Pre-registration
The Singapore-China FTA, effective 2009-01-01, produced negligible measurable trade-creation effects on Singapore aggregate trade ratios because Singapore's trade was already extremely liberalised under unilateral free-port policy and pre-existing ASEAN-China integration. The null-prediction is that Singapore's trade- openness trajectory should not show a structural break at 2009.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
SUPPORTED (null) if the SGP-vs-HKG difference in trade-openness change from 2004-2008 to 2009-2013 is within +/- 5 pp. REFUTED (rejecting the null) if SGP shows a >5 pp positive gap relative to HKG.
formal test & threshold
test: descriptive_sgp_vs_hkg_2009_fta_break threshold: PRIMARY: |delta_openness(SGP) - delta_openness(HKG)| <= 5 pp.
Method
- Template
descriptive- Clustering
none- Sample
- 6 countries · 1995 – 2019
- Evidence type
- descriptive
Descriptive structural-break test. Pre/post-2009 mean trade- openness comparison for Singapore vs Hong Kong (the natural comparator: similar free-port, similar pre-existing liberalisation, no equivalent bilateral with China).
Data
| Variable | Source | Transform |
|---|---|---|
trade_openness_pct_gdp outcome | world_bank_wdi:NE.TRD.GNFS.ZStier 2 | level |
merchandise_exports_pct_gdp outcome | world_bank_wdi:NE.EXP.GNFS.ZStier 2 | level |
sg_chn_fta_indicator treatment | constructed:indicator = 1 for SGP from 2009-01-01tier 5 | indicator |
log_gdp_pc_pretreatment control | world_bank_wdi:NY.GDP.PCAP.KDtier 2 | log_level_at_treatment_minus_1 |
● ready · ● pending · ● reconstruct-needed
Strongest opposing argument
Every hypothesis ships with its charitable opposing argument. The framework earns credibility by handling objections at their strongest, not weakest.