Empirical Economics

, Volume 39, Issue 1, pp 111–137 | Cite as

Identification of the effects of dynamic treatments by sequential conditional independence assumptions

  • Michael Lechner
  • Ruth Miquel
Original Paper


This paper approaches the dynamic analysis of the effects of training programs for the unemployed in West Germany, or in general the effects of sequences of interventions, from a potential outcome perspective. The identifying power of different assumptions concerning the connection between the dynamic selection process and the outcomes of different sequences is discussed. When participation in the particular sequence of programs is decided period by period depending on its success so far, many parameters of interest are no longer identified. Nevertheless, some interesting dynamic forms of the average treatment effect are identified by a sequential randomization assumption. Based on this approach, we present some new results on the effectiveness of West-German training programs.


Labor market effects of training programs Dynamic treatment regimes Nonparametric identification Causal effects Sequential randomization Program evaluation Treatment effects Dynamic matching Panel data 

JEL Classification

C21 C31 J68 


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Swiss Institute for Empirical Economic Research (SEW)University of St. GallenSt. GallenSwitzerland

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