{
  "datasetId": "yugalinks/import-export-concentration-risk-series-v1",
  "format": "Parquet",
  "description": "A yearly view of country trade concentration by scope, including the Herfindahl-Hirschman Index (HHI), largest-share measures, and a concentration-risk score.",
  "columns": [
    "year",
    "country_iso3",
    "scope",
    "hhi",
    "top1_share_pct",
    "top3_share_pct",
    "concentration_risk_score"
  ],
  "columnTypes": {
    "year": "uint16",
    "country_iso3": "string",
    "scope": "string",
    "hhi": "float64",
    "top1_share_pct": "float64",
    "top3_share_pct": "float64",
    "concentration_risk_score": "float64"
  },
  "coverage": "1995-2024 annual observations where available",
  "rowMeaning": "one country, year, and concentration scope",
  "includes": [
    "Partner or product concentration scope",
    "HHI and top-one/top-three shares",
    "Concentration-risk score"
  ],
  "metricDefinitions": [
    "HHI summarizes concentration; higher values indicate activity is concentrated among fewer participants.",
    "Values ending in pct are percentages.",
    "Country fields ending in ISO3 use three-letter ISO 3166-1 country codes."
  ],
  "source": [
    "OECD BIMTS HS2017-6D"
  ]
}