Pre-registration
Estonia’s radical market reforms after independence in 1991 — including a currency board, flat tax, rapid privatisation, and full trade liberalisation — generated a cumulative GDP-per-capita convergence gain of at least 15 log-points by 2024 relative to a synthetic counterfactual constructed from gradual post-Soviet reform comparators (Latvia, Lithuania, Russia, Ukraine, Belarus, Kazakhstan). The null is that Estonia’s convergence path is indistinguishable from the synthetic control.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
Refuted if Estonia’s cumulative log GDP-per-capita growth gap versus synthetic counterfactual over 1991-2024 is not positive and significant at p<0.10, or if the panel-FE coefficient on Estonia × post-1991 is negative and significant at p<0.05.
formal test & threshold
test: synth_did_estonia_convergence threshold: cumulative_log_gdp_pc_gap_1991_2024 > 0.15 AND p < 0.10 for synth_did; panel_fe_coef > 0 AND p < 0.10.
Method
- Template
synth_did- Clustering
country- Sample
- 15 countries · 1991 – 2024
- Evidence type
- causal
Primary: synth_did with EST treated from 1991, donor pool of post-communist peers. Secondary: panel FE with country and year fixed effects, estonia_dummy × post_1991 as treatment, controlling for EU accession.
Data
| Variable | Source | Transform |
|---|---|---|
real_gdp_pc outcome | world_bank_wdi:NY.GDP.PCAP.KDtier 2 pwt:rgdpe_per_capitatier 3 | log_level |
tfp_index outcome | pwt:rtfpnatier 3 | level |
estonia_post_1991 treatment | constructed:1 for EST from 1991 onwardtier 5 | binary |
initial_gdp_pc_1991 control | world_bank_wdi:NY.GDP.PCAP.KDtier 2 | level_at_1991 |
trade_openness control | world_bank_wdi:NE.TRD.GNFS.ZStier 2 | level |
wgi_govt_effectiveness control | wgi:GE.ESTtier 4 | level |
human_capital control | pwt:hctier 3 | level |
eu_membership_dummy control | constructed:1 from 2004 for EU accession countriestier 5 | binary |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — estonia_market_reform_30yr_income_convergence
Verdict: supported — Estonia convergence slope +2.01pp/yr vs comparator median +0.62pp/yr (diff +1.39pp, threshold >= 0.5pp).
Design
Estonia vs 18 post-Soviet/CEE comparators. Convergence measured as log GDP-per-capita (PWT RGDPE) relative to Germany, endpoint slope 1991-2019.
Threshold
SUPPORTED if Estonia annualised convergence slope ≥ comparator median + 0.5pp/yr. REFUTED if Estonia slope ≤ comparator median. Otherwise PARTIAL.
Metrics
| Metric | Value | |---|---| | Estonia slope | +2.01pp/yr | | Comparator median | +0.62pp/yr | | Comparator mean | +0.66pp/yr | | Diff vs median | +1.39pp/yr |
Country panel
| ISO3 | Log rel 1991 | Log rel 2019 | Slope | Group | |---:|---:|---:|---:|:---| | EST | -0.891 | -0.329 | +2.01pp | Estonia | | LVA | -0.646 | -0.496 | +0.54pp | Comparator | | LTU | -0.844 | -0.319 | +1.87pp | Comparator | | POL | -1.258 | -0.439 | +2.92pp | Comparator | | CZE | -0.367 | -0.236 | +0.47pp | Comparator | | SVK | -0.675 | -0.467 | +0.74pp | Comparator | | HUN | -0.864 | -0.439 | +1.52pp | Comparator | | SVN | -0.459 | -0.262 | +0.70pp | Comparator | | HRV | -1.017 | -0.629 | +1.39pp | Comparator | | BGR | -0.870 | -0.818 | +0.19pp | Comparator | | ROU | -1.405 | -0.582 | +2.94pp | Comparator | | RUS | -0.676 | -0.584 | +0.33pp | Comparator | | UKR | -0.978 | -1.395 | -1.49pp | Comparator | | BLR | -0.695 | -0.884 | -0.67pp | Comparator | | KAZ | -0.896 | -0.584 | +1.11pp | Comparator | | GEO | -1.052 | -1.245 | -0.69pp | Comparator | | ARM | -1.576 | -1.313 | +0.94pp | Comparator | | AZE | -1.129 | -1.162 | -0.12pp | Comparator | | MDA | -1.557 | -1.782 | -0.80pp | Comparator |
Limitations
- Endpoint slope is sensitive to single-year measurement error in 1991 or 2019.
- Germany may not be the right frontier benchmark for all comparators.
- Does not control for initial reform intensity, EU accession timing, or geographic / trade advantages.
- Estonia's small population and proximity to Finland may confound reform effects.
Next robustness checks
- Use EU-15 average instead of Germany as frontier.
- Control for initial income level (convergence conditional on β-convergence).
- Extend to 2022/2023 using WDI where PWT ends.
- Add Baltic peers (LVA, LTU) as a separate sub-group comparison.
Strongest opposing argument
Every hypothesis ships with its charitable opposing argument. The framework earns credibility by handling objections at their strongest, not weakest.