Difference-in-Differences
Overview
1
Difference-in-Differences
1.1
Background
1.2
Estimator
1.3
Parameter Estimates
1.4
Graph
2
Placebo Tests: False Treatment
2.1
False Treatment
3
xtdidregress
commmands
3.1
World Development Index
3.2
xtdidregress
4
Postestimation Command
4.1
estat ptrends
4.2
estat trendsplot
5
Placebo Tests: False Timing
5.1
False Timing
References
Published with bookdown
Difference-in-Differences
Difference-in-Differences
Samuel Rowe adapted from Cunningham (2022)
2026-04-15
Overview
Topics:
Difference-in-Differences
Placebo Tests: False Treatment
xtdidregress command
Post-estimation tests
Placebo Tests: False Timing