Pre-registration
Poland’s sustained market transition — shock therapy stabilisation in 1990, competition-policy enforcement, mass privatisation, and EU regulatory adoption — generated a cumulative log GDP-per-capita growth advantage of at least 10 percentage points over 1990–2024 relative to CEE peers with weaker competition and slower privatisation (Bulgaria, Romania, Croatia). The test is whether Poland outperforms a synthetic counterfactual or whether a panel treatment coefficient is positive and significant.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
Refuted if the panel-FE coefficient on Poland × post-1990 is negative and significant at p<0.05, or if Poland’s cumulative log GDP-pc gap vs synthetic counterfactual is negative over 1990–2024.
formal test & threshold
test: panel_fe_poland_transition threshold: beta_poland_post1990 > 0 AND p < 0.10; synthetic_gap > 0.
Method
- Template
panel_fe- Fixed effects
country, year- Clustering
country- Sample
- 11 countries · 1990 – 2024
- Evidence type
- causal
Primary: panel FE with POL × post-1990 interaction. Secondary: synthetic control for Poland using CEE donor pool.
Data
| Variable | Source | Transform |
|---|---|---|
real_gdp_pc outcome | world_bank_wdi:NY.GDP.PCAP.KDtier 2 | log_level |
labour_productivity outcome | world_bank_wdi:SL.GDP.PCAP.EM.KDtier 2 | level |
tfp_index outcome | pwt:rtfpnatier 3 | level |
poland_post_1990 treatment | constructed:1 for POL from 1990 onwardtier 5 | binary |
initial_gdp_pc_1990 control | world_bank_wdi:NY.GDP.PCAP.KDtier 2 | level_at_1990 |
eu_membership_dummy control | constructed:1 from 2004 for EU accession countriestier 5 | binary |
trade_openness control | world_bank_wdi:NE.TRD.GNFS.ZStier 2 | level |
wgi_rule_of_law control | wgi:RL.ESTtier 4 | level |
human_capital control | pwt:hctier 3 | level |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — poland_market_transition_30yr_growth
Verdict: INCONCLUSIVE_DATA_PENDING — treatment 'poland_post_1990' has no within-country variation under country fixed effects
Pre-registration
- Claim: Poland’s sustained market transition — shock therapy stabilisation in 1990, competition-policy enforcement, mass privatisation, and EU regulatory adoption — generated a cumulative log GDP-per-capita growth advantage of at least 10 percentage points over 1990–2024 relative to CEE peers with weaker competition and slower privatisation (Bulgaria, Romania, Croatia). The test is whether Poland outperforms a synthetic counterfactual or whether a panel treatment coefficient is positive and significant.
- Falsification rule: Refuted if the panel-FE coefficient on Poland × post-1990 is negative and significant at p<0.05, or if Poland’s cumulative log GDP-pc gap vs synthetic counterfactual is negative over 1990–2024.
- Falsification test: panel_fe_poland_transition
Estimate
- Error: treatment 'poland_post_1990' has no within-country variation under country fixed effects
Variables resolved
world_bank_wdi:NY.GDP.PCAP.KD→ real_gdp_pc (outcome, publisher=world_bank_wdi, n=12104)world_bank_wdi:SL.GDP.PCAP.EM.KD→ labour_productivity (outcome, publisher=world_bank_wdi, n=7444)pwt:rtfpna→ tfp_index (outcome, publisher=pwt, n=6407)constructed: 1 for POL from 1990 onward→ poland_post_1990 (treatment, publisher=constructed, n=385)world_bank_wdi:NY.GDP.PCAP.KD→ initial_gdp_pc_1990 (controls, publisher=world_bank_wdi, n=12104)constructed: 1 from 2004 for EU accession countries→ eu_membership_dummy (controls, publisher=constructed, n=385)world_bank_wdi:NE.TRD.GNFS.ZS→ trade_openness (controls, publisher=world_bank_wdi, n=10714)wgi:RL.EST→ wgi_rule_of_law (controls, publisher=wgi, n=5296)pwt:hc→ human_capital (controls, publisher=pwt, n=8637)
Generated by scripts/run_panel_fe.py at 2026-06-29T17:52:59+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.