Carlos Guevara

Carlos Guevara

Research Software

csdid: Difference-in-Differences with Multiple Time Periods

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csdid is a Python implementation of the Difference-in-Differences estimator with multiple time periods proposed by Callaway and Sant'Anna (2021). The package has surpassed 400,000 downloads.

Developed by Alexander Quispe and Carlos Guevara, in collaboration with Pedro H. C. Sant'Anna and Brantly Callaway.

My contributions include treatment-effect aggregation and visualization tools.

Reference: Callaway, B., & Sant'Anna, P. H. C. (2021). Difference-in-Differences with Multiple Time Periods. Journal of Econometrics, 225(2), 200-230. [Paper]