{
  "series_id": "BLUE_COLLAR_YIELD",
  "source": "derived",
  "shortName": "Yield - Blue Collar",
  "updateFrequency": "monthly",
  "unit": "ratio",
  "derivation": {
    "type": "ratio",
    "numerator": "BLUE_COLLAR_HIRES",
    "denominator": "BLUE_COLLAR_OPENINGS",
    "description": "Blue Collar Hires / Openings"
  }
}