coresynth-package: coresynth: Fast and Unified Synthetic Control Methods

In coresynth: Fast and Unified Synthetic Control Methods

coresynth: Fast and Unified Synthetic Control Methods

Description

A unified 'Formula' interface to the Synthetic Control Method (SCM) and related panel-data causal inference estimators: Synthetic Difference-in-Differences (SDID), Generalized Synthetic Control (GSC), Matrix Completion (MC), Time-Aware Synthetic Control (TASC), and Synthetic Interventions (SI), together with an experimental-design variant. Computational bottlenecks (quadratic programming, singular value decomposition, and Kalman filtering) are implemented in 'C++' via 'RcppArmadillo'. Methods are described in Abadie, Diamond and Hainmueller (2010) \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1198/jasa.2009.ap08746")}, Arkhangelsky, Athey, Hirshberg, Imbens and Wager (2021) \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1257/aer.20190159")}, Xu (2017) \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1017/pan.2016.2")}, Athey, Bayati, Doudchenko, Imbens and Khosravi (2021) \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1080/01621459.2021.1891924")}, and Agarwal, Shah and Shen (2025) \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1287/opre.2025.1590")}.

Parallel computation

The in-space placebo refits of mspe_ratio_pval() and sdid_inference(), and the multi-start search of scm_fit(), run in parallel with OpenMP. Set options(coresynth.threads = n) to cap the number of threads. Left unset, the OpenMP default applies (all cores, or OMP_NUM_THREADS / OMP_THREAD_LIMIT when set), except under ⁠R CMD check --as-cran⁠, where at most two threads are used. The results do not depend on the thread count.

Author(s)

Maintainer: Yosuke Abe [e-mail]

Authors:

• Yosuke Abe [e-mail]

See Also

Useful links:

• https://github.com/yo5uke/coresynth

• https://yo5uke.com/coresynth/

• Report bugs at https://github.com/yo5uke/coresynth/issues

coresynth documentation built on Oct. 11, 2026, 5:07 p.m.