difference-in-differences

When Can We Use Two-Way Fixed-Effects (TWFE): A Comparison of TWFE and Novel Dynamic Difference-in-Differences Estimators

We assess the performance of Two-ways Fixed-Effects and Dynamic DiD estimators under violations of key assumptions.

London Congestion Charge: The Impact on Air Pollution and School Attendance by Socioeconomic Status

We inquire how more stringent traffic regulations implemented in Central London from late 2015 affected pollution levels and school absences.