Pre-registration
Mexico's 2023 Pensión Universal expansion (DOF January 2023, raising the universal-noncontributory pension to all adults 65+ at twice the previous level under AMLO's constitutional amendment) raised social-spending share of GDP by at least 1 percentage point of GDP within two fiscal years, with no offsetting domestic-revenue measure, generating a measurable structural-fiscal-balance deterioration visible in IMF Article IV monitoring and BdM stability reports.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
Refuted if MEX social-spending-share-of-GDP rises by less than 1pp 2022-2025, OR if structural- fiscal-balance does not deteriorate by at least 0.7pp of GDP over the same window, OR if elderly- poverty rate falls by more than 5pp (i.e., a large redistributive success would warrant reconsidering the fiscal-cost framing as the dominant outcome).
formal test & threshold
test: descriptive_fiscal_trajectory_vs_imf_2022_projection threshold: delta_social_spending >= +1pp AND delta_structural_balance <= -0.7pp AND delta_elderly_poverty > -5pp
Method
- Template
descriptive- Fixed effects
year- Clustering
country- Sample
- 1 countries · 2018 – 2026
- Evidence type
- descriptive
Descriptive time-series for MEX with pre-launch IMF Article IV projection as counterfactual. Compare 2023-2025 actual social-spending and fiscal-balance trajectory against 2022 IMF baseline.
Data
| Variable | Source | Transform |
|---|---|---|
social_spending_share_gdp outcome | imf:GGXG_NGDPtier 2 | level |
structural_fiscal_balance_share_gdp outcome | imf:GGSB_NPGDPtier 2 | level |
elderly_poverty_rate outcome | oecd:DSD_IDDtier 2 | level_pct |
oil_terms_of_trade control | world_bank_wdi:TT.PRI.MRCH.XD.WDtier 2 | log |
dependency_ratio control | world_bank_wdi:SP.POP.DPND.OLtier 2 | level |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — welfare_pension_mexico_universal_2023_fiscal_effect
Verdict: INCONCLUSIVE_DATA_PENDING — insufficient pre (3) or post (0) obs
Pre-registration
- Claim: Mexico's 2023 Pensión Universal expansion (DOF January 2023, raising the universal-noncontributory pension to all adults 65+ at twice the previous level under AMLO's constitutional amendment) raised social-spending share of GDP by at least 1 percentage point of GDP within two fiscal years, with no offsetting domestic-revenue measure, generating a measurable structural-fiscal-balance deterioration visible in IMF Article IV monitoring and BdM stability reports.
- Falsification rule: Refuted if MEX social-spending-share-of-GDP rises by less than 1pp 2022-2025, OR if structural- fiscal-balance does not deteriorate by at least 0.7pp of GDP over the same window, OR if elderly- poverty rate falls by more than 5pp (i.e., a large redistributive success would warrant reconsidering the fiscal-cost framing as the dominant outcome).
- Falsification test: descriptive_fiscal_trajectory_vs_imf_2022_projection
Comparison
- Error: insufficient pre (3) or post (0) obs
Extracted threshold: {'percent': 1.0}
Variables resolved
oecd:DSD_IDD@DF_IDD→ elderly_poverty_rate (outcome, publisher=oecd, n=902)world_bank_wdi:TT.PRI.MRCH.XD.WD→ oil_terms_of_trade (controls, publisher=world_bank_wdi, n=6478)world_bank_wdi:SP.POP.DPND.OL→ dependency_ratio (controls, publisher=world_bank_wdi, n=16935)
Variables missing data
imf:GGXG_NGDP(outcome, name=social_spending_share_gdp)imf:GGSB_NPGDP(outcome, name=structural_fiscal_balance_share_gdp)
Generated by scripts/run_descriptive.py at 2026-05-04T12:34:13+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.