{
  "index_name": "Climate Policy Coherence Index (CPCI)",
  "formula": "(C-F)/(C+F)",
  "range": [
    -1,
    1
  ],
  "variants": {
    "CPCI_energy_harmonized": {
      "period": "2015+",
      "C": "renewables + energy efficiency + explicit decarbonisation support from same DG ENER energy-subsidy universe",
      "F": "fossil energy subsidies from the same universe"
    },
    "CPCI_stateaid_long": {
      "period": "2000+",
      "C": "State Aid Scoreboard environmental protection/energy savings and later climate/net-zero categories",
      "F": "identified fossil/carbon-lock-in State aid lower bound from the same Scoreboard universe"
    },
    "CPCI_structural": {
      "period": "where classification permits",
      "C": "same as selected base variant",
      "F": "fossil continuation/lock-in measures, excluding closure/remediation and clearly temporary targeted crisis support"
    }
  },
  "rules": [
    "Never combine C and F from different statistical universes in one CPCI value.",
    "Always publish raw C and F beside the index.",
    "Keep temporary crisis and transition-exit measures separately visible.",
    "Automotive aid is classified by funded activity, not company sector label."
  ]
}