DP13477 On Event Study Designs and Distributed-Lag Models: Equivalence, Generalization and Practical Implications

Author(s): Kurt Schmidheiny, Sebastian Siegloch
Publication Date: January 2019
Keyword(s): applied microeconomics, credibility revolution, distributed-lag, event study
JEL(s): C23, C51, H00, J08
Programme Areas: Public Economics
Link to this Page: cepr.org/active/publications/discussion_papers/dp.php?dpno=13477

We discuss important features and pitfalls of panel-data event study designs. We derive the following main results: First, event study designs and distributed-lag models are numerically identical leading to the same parameter estimates after correct reparametrization. Second, binning of effect window endpoints allows identification of dynamic treatment effects even when no never-treated units are present. Third, classic dummy variable event study designs can be naturally generalized to models that account for multiple events of different sign and intensity of the treatment, which are particularly interesting for research in labor economics and public finance.