26.4 Limitations of Quasi-Experiments

Researchers should explicitly discuss the limitations of their quasi-experimental approach.

Key Questions to Address:

1. What are the identification assumptions?
   • Clearly state the assumptions required for causal inference.
2. What are the threats to validity?
   • Consider potential confounders, measurement errors, and violations of SUTVA.
3. How do you address these threats?
   • Describe robustness checks and alternative specifications.
   • Suggest directions for future research to improve causal identification.

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