132.
    6. Michael Spence, 1973. "Job Market Signaling," The Quarterly Journal of Economics, Oxford University Press, vol. 87(3), pages 355-374.
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    Cited by:

    1. Stenberg, Anders, 2002. "Comprehensive Education for the Unemployed - Evaluating the Effectson Unemployment of the Adult Education Initiative in Sweden (Kunskapslyftet)(Kunskapslyftet)," Umeå Economic Studies 579, Umeå University, Department of Economics, revised 07 May 2003.
    2. Richardson, Katarina & van den Berg, Gerard J., 2006. "Swedish Labor Market Training and the Duration of Unemployment," IZA Discussion Papers 2314, Institute for the Study of Labor (IZA).
    3. Hujer, Reinhard & Wellner, Marc, 2000. "Berufliche Weiterbildung und individuelle Arbeitslosigkeitsdauer in West- und Ostdeutschland : eine mikroökonometrische Analyse (Further vocational training and individual duration ofunemployment in w," Mitteilungen aus der Arbeitsmarkt- und Berufsforschung, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany], vol. 33(3), pages 405-420.
    4. repec:iab:iabmit:v:33:i:3:p:405-420 is not listed on IDEAS
    5. Richardson, Katarina & van den Berg, Gerard J, 2008. "Duration dependence versus unobserved heterogeneity in treatment effects: Swedish labor market training and the transition rate to employment," Working Paper Series 2008:7, IFAU - Institute for Evaluation of Labour Market and Education Policy.
    6. Rabe, Birgitta, 2000. "Wirkungen aktiver Arbeitsmarktpolitik: Evaluierungsergebnisse für Deutschland, Schweden, Dänemark und die Niederlande," Discussion Papers, Research Unit: Labor Market Policy and Employment FS I 00-208, Social Science Research Center Berlin (WZB).

    More about this item


    Buckley-James: Powell; censoring; selection; instrumental variable; adult education initiative;

    JEL classification:

    • C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
    • C24 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Truncated and Censored Models; Switching Regression Models; Threshold Regression Models
    • I20 - Health, Education, and Welfare - - Education - - - General
    • J64 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Unemployment: Models, Duration, Incidence, and Job Search

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