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title: "Making Yourself Attractive: Pre-Marital Investments and the Returns to Education in the Marriage Market"
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[Jeanne Lafortune (2013)](https://doi.org/10.1257/app.5.2.151). *American Economic Journal: Applied Economics*.

**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-439.json) · [QMD](aeraej-439.qmd) · [Reproduction code](collection-code.zip)

## Source design and template applicability

Marriage-market exposures are instrumented with predicted immigrant shares and sex ratios. Fixed effects and first-stage regressions do not provide a binary-adoption DiD target.

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

**Data unavailable.**

The required census marriage-market analysis input is absent; provided immigration-share and comparison files do not contain the focal sex-ratio analysis sample.

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:** verified; verification: verified; preparation: needs_helper_files. 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-Applied/Lafortune_AEJ-Applied_2013_113848/R/439_lafortune_replicate.R` (200 lines)
- `AEJ-Applied/Lafortune_AEJ-Applied_2013_113848/aeraej-439.md` (98 lines)