This method improves reliability by reducing overfitting in multiple outcome analysis, indicating better pre-treatment assessment.
We generalize the synthetic control (SC) method to a multiple-outcome framework, where the conventional pre-treatment time dimension is supplemented with the extra dimension of related outcomes in computing the SC weights. This generalization reduces the risk of overfitting and improves the reliability of the SC method, particularly when the number of pre-treatment periods is small. To illustrate our method, we provide a new perspective on the classic SC application to the 1990 German reunification.
No takes yet. Share an insight, caveat, or question.
Tian et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: