#methodological rigourSector-based controls remain a vulnerability
Eligibility compares treated sectors such as manufacturing with excluded sectors such as agriculture and most services. Parallel pre-trends and controls mitigate the concern, but sector-specific post-2014 shocks remain a meaningful identification risk.
↳ Section 2.1; Section 3.2; Table II
#methodological rigourStructural claims sometimes overstate identification
The paper sometimes says alternative explanations are ruled out or that only financial-constraint relaxation can shift the capital mix. Given the observational DiD and CiC assumptions, these statements are stronger than the design conclusively establishes.
↳ Section 3.1 p. 13; Section 3.3 pp. 17–18; Conclusion pp. 28–29
#methodological rigourWedge magnitudes depend on Cobb-Douglas assumption
The paper assumes σ = 1 because firm-level price data are unavailable. It states that other elasticities would rescale wedge changes, but it does not provide sensitivity bounds for the recovered wedge magnitudes.
↳ Section 3.1 pp. 13–14; Section 4.3
#reportingReporting inconsistencies reduce precision
The text describes cash and profit effects inconsistently across the introduction, Section 3.6, and Tables V–VI. These issues do not overturn the central result, but they warrant correction before relying on secondary-effect magnitudes.
↳ Introduction pp. 2–3; Section 3.6 pp. 21–22; Tables V–VI