Pre-registration
Precautionary-principle-based regulation in the EU produces a three-order causal chain relative to the US regulatory baseline. FIRST-ORDER: environmental, privacy, consumer-safety, and pharma- safety protections are codified and (largely) enforced — citizens receive measurable protection from harms targeted by each regulation (REACH substances registered; GDPR breach notifications required; AI Act high-risk systems audited; EMA pharma-safety signals maintained). This is an acknowledged policy success for citizens. SECOND-ORDER: compliance costs rise, especially for small and medium firms; EU single-market fragmentation persists because member states transpose differentially; product-launch timing in the EU lags the US. THIRD-ORDER: R&D investment and firm formation relocate (pharmaceutical product launches in US then EU; AI and biotech unicorn formation; venture funding per capita gap); EU-US productivity and per-capita income gap widens. Cases: GDPR 2018, REACH 2007-2018, AI Act 2024, EMA vs FDA drug approval timing, Digital Markets Act / Digital Services Act 2022- 2024.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
Not supported if, across the outcome set: (a) FIRST-ORDER protection delivery is confirmed at p<0.05 (acknowledged success) AND (b) once capital-market-depth, bankruptcy-regime, and high-skill immigration controls are included, the EU-vs-US DiD coefficient on firm-formation, R&D, VC, TFP becomes non-significant (p>0.10). If the productivity/firm-formation gap is fully absorbed by NON-regulatory controls, the chain claim is refuted even though the protections (1st-order) are delivered.
formal test & threshold
test: eu_us_did_with_non_regulatory_controls_causal_chain threshold: FIRST-ORDER citizen protection delivered AND RESIDUAL regulatory coefficient on at least 3 of 4 third-order outcomes (firm formation, R&D, VC, TFP) significant at p<0.05 AFTER controlling for capital-market depth, bankruptcy regime, and immigration
Method
- Template
did_callaway_santanna- Fixed effects
country, year- Clustering
country- Sample
- 9 countries · 1995 – 2024
- Evidence type
- causal
Primary: Callaway-Sant'Anna DiD across the GDPR May-2018 and REACH staged-registration events, with US as untreated counterfactual. Secondary: panel FE on cumulative regulatory- stock index against outcomes. The EU-vs-US comparison is the central identification; results must be reported with a capital-market-depth control that absorbs the non-regulatory contribution to the gap.
Data
| Variable | Source | Transform |
|---|---|---|
citizen_protection_proxy_gdpr_reach_ai_act outcome | constructed:data-breach notification rate (GDPR); REACH-registered substances count; AI Act high-risk audits; EMA pharmacovigilance tier 5 | index |
compliance_cost_index outcome | constructed:compliance-cost surveys from CEPS, Bruegel, EU Regulatory Fitness reports + CRA estimates for REACH and AI Acttier 5 | log_real_eur_per_firm |
product_launch_timing_eu_vs_us outcome | ema_fda_comparative:drug_approval_datestier 3 it_product:gdpr_feature_launch_gaptier 3 | days_lag |
unicorn_and_high_growth_firm_count outcome | cbinsights:unicorn_trackertier 3 pitchbook:VC_funded_firmstier 3 crunchbase:firm_registrytier 3 | count_per_million_population |
rd_investment_per_gdp outcome | eurostat:rd_e_gerdregtier 1 oecd:research_and_development_statisticstier 2 | pct_gdp |
productivity_level_tfp outcome | eu_klems:tfptier 3 bls:multifactor_productivitytier 1 | index_2005_100 |
venture_capital_per_capita outcome | invest_europe:venture_capital_statisticstier 3 nvca:venture_capital_monitor (US)tier 3 | log_real_usd_per_capita |
eu_precautionary_regulation_event treatment | constructed:event indicators (GDPR May-2018, REACH 2007 + registration deadlines 2010/2013/2018, AI Act adoption 2024, DMA/DSA 2023-tier 5 | indicator |
capital_market_depth control | imf:FSItier 2 world_bank_wdi:market_cap_to_gdptier 2 | pct_gdp |
bankruptcy_regime_stringency control | world_bank_wdi:doing_businesstier 2 oecd:business_dynamicstier 2 | index |
immigration_high_skill_share control | oecd:international_migration_outlooktier 2 | pct_of_labour_force |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — precautionary_regulation_innovation_productivity_gap_eu_us
Verdict: PARTIAL — ATT=+8.614e+04, p=0, N=260, treated_countries=1; claim direction ambiguous
Pre-registration
- Claim: Precautionary-principle-based regulation in the EU produces a three-order causal chain relative to the US regulatory baseline. FIRST-ORDER: environmental, privacy, consumer-safety, and pharma- safety protections are codified and (largely) enforced — citizens receive measurable protection from harms targeted by each regulation (REACH substances registered; GDPR breach notifications required; AI Act high-risk systems audited; EMA pharma-safety signals maintained). This is an acknowledged policy success for citizens. SECOND-ORDER: compliance costs rise, especially for small and medium firms; EU single-market fragmentation persists because member states transpose differentially; product-launch timing in the EU lags the US. THIRD-ORDER: R&D investment and firm formation relocate (pharmaceutical product launches in US then EU; AI and biotech unicorn formation; venture funding per capita gap); EU-US productivity and per-capita income gap widens. Cases: GDPR 2018, REACH 2007-2018, AI Act 2024, EMA vs FDA drug approval timing, Digital Markets Act / Digital Services Act 2022- 2024.
- Falsification rule: Not supported if, across the outcome set: (a) FIRST-ORDER protection delivery is confirmed at p<0.05 (acknowledged success) AND (b) once capital-market-depth, bankruptcy-regime, and high-skill immigration controls are included, the EU-vs-US DiD coefficient on firm-formation, R&D, VC, TFP becomes non-significant (p>0.10). If the productivity/firm-formation gap is fully absorbed by NON-regulatory controls, the chain claim is refuted even though the protections (1st-order) are delivered.
Estimate (Callaway-Sant'Anna staggered DiD, TWFE approximation)
- coefficient: 86139.30650244371
- std_error: 1362.1651273325301
- p_value: 0.0
- n_obs: 260
- n_countries: 9
- r_squared_within: 0.9548380912384111
- fe_entity: True
- fe_time: True
- cluster: country
- method: Callaway-Sant'Anna TWFE fallback (linearmodels failed: No module named 'linearmodels')
- n_treated_countries: 1
- cohort_years: [2018]
- dropped_controls_due_to_overlap: []
Variables resolved
eurostat:rd_e_gerdreg; oecd:research_and_development_statistics→ rd_investment_per_gdp (outcome, n=11871)
Missing data
constructed: data-breach notification rate (GDPR); REACH-registered substances count; AI Act high-risk audits; EMA pharmacovigilance signals(outcome)constructed: compliance-cost surveys from CEPS, Bruegel, EU Regulatory Fitness reports + CRA estimates for REACH and AI Act(outcome)ema_fda_comparative:drug_approval_dates (historical FDA-EMA lag studies, Tufts CSDD); it_product:gdpr_feature_launch_gap (Apple, Google, Meta feature rollout deltas)(outcome)cbinsights:unicorn_tracker; pitchbook:VC_funded_firms; crunchbase:firm_registry(outcome)eu_klems:tfp; us_bls:multifactor_productivity(outcome)invest_europe:venture_capital_statistics; nvca:venture_capital_monitor (US)(outcome)constructed: event indicators (GDPR May-2018, REACH 2007 + registration deadlines 2010/2013/2018, AI Act adoption 2024, DMA/DSA 2023-2024); EU-vs-US indicator as the cross-sectional treatment(treatment)imf:FSI; world_bank:market_cap_to_gdp(controls)world_bank:doing_business (historical); oecd:business_dynamics(controls)oecd:international_migration_outlook(controls)
Generated by scripts/run_did_callaway_santanna.py at 2026-04-30T13:28:09+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
Chain: protection delivered (1st) -> compliance cost + launch-lag (2nd) -> R&D, firm formation, VC, TFP gap (3rd). Falsification rests on whether residual regulatory coefficient survives non-regulatory controls.