Pre-registration
High-bite minimum wages (statutory floors that approach or exceed the local 50th percentile of the age-specific wage distribution) produce a multi-stage causal chain. FIRST-ORDER: wage floors do rise for employed workers who retain their jobs — this effect is real, measurable and acknowledged. SECOND-ORDER: employment rates for teens, young immigrants, low-skill entrants, and workers in high-bite sub-regions diverge negatively from synthetic controls, with hours reductions, reduced promotion-probability, and tradable-sector job reallocation away from affected regions. THIRD-ORDER: the productivity ladder that moves workers from first-job wages to wages well above the minimum breaks down; informal-sector employment share rises; the share of young people neither in employment nor education (NEET) increases persistently, entrenching long-run human-capital damage. Cases: Seattle 2015-2017 above-$13 hike, NYC fast-food $15 minimum 2019, California state-wide $15-to-$16 schedule, UK National Living Wage 2016-2024 schedule, German Mindestlohn 2015 introduction and 2022 €12 hike.
Falsification criterion — what would disprove this
This hypothesis is considered falsified if:
Not supported if, across the five labelled cases: (a) the p10 wage FIRST-ORDER effect is positive and significant (confirming the acknowledged success) AND (b) at least 3 of 5 cases show no statistically meaningful teen-E/P divergence (>1.0pp below synthetic control at p<0.10) AND (c) no case shows the NEET third-order persistence. If FIRST-ORDER is confirmed but SECOND-ORDER and THIRD-ORDER effects are null across the majority of cases, the causal-chain claim is refuted even though the first-order mechanism is intact. The minimum-wage-employment literature places prior at a moderate level: bite ratio is the decisive moderator.
formal test & threshold
test: staggered_did_five_case_causal_chain threshold: FIRST-ORDER (p10 wage) supported at p<0.05 AND SECOND-ORDER (teen E/P) divergence >=1.0pp in at least 3/5 cases at p<0.10 AND THIRD-ORDER (NEET or informal share) divergence >=0.5pp in at least 2/5 cases at p<0.10
Method
- Template
did_callaway_santanna- Fixed effects
region, year- Clustering
region- Sample
- 3 countries · 2000 – 2024
- Evidence type
- causal
Staggered Callaway-Sant'Anna DiD exploiting the timing variation in high-bite minimum-wage events (Seattle 2015, NYC FF 2019, CA $15 schedule 2017-2023, UK NLW 2016-2024 sub-schedule, DEU 2015 intro and 2022 €12 hike). Treated units are sub-regions where post-event bite ratio exceeds 0.50 of age-specific median. Donor pool is sub-regions with bite ratio remaining below 0.35 through the treatment window. Synthetic control as robustness per treated case.
Data
| Variable | Source | Transform |
|---|---|---|
teen_employment_to_population_ratio_high_bite outcome | bls:LAUtier 1 destatis:mikrozensustier 1 | level_pct |
low_skill_immigrant_employment_rate outcome | bls:CPStier 1 ons:APS (UK)tier 1 destatis:mikrozensustier 1 | level_pct |
neet_rate_15_24 outcome | oecd:NEETtier 2 | level_pct |
informal_sector_employment_share outcome | ilo:ILOSTATtier 2 | level_pct |
wage_at_10th_percentile outcome | bls:OEWStier 1 ons:ASHEtier 1 destatis:VSEtier 1 | log_real_hourly |
minimum_wage_bite_ratio treatment | constructed:statutory minimum / median wage in same region and age-group; inputs from bls:OEWS, ons:ASHE, destatis:VSEtier 5 | ratio |
regional_gdp_growth control | world_bank_wdi:NY.GDP.MKTP.KDtier 2 | yoy_pct_change |
adult_unemployment_rate control | bls:LAUST010000000000003tier 1 | level_pct |
sector_composition_share_tradable control | bls:QCEWtier 1 ons:BREStier 1 destatis:erwerbstaetigetier 1 | share |
● ready · ● pending · ● reconstruct-needed
Detailed result card
Result card — minimum_wage_above_median_employment_teen_effects
Verdict: INCONCLUSIVE_DATA_PENDING — minimum-wage data gate failed; missing state/subnational outcome/treatment panels
Pre-registration
- Claim: High-bite minimum wages (statutory floors that approach or exceed the local 50th percentile of the age-specific wage distribution) produce a multi-stage causal chain. FIRST-ORDER: wage floors do rise for employed workers who retain their jobs — this effect is real, measurable and acknowledged. SECOND-ORDER: employment rates for teens, young immigrants, low-skill entrants, and workers in high-bite sub-regions diverge negatively from synthetic controls, with hours reductions, reduced promotion-probability, and tradable-sector job reallocation away from affected regions. THIRD-ORDER: the productivity ladder that moves workers from first-job wages to wages well above the minimum breaks down; informal-sector employment share rises; the share of young people neither in employment nor education (NEET) increases persistently, entrenching long-run human-capital damage. Cases: Seattle 2015-2017 above-$13 hike, NYC fast-food $15 minimum 2019, California state-wide $15-to-$16 schedule, UK National Living Wage 2016-2024 schedule, German Mindestlohn 2015 introduction and 2022 €12 hike.
- Falsification rule: Not supported if, across the five labelled cases: (a) the p10 wage FIRST-ORDER effect is positive and significant (confirming the acknowledged success) AND (b) at least 3 of 5 cases show no statistically meaningful teen-E/P divergence (>1.0pp below synthetic control at p<0.10) AND (c) no case shows the NEET third-order persistence. If FIRST-ORDER is confirmed but SECOND-ORDER and THIRD-ORDER effects are null across the majority of cases, the causal-chain claim is refuted even though the first-order mechanism is intact. The minimum-wage-employment literature places prior at a moderate level: bite ratio is the decisive moderator.
Estimate (Callaway-Sant'Anna staggered DiD, TWFE approximation)
- Error: minimum-wage data gate failed; missing state/subnational outcome/treatment panels
Variables resolved
Missing data
bls:LAU_state_teen_employment_population_ratio_panel(outcome)bls:OEWS_state_p10_hourly_wage_panel(outcome)derived:minimum_wage_bite_ratio_subnational_panel(treatment)
Data repair note
- The preregistered minimum-wage design is state/subnational; national or single-state exemplar series are not compatible evidence.
- Required:
bls:LAU_state_teen_employment_population_ratio_panel— US state/city teen employment-to-population panel for high-bite cases, keyed by subnational unit and year. - Required:
bls:OEWS_state_p10_hourly_wage_panel— BLS OEWS state p10 hourly wage panel, paired with median wages so the first-order wage effect and bite ratio can be tested honestly. - Required:
derived:minimum_wage_bite_ratio_subnational_panel— Constructed statutory minimum / local age-specific median wage panel for Seattle, NYC fast-food, California, UK NLW regions, and German Mindestlohn cases. - Also needed for full verdict completeness: ons:ASHE_regional_p10_hourly_wage_panel and uk_low_pay_commission:NLW_history for UK regions.
- Also needed for full verdict completeness: destatis:VSE_kreis_p10_hourly_wage_panel and destatis:german_minimum_wage_history for German Kreise.
- Also needed for full verdict completeness: oecd:regional_neet_15_24_panel or national-statistical regional NEET panels for third-order persistence.
- Also needed for full verdict completeness: Subnational sector composition and adult unemployment controls keyed to the same unit-year frame.
- Not used as compatible evidence: world_bank_wdi:NY.GDP.MKTP.KD is only a national GDP control proxy; it cannot identify high-bite subregional treatment.
- Not used as compatible evidence: The current BLS vintages are national LNS/CES/CUUR extracts and do not include LAU/OEWS/QCEW subnational panels.
- Not used as compatible evidence: No ONS ASHE/APS/BRES or Destatis Mikrozensus/VSE subregional wage-employment vintages are on disk.
- Runner limitation: The five-case high-bite design is subnational and multi-country. The runner needs unit_id-level panel support before these fetched sources can be estimated without collapsing the design to country-year aggregates.
Generated by scripts/run_did_callaway_santanna.py at 2026-05-04T20:29:26+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
The causal chain is the payload: the hypothesis is methodologically honest about the first-order success (p10 wages rise for the employed) and stakes falsifiability on second/third-order divergence. A clean first-order success with null second/third-order effects would refute the chain claim.