Pre-registration
Across a broad panel of developing and emerging-market economies 1980-2020, price controls and directed input subsidies predict higher capital misallocation — measured by the dispersion of the marginal product of capital across firms or sectors — and lower long-run total-factor-productivity growth. The pre-registered claim is that a one-standard-deviation increase in a composite price-distortion index is associated with at least a 5% increase in the standard deviation of log-MPK and at least a 0.2-percentage-point reduction in annual TFP growth, after controlling for initial income, financial development, and state-capacity proxies.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
Not supported if (a) the panel-FE coefficient on price-distortion index is not positive and significant at p<0.05 on MPK dispersion, OR (b) the coefficient is not negative and significant at p<0.05 on TFP growth, OR (c) the implied effect of a one-SD increase in price distortion on MPK dispersion is below 2.5%. A developmentalist / infant-industry reading wins if price controls are negatively associated with MPK dispersion (suggesting that controls correct market failures and improve allocation) or positively associated with TFP growth.
formal test & threshold
test: panel_fe_price_distortion_on_misallocation_and_tfp threshold: panel_FE_beta(price_distortion → sd_log_mpk) > 0 at p<0.05 AND panel_FE_beta(price_distortion → tfp_growth_10yr) < 0 at p<0.05 AND implied_effect_per_1sd_price_distortion_on_mpk_dispersion >= 2.5%
Method
- Template
panel_fe- Fixed effects
country, year- Clustering
country- Sample
- 28 countries · 1980 – 2020
- Evidence type
- associational
Panel FE with 10-year forward-differenced TFP and contemporaneous misallocation measures on lagged price-distortion index. Robustness: cross-sectional long-difference using transition- economy price-liberalisation episodes (China 1978-1992, Vietnam Doi Moi, ex-USSR 1991-1995) as natural-experiment validation. Alternative misallocation measure: Hsieh-Klenow dispersion.
Data
| Variable | Source | Transform |
|---|---|---|
capital_misallocation_sd_log_mpk outcome | constructed:std_dev_log_mpk_from_industrial_censustier 5 | level |
tfp_growth_10yr outcome | pwt:rtfpnatier 3 | log_diff_10yr |
sectoral_labour_productivity_dispersion outcome | constructed:cv_log_va_per_workertier 5 | level |
price_distortion_index treatment | constructed:0.5×price_controls + 0.3×input_subsidies + 0.2×directed_credit_sharetier 5 | level |
fraser_price_controls_subindex treatment | fraser_efw:price_controlstier 4 | level |
fuel_subsidy_share_gdp treatment | world_bank_wdi:NY.GDP.MINR.RT.ZStier 2 | level |
log_initial_gdp_pc control | world_bank_wdi:NY.GDP.PCAP.KDtier 2 | log |
private_credit_share_gdp control | world_bank_wdi:FS.AST.PRVT.GD.ZStier 2 | level |
government_effectiveness control | wgi:GE.ESTtier 4 | level |
trade_openness control | world_bank_wdi:NE.TRD.GNFS.ZStier 2 | level |
human_capital_index control | pwt:hctier 3 | level |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — price_signal_distortion_capital_misallocation
Verdict: PARTIAL — coef=+0.008607, p=0.542 (above α=0.05); direction inconclusive
Pre-registration
- Claim: Across a broad panel of developing and emerging-market economies 1980-2020, price controls and directed input subsidies predict higher capital misallocation — measured by the dispersion of the marginal product of capital across firms or sectors — and lower long-run total-factor-productivity growth. The pre-registered claim is that a one-standard-deviation increase in a composite price-distortion index is associated with at least a 5% increase in the standard deviation of log-MPK and at least a 0.2-percentage-point reduction in annual TFP growth, after controlling for initial income, financial development, and state-capacity proxies.
- Falsification rule: Not supported if (a) the panel-FE coefficient on price-distortion index is not positive and significant at p<0.05 on MPK dispersion, OR (b) the coefficient is not negative and significant at p<0.05 on TFP growth, OR (c) the implied effect of a one-SD increase in price distortion on MPK dispersion is below 2.5%. A developmentalist / infant-industry reading wins if price controls are negatively associated with MPK dispersion (suggesting that controls correct market failures and improve allocation) or positively associated with TFP growth.
- Falsification test: panel_fe_price_distortion_on_misallocation_and_tfp
Estimate
- Method: linearmodels.PanelOLS
- Coefficient (treatment): +0.008607
- Std error: 0.0141
- p-value: 0.542
- Observations: 346, countries: 20
- Within R²: 0.535
- Fixed effects: entity=True, time=True
- Clustering: country
Variables resolved
pwt:rtfpna→ tfp_growth_10yr (outcome, publisher=pwt, n=6407)fraser_efw:price_controls→ fraser_price_controls_subindex (treatment, publisher=fraser_efw, n=4718)world_bank_wdi:NY.GDP.MINR.RT.ZS→ fuel_subsidy_share_gdp (treatment, publisher=world_bank_wdi, n=11536)world_bank_wdi:NY.GDP.PCAP.KD→ log_initial_gdp_pc (controls, publisher=world_bank_wdi, n=12104)world_bank_wdi:FS.AST.PRVT.GD.ZS→ private_credit_share_gdp (controls, publisher=world_bank_wdi, n=9562)wgi:GE.EST→ government_effectiveness (controls, publisher=wgi, n=5168)world_bank_wdi:NE.TRD.GNFS.ZS→ trade_openness (controls, publisher=world_bank_wdi, n=10714)pwt:hc→ human_capital_index (controls, publisher=pwt, n=8637)
Variables missing data
constructed: std_dev_log_mpk_from_industrial_census(outcome, name=capital_misallocation_sd_log_mpk) — vintage not on diskconstructed: cv_log_va_per_worker(outcome, name=sectoral_labour_productivity_dispersion) — vintage not on diskconstructed: 0.5×price_controls + 0.3×input_subsidies + 0.2×directed_credit_share(treatment, name=price_distortion_index) — vintage not on disk
Generated by scripts/run_panel_fe.py at 2026-06-29T17:54:33+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
MPK dispersion data is scarce and patchy. Primary source is WB Enterprise Surveys (cross-sectional, not panel). Sectoral productivity dispersion from UNIDO INDSTAT is a lower-quality alternative. This is the main data dependency flagged for this hypothesis.