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title: "Resource Constraints and the Criminal Justice System: Evidence from Judicial Vacancies"
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[Crystal S. Yang (2016)](https://doi.org/10.1257/pol.20150150). *American Economic Journal: Economic Policy*.

**Under development — community extension.** This is a provisional source-design assessment, not a new successful replication or a final eligibility ruling.

[Extension index](development.html) · [Provisional eligibility log](development.html#eligibility-log) · [Assessment JSON](aeraej-406.json) · [QMD](aeraej-406.qmd) · [Reproduction code](collection-code.zip)

## Source design and template applicability

Judicial-vacancy effects use judge deaths and pension-eligibility-based predicted vacancy spells in OLS/2SLS. Actual court-capacity exposure is fractional, and the required case-level outcome data are not deposited.

No DiD estimates, uncertainty intervals or homogeneity-test decision were computed in this tranche. No point is added to the calibration plots. This is not a zero effect or a failed statistical test.

## Recorded treatment-column measurement

**157 distinct nonmissing values** in `vacancytime`.

Vacancy duration in the public judicial-vacancy data; sentencing microdata are restricted. N=433; missing=0. Frame: vac. Source: AEJ-Policy/Yang_AEJ-Policy_2016_114641/R/406_yang_replicate.R.

These are the existing data-measured counts, not counts inferred from design labels. A binary instrument, group indicator or interaction component need not be the treatment of interest; the source-design assessment above takes precedence for template applicability.

## Replication status

**This tranche:** unsupported design; source code/documentation inspected, no estimator run.

**Supplied library:** unable_to_replicate; verification: no scalar DiD target; preparation: runs_with_shim. These are the library’s labels, not new verification claims. Missing data and unsupported designs are separate issues.

## Evidence and provenance

The following files in the supplied library were inspected. Their SHA-256 digests are recorded in the downloadable assessment JSON. Source archives and microdata are not redistributed.

- `AEJ-Policy/Yang_AEJ-Policy_2016_114641/R/406_yang_replicate.R` (188 lines)
- `AEJ-Policy/Yang_AEJ-Policy_2016_114641/aeraej-406.md` (288 lines)