{
  "paper": {
    "rank": 43,
    "paper_id": "aeraej-134",
    "title": "The Effect of Immigration Restrictions on Local Labor Markets: Lessons from the 1920s Border Closure",
    "authors": "Ran Abramitzky; Philipp Ager; Leah Boustan; Elior Cohen; Casper W. Hansen",
    "year": 2022,
    "journal": "American Economic Journal: Applied Economics",
    "doi": "10.1257/app.20200807",
    "package_bytes": 140868013,
    "source_specification": "Table 1",
    "selection_stratum": "did_continuous"
  },
  "mapping": {
    "paper_id": "aeraej-134",
    "assessment_status": "unsupported_design",
    "unsupported": "The source QE2Xpost multiplies continuous quota exposure by the 1930 period indicator, with region-period and baseline-immigrant-share controls. Binary recoding would change the border-closure exposure estimand."
  },
  "status": "unsupported_design",
  "reason": "The source QE2Xpost multiplies continuous quota exposure by the 1930 period indicator, with region-period and baseline-immigrant-share controls. Binary recoding would change the border-closure exposure estimand."
}