Tag: Event Study

xtswitchdid with Stata

On 29 July 2026, Stata announced a new StataNow update introducing xtswitchdid, a built-in command for difference in differences with switching treatments. The official Stata Blog announcement highlights…

How to trace the growth effects of isolated treaty signatures in Stata

When countries sign several trade agreements in quick succession, a standard event-study can become hard to interpret. A coefficient estimated 2 years after one signature may already reflect…