NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
loading...

Guillaume Pouliot

1307 E 60th St, Chicago, IL 60637
chicago, il 60637
US

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org
Institutional Affiliation: Univ of Chicago

NBER Working Papers and Publications

January 2020Combining Matching and Synthetic Controls to Trade off Biases from Extrapolation and Interpolation
with Maxwell Kellogg, Magne Mogstad, Alexander Torgovitsky: w26624
The synthetic control method is widely used in comparative case studies to adjust for differences in pre-treatment characteristics. A major attraction of the method is that it limits extrapolation bias that can occur when untreated units with different pre-treatment characteristics are combined using a traditional adjustment, such as a linear regression. Instead, the SC estimator is susceptible to interpolation bias because it uses a convex weighted average of the untreated units to create a synthetic untreated unit with pre-treatment characteristics similar to those of the treated unit. More traditional matching estimators exhibit the opposite behavior: They limit interpolation bias at the potential expense of extrapolation bias. We propose combining the matching and synthetic control est...
 
Publications
Activities
Meetings
NBER Videos
Themes
Data
People
About

National Bureau of Economic Research, 1050 Massachusetts Ave., Cambridge, MA 02138; 617-868-3900; email: info@nber.org

Contact Us