Replication package for "Specific Duties, Recorded Imports, and Domestic Production: Evidence from Kazakhstan's Customs Union Accession"

Replication package for the article "Specific Duties, Recorded Imports, and Domestic Production: Evidence from Kazakhstan's Customs Union Accession" (submitted to International Economics, 2026). Contents: data/ (13 CSV files: 252 bulletin products with sector, HS 2007 code and 2010 tariff dose; monthly physical output 2004–2019 and its publication vintages; monthly producer prices; Kazakhstan and Russia tariff lines in HS 2007 with ad valorem equivalents and alternative dose constructions; Kazakhstan's imports by partner, exports to Russia/Kyrgyzstan/Uzbekistan, and China's exports to Kazakhstan by HS 2007 line, 2005–2019; line-to-product map; annual panel for the WTO-scheduled cuts; the 50 output series bridged across the January 2010 list change); py/run_all.py (Python ≥3.10, pyfixest ≥0.60) regenerates every estimate in Tables 1–8 and Appendices B–F into tables/results.json at full precision; py/partner_panels.py, py/reclassification.py and py/sample_sizes.py regenerate Table D.3 (Panel C), Table G.1 and the sample-size rows; py/figures.py regenerates Figures 1–6 and C.1; R/ scripts (fixest, did, DIDmultiplegtDYN, HonestDiD) reproduce the fixed-effects, staggered and sensitivity estimates; tables/ contains the regenerated results and the logs of the archived Python and R runs (run_all.log, R_run_log.txt, R_warnings.csv). Version 1.3.0 (30 September 2026) follows an independent code audit: data unchanged; two code corrections with unchanged rounded estimates (Poisson grid, lagged cut); Table 1's import-weighted row and the Appendix C checks now computed by code; bridge_2010.csv added; R runner logs versions and warnings and stops on failure; HonestDiD output sets re-solved on wider grids and the China set computed on the aligned sample. Details in README.md. Sources: Bureau of National Statistics of the Republic of Kazakhstan (monthly bulletins "Main indicators of industry" and "Producer prices for selected industrial products"); WITS/TRAINS MFN national tariff lines; UN Comtrade; UNSD HS correspondence tables; Eurasian Economic Commission decisions. Trade data are derived, harmonised aggregates redistributed under UN Comtrade's terms for non-commercial use with attribution.