Pre-registration
GCC economies' GDP growth volatility correlation with oil-price changes diminished measurably from the 2014-2016 oil-price collapse onwards, reflecting the cumulative effect of fiscal-buffer institutionalisation (sovereign-wealth funds, NDC frameworks), VAT introduction (UAE/SAU/BHR 2018, OMN/QAT 2022), and progress on non-oil-sector expansion. The pre-registered claim is that, in a panel-FE specification with GCC countries 2000-2024, the correlation between annual oil-price log-changes and annual real-GDP log-changes falls by at least 50% in the 2014-2024 sub-period vs the 2000- 2013 sub-period. The null counter-claim is that GCC economic cycles remain dominated by oil-price cycles and the apparent decoupling is a statistical artefact of the 2020 COVID outlier.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
Not supported if the sub-period oil-sensitivity ratio (2014-2024 beta / 2000-2013 beta) on real-GDP-growth is greater than 0.50 (i.e. less than 50% reduction in sensitivity), OR if the oil_price_change × post_2014 interaction coefficient is not significantly negative at p < 0.05. Robustness check: if including 2020 COVID flips the result direction, the decoupling claim is fragile and should be described as suggestive rather than confirmed.
formal test & threshold
test: panel_fe_sub_period_beta_ratio_test threshold: beta_2014_2024 / beta_2000_2013 < 0.50 AND interaction_coef significant negative at p < 0.05 AND result robust to COVID inclusion/exclusion
Method
- Template
panel_fe- Fixed effects
country, year- Clustering
country- Sample
- 6 countries · 2000 – 2024
- Evidence type
- causal
Panel FE with country and year fixed effects. Primary test is the oil_price_change × post_2014 interaction coefficient. Sub-period coefficient ratio test: estimate oil-sensitivity beta separately on 2000-2013 and 2014-2024 panels; test ratio < 0.5. Robustness drops Qatar (blockade-confound) and re-runs.
Data
| Variable | Source | Transform |
|---|---|---|
real_gdp_growth outcome | world_bank_wdi:NY.GDP.MKTP.KD.ZGtier 2 imf:NGDP_RPCHtier 2 pwt:rgdpetier 3 | yoy_growth |
non_oil_gdp_growth outcome | imf:NGDP_NonOil_RPCHtier 2 | yoy_growth |
fiscal_balance_share_gdp outcome | world_bank_wdi:GC.NLD.TOTL.GD.ZStier 2 | level |
post_2014_indicator treatment | constructed:1 from 2014 onwardtier 5 | binary |
oil_price_change treatment | fred:DCOILBRENTEUtier 1 imf:POILBREtier 2 | yoy_log_change |
oil_price_x_post_2014 treatment | constructed:oil_price_change × post_2014_indicatortier 5 | interaction |
us_policy_rate control | fred:FEDFUNDStier 1 | level |
terms_of_trade control | world_bank_wdi:TT.PRI.MRCH.XD.WDtier 2 | level |
vat_introduction_indicator control | constructed:country-specific dummy from VAT-introduction yeartier 5 | binary |
pre_treatment_swf_size_share_gdp control | constructed:SWF AUM / GDP, GCC SWF list (PIF, ADIA, KIA, QIA)tier 5 | average_2010_2013 |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — mena_gcc_oil_price_decoupling_2014_2024
Verdict: INCONCLUSIVE_DATA_PENDING — treatment 'post_2014_indicator' has no cross-country variation within years under year fixed effects
Pre-registration
- Claim: GCC economies' GDP growth volatility correlation with oil-price changes diminished measurably from the 2014-2016 oil-price collapse onwards, reflecting the cumulative effect of fiscal-buffer institutionalisation (sovereign-wealth funds, NDC frameworks), VAT introduction (UAE/SAU/BHR 2018, OMN/QAT 2022), and progress on non-oil-sector expansion. The pre-registered claim is that, in a panel-FE specification with GCC countries 2000-2024, the correlation between annual oil-price log-changes and annual real-GDP log-changes falls by at least 50% in the 2014-2024 sub-period vs the 2000- 2013 sub-period. The null counter-claim is that GCC economic cycles remain dominated by oil-price cycles and the apparent decoupling is a statistical artefact of the 2020 COVID outlier.
- Falsification rule: Not supported if the sub-period oil-sensitivity ratio (2014-2024 beta / 2000-2013 beta) on real-GDP-growth is greater than 0.50 (i.e. less than 50% reduction in sensitivity), OR if the oil_price_change × post_2014 interaction coefficient is not significantly negative at p < 0.05. Robustness check: if including 2020 COVID flips the result direction, the decoupling claim is fragile and should be described as suggestive rather than confirmed.
- Falsification test: panel_fe_sub_period_beta_ratio_test
Estimate
- Error: treatment 'post_2014_indicator' has no cross-country variation within years under year fixed effects
Variables resolved
world_bank_wdi:NY.GDP.MKTP.KD.ZG; imf:NGDP_RPCH; pwt:rgdpe→ real_gdp_growth (outcome, publisher=world_bank_wdi, n=13897)world_bank_wdi:GC.NLD.TOTL.GD.ZS→ fiscal_balance_share_gdp (outcome, publisher=world_bank_wdi, n=5147)constructed: 1 from 2014 onward→ post_2014_indicator (treatment, publisher=constructed, n=150)fred:DCOILBRENTEU; imf:POILBRE→ oil_price_change (treatment, publisher=fred, n=40)constructed: oil_price_change × post_2014_indicator→ oil_price_x_post_2014 (treatment, publisher=constructed, n=150)fred:FEDFUNDS→ us_policy_rate (controls, publisher=fred, n=438)world_bank_wdi:TT.PRI.MRCH.XD.WD→ terms_of_trade (controls, publisher=world_bank_wdi, n=6478)
Variables missing data
imf:NGDP_NonOil_RPCH(outcome, name=non_oil_gdp_growth) — vintage not on diskconstructed: country-specific dummy from VAT-introduction year(controls, name=vat_introduction_indicator) — vintage not on diskconstructed: SWF AUM / GDP, GCC SWF list (PIF, ADIA, KIA, QIA)(controls, name=pre_treatment_swf_size_share_gdp) — vintage not on disk
Generated by scripts/run_panel_fe.py at 2026-06-29T17:52:57+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.
Notes
Designed as a panel-FE complement to the country-specific Saudi/UAE hypotheses. Tests the broader regional decoupling claim that motivated the country-level reform programmes.