IESET.
Hypotheses·housing·parking_minimum_abolition_housing_cost

Abolishing parking minimums near transit predicts lower per-unit construction costs and faster multifamily permitting.

INCONCLUSIVEengine/runs/parking_minimum_abolition_housing_cost

INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['world_bank_wdi:IC.CNST.PRMT']

confidence cueResult card produced; verdict unclassified.

policy briefCoverage too thin

In ordinary language

Does the housing rule being tested make homes easier to build, rent, or afford, or does it quietly reduce supply and push costs elsewhere?

plain answer

This test cannot make a firm call yet. no outcome variable loaded; missing: ['world_bank_wdi:IC.CNST.PRMT']

why it matters

Housing policy affects rents, mobility, household budgets, and construction. The test looks for measurable effects rather than relying on slogans.

how the test works

It compares 30 country or place units from 2000 to 2023, using a panel fe design, with fixed effects for country and year.

what was measured
What changed
  • Policy or institution proxy
What we checked
  • Primary sectoral outcome
what this does not prove

A single test is not the whole truth. It narrows the claim under a specific sample, time period, and method. Strong policy conclusions need the pattern to survive nearby tests, alternative data, and serious objections.

verification

No evidence packet has been generated yet.

Results

engine/runs/parking_minimum_abolition_housing_cost
1007550250200020122023USAGBRCANAUSNZLDEUFRA
illustrative sketch · run pending
No coefficients yet. When the model fires, this chart will show primary_sectoral_outcome across 30 sampled countries over 2000–2023.
The shapes above are stylised — none of the lines are real data.
Placeholder for parking_minimum_abolition_housing_cost. Published chart will be generated from engine/runs/parking_minimum_abolition_housing_cost/chart_data.json.

Pre-registration

registration ordering unverified
first-spec commit 4c8ce8e · 2026-07-18T22:11:21Z
run generated · 2026-06-29T17:53:15Z
Run timestamp predates this path's first git-add commit (rebase, rename, or pre-git local run). Spec hash is still the path's first-add commit — not repository HEAD — but ordering is not a clean pre-registration proof.

Abolishing parking minimums near transit predicts lower per-unit construction costs and faster multifamily permitting.

Falsification criterion — what would disprove this

set before the run · honoured after

This hypothesis is considered falsified if:

SUPPORTED if the treatment coefficient has the predicted sign at p<0.10. REFUTED if the opposite sign is significant at p<0.10. Otherwise PARTIAL.

formal test & threshold
test:      panel_fe_parking_minimum_abolition_housing_cost
threshold: p<0.10 with pre-registered sign

Method

Template
panel_fe
Fixed effects
country, year
Clustering
country
Sample
30 countries · 2000 – 2023
Evidence type
associational

Proxy-first TWFE screen; upgrade to bespoke replication when exact sector datasets are fetched.

Data

VariableSourceTransform
primary_sectoral_outcome
outcome
world_bank_wdi:IC.CNST.PRMTtier 2
level_or_growth_proxy
policy_or_institution_proxy
treatment
constructed:1 for NZL from 2020 onward; USA from 2017 onward; GBR from 2001 onwardtier 5
indicator_or_level
log_gdp_pc
control
world_bank_wdi:NY.GDP.PCAP.KDtier 2
log
rule_of_law
control
wgi:RL.ESTtier 4
level

● ready  · ● pending  · ● reconstruct-needed

Detailed result card

Result card — parking_minimum_abolition_housing_cost

Verdict: INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['world_bank_wdi:IC.CNST.PRMT']

Pre-registration

  • Claim: Abolishing parking minimums near transit predicts lower per-unit construction costs and faster multifamily permitting.
  • Falsification rule: SUPPORTED if the treatment coefficient has the predicted sign at p<0.10. REFUTED if the opposite sign is significant at p<0.10. Otherwise PARTIAL.
  • Falsification test: panel_fe_parking_minimum_abolition_housing_cost

Estimate

  • Error: no outcome variable loaded; missing: ['world_bank_wdi:IC.CNST.PRMT']

Variables resolved

  • constructed: 1 for NZL from 2020 onward; USA from 2017 onward; GBR from 2001 onward → policy_or_institution_proxy (treatment, publisher=constructed, n=720)
  • world_bank_wdi:NY.GDP.PCAP.KD → log_gdp_pc (controls, publisher=world_bank_wdi, n=12104)
  • wgi:RL.EST → rule_of_law (controls, publisher=wgi, n=5296)

Variables missing data

  • world_bank_wdi:IC.CNST.PRMT (outcome, name=primary_sectoral_outcome) — vintage not on disk

Generated by scripts/run_panel_fe.py at 2026-06-29T17:53:15+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.

Authored framework. Read the transparency note.