Pre-registration
The ASEAN-China Free Trade Area (ACFTA), with the goods agreement effective 2010-01-01 for the original ASEAN-6, raised ASEAN-6 merchandise-export intensity over the 2010-2019 window relative to non-ASEAN comparator economies. The bilateral-tariff-removal claim is that ACFTA's elimination of most tariffs on ASEAN-6 exports to China shifted regional supply-chain participation toward Chinese final-assembly demand.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
SUPPORTED if Callaway-Sant'Anna ATT on merchandise-exports over h=5y is positive and significant at p<0.10. PARTIAL if ATT is positive but insignificant. REFUTED if ATT is negative at p<0.10.
formal test & threshold
test: cs_did_acfta_2010_export_intensity threshold: PRIMARY: cs_did_ATT(merchandise_exports, h=5y) > 0 at p<0.10. INFORMATIVE: ex-SGP coefficient retained at >=0.6 × full.
Method
- Template
did_callaway_santanna- Fixed effects
country, year- Clustering
country- Sample
- 15 countries · 2000 – 2019
- Evidence type
- causal
Callaway-Sant'Anna staggered DiD with 2010 ASEAN-6 cohort and 2015 CLMV cohort. Donor pool = non-ACFTA emerging Asian and Latin American economies. Robustness: drop SGP (financial- centre outlier inflates trade ratios).
Data
| Variable | Source | Transform |
|---|---|---|
merchandise_exports_pct_gdp outcome | world_bank_wdi:NE.EXP.GNFS.ZStier 2 | level |
trade_openness_pct_gdp outcome | world_bank_wdi:NE.TRD.GNFS.ZStier 2 | level |
log_manufacturing_value_added outcome | world_bank_wdi:NV.IND.MANF.KDtier 2 | log |
acfta_2010_indicator treatment | constructed:indicator = 1 for original ASEAN-6 from 2010-01-01; VNM, MMR, KHM, LAO from 2015-01-01tier 5 | indicator |
log_gdp_pc_pretreatment control | world_bank_wdi:NY.GDP.PCAP.KDtier 2 | log_level_at_treatment_minus_1 |
investment_share control | world_bank_wdi:NE.GDI.TOTL.ZStier 2 | level |
real_effective_exchange_rate control | imf:REERtier 2 | log |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — trade_lib_acfta_asean_china_2010_export_growth
Verdict: PARTIAL — ATT=+3.31, p=0.324, N=295, treated_countries=1 (above α=0.10)
Pre-registration
- Claim: The ASEAN-China Free Trade Area (ACFTA), with the goods agreement effective 2010-01-01 for the original ASEAN-6, raised ASEAN-6 merchandise-export intensity over the 2010-2019 window relative to non-ASEAN comparator economies. The bilateral-tariff-removal claim is that ACFTA's elimination of most tariffs on ASEAN-6 exports to China shifted regional supply-chain participation toward Chinese final-assembly demand.
- Falsification rule: SUPPORTED if Callaway-Sant'Anna ATT on merchandise-exports over h=5y is positive and significant at p<0.10. PARTIAL if ATT is positive but insignificant. REFUTED if ATT is negative at p<0.10.
Estimate (Callaway-Sant'Anna staggered DiD, TWFE approximation)
- coefficient: 3.3095965773036653
- std_error: 3.354671570693728
- p_value: 0.3238566636254986
- n_obs: 295
- n_countries: 15
- r_squared_within: 0.9752506565209791
- fe_entity: True
- fe_time: True
- cluster: country
- method: Callaway-Sant'Anna TWFE fallback (linearmodels failed: No module named 'linearmodels')
- n_treated_countries: 1
- cohort_years: [2010]
- dropped_controls_due_to_overlap: []
Variables resolved
world_bank_wdi:NE.EXP.GNFS.ZS→ merchandise_exports_pct_gdp (outcome, n=10904)world_bank_wdi:NE.TRD.GNFS.ZS→ trade_openness_pct_gdp (outcome, n=10714)world_bank_wdi:NV.IND.MANF.KD→ log_manufacturing_value_added (outcome, n=8624)world_bank_wdi:NY.GDP.PCAP.KD→ log_gdp_pc_pretreatment (controls, n=14066)world_bank_wdi:NE.GDI.TOTL.ZS→ investment_share (controls, n=10428)
Missing data
constructed: indicator = 1 for original ASEAN-6 from 2010-01-01; VNM, MMR, KHM, LAO from 2015-01-01(treatment)imf:REER(controls)
Generated by scripts/run_did_callaway_santanna.py at 2026-04-30T13:28:10+00:00
Strongest opposing argument
Every hypothesis ships with its charitable opposing argument. The framework earns credibility by handling objections at their strongest, not weakest.