Difference-in-Differences: When Time and Space Matter

  • Marco Percoco
Part of the SpringerBriefs in Regional Science book series (BRIEFSREGION)


When units are observed across time and space and treatment occurs at a certain point in time for only some units, difference-in-differences can be used to estimate the impact of a policy. This chapter discusses standard identifying assumption of the policy impact through this parametric technique.


Panel data Difference-in-differences 


  1. Baltagi B (2003) Econometric analysis of panel data. Wiley, New YorkGoogle Scholar
  2. Bertrand M, Duflo E, Mullainathan S (2004) How much should we trust differences-in-differences estimates? Q J Econ 119(1):249–275CrossRefGoogle Scholar

Copyright information

© The Author(s) 2014

Authors and Affiliations

  1. 1.Institutional Analysis and Public ManagementBocconi UniversityMilanItaly

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