1. Core Methodological Differences
Time-Based Regression (TBR)
GeoLift (SparseSC)
2. Why GeoLift (SparseSC) is Methodologically Superior
A. The Extrapolation vs. Interpolation Problem
B. Handling Heterogeneous Geographic Shocks
C. Overfitting and Pre-Treatment Noise
D. The “Small Sample Size” Bayesian Argument
3. Summary
GeoLift Documentation
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Explanation
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