{
  "schema_version": 1,
  "index": "EMI",
  "snapshots": [
    {
      "schema_version": 1,
      "identifier": "powertotals-emi-2026-01",
      "name": "Electrical Materials Index",
      "short_name": "EMI",
      "description": "A monthly composite of published US electrical material, equipment, and construction wage series.",
      "period": "2026-01",
      "base_period": "2026-01",
      "base_value": 100,
      "value": 100,
      "month_over_month_change": null,
      "change_from_base": 0,
      "published_at": "2026-08-15T14:13:41.166Z",
      "degraded": true,
      "missing_weight": 0.15,
      "missing_components": [
        {
          "id": "electrical-equipment",
          "label": "Electrical equipment manufacturing",
          "series_id": "PCU3353 3353",
          "weight": 0.15,
          "critical": false,
          "missing_since": "2026-08-15",
          "candidate": {
            "series_id": "PCU33533353",
            "title": "Producer Price Index by Industry: Electrical Equipment Manufacturing",
            "reason": "Exact live FRED catalog title match; operator confirmation required before activation."
          }
        }
      ],
      "degradation_notice": "Published with available components reweighted proportionally. Missing since Electrical equipment manufacturing: 2026-08-15.",
      "revision_note": null,
      "source_revisions": [],
      "formula": "35% × Copper wire and cable + 15% × Steel mill products + 20% × Transformer manufacturing + 15% × Electrical equipment manufacturing + 15% × Construction average hourly wage",
      "components": {
        "copper-wire": {
          "label": "Copper wire and cable",
          "series_id": "WPU10260314",
          "source": "bls-api",
          "configured_weight": 0.35,
          "effective_weight": 0.411765,
          "base_value": 530.917,
          "current_value": 530.917,
          "normalized_value": 100
        },
        "steel": {
          "label": "Steel mill products",
          "series_id": "WPU1017",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 315.369,
          "current_value": 315.369,
          "normalized_value": 100
        },
        "transformers": {
          "label": "Transformer manufacturing",
          "series_id": "PCU335311335311",
          "source": "bls-api",
          "configured_weight": 0.2,
          "effective_weight": 0.235294,
          "base_value": 455.931,
          "current_value": 455.931,
          "normalized_value": 100
        },
        "construction-wage": {
          "label": "Construction average hourly wage",
          "series_id": "CES2000000003",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 40.53,
          "current_value": 40.53,
          "normalized_value": 100
        }
      },
      "license": "https://creativecommons.org/licenses/by/4.0/"
    },
    {
      "schema_version": 1,
      "identifier": "powertotals-emi-2026-02",
      "name": "Electrical Materials Index",
      "short_name": "EMI",
      "description": "A monthly composite of published US electrical material, equipment, and construction wage series.",
      "period": "2026-02",
      "base_period": "2026-01",
      "base_value": 100,
      "value": 101.16,
      "month_over_month_change": 1.16,
      "change_from_base": 1.16,
      "published_at": "2026-08-15T14:13:41.166Z",
      "degraded": true,
      "missing_weight": 0.15,
      "missing_components": [
        {
          "id": "electrical-equipment",
          "label": "Electrical equipment manufacturing",
          "series_id": "PCU3353 3353",
          "weight": 0.15,
          "critical": false,
          "missing_since": "2026-08-15",
          "candidate": {
            "series_id": "PCU33533353",
            "title": "Producer Price Index by Industry: Electrical Equipment Manufacturing",
            "reason": "Exact live FRED catalog title match; operator confirmation required before activation."
          }
        }
      ],
      "degradation_notice": "Published with available components reweighted proportionally. Missing since Electrical equipment manufacturing: 2026-08-15.",
      "revision_note": null,
      "source_revisions": [],
      "formula": "35% × Copper wire and cable + 15% × Steel mill products + 20% × Transformer manufacturing + 15% × Electrical equipment manufacturing + 15% × Construction average hourly wage",
      "components": {
        "copper-wire": {
          "label": "Copper wire and cable",
          "series_id": "WPU10260314",
          "source": "bls-api",
          "configured_weight": 0.35,
          "effective_weight": 0.411765,
          "base_value": 530.917,
          "current_value": 537.87,
          "normalized_value": 101.31
        },
        "steel": {
          "label": "Steel mill products",
          "series_id": "WPU1017",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 315.369,
          "current_value": 325.105,
          "normalized_value": 103.087
        },
        "transformers": {
          "label": "Transformer manufacturing",
          "series_id": "PCU335311335311",
          "source": "bls-api",
          "configured_weight": 0.2,
          "effective_weight": 0.235294,
          "base_value": 455.931,
          "current_value": 455.996,
          "normalized_value": 100.014
        },
        "construction-wage": {
          "label": "Construction average hourly wage",
          "series_id": "CES2000000003",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 40.53,
          "current_value": 40.7,
          "normalized_value": 100.419
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      },
      "license": "https://creativecommons.org/licenses/by/4.0/"
    },
    {
      "schema_version": 1,
      "identifier": "powertotals-emi-2026-03",
      "name": "Electrical Materials Index",
      "short_name": "EMI",
      "description": "A monthly composite of published US electrical material, equipment, and construction wage series.",
      "period": "2026-03",
      "base_period": "2026-01",
      "base_value": 100,
      "value": 101.52,
      "month_over_month_change": 0.36,
      "change_from_base": 1.52,
      "published_at": "2026-08-15T14:13:41.166Z",
      "degraded": true,
      "missing_weight": 0.15,
      "missing_components": [
        {
          "id": "electrical-equipment",
          "label": "Electrical equipment manufacturing",
          "series_id": "PCU3353 3353",
          "weight": 0.15,
          "critical": false,
          "missing_since": "2026-08-15",
          "candidate": {
            "series_id": "PCU33533353",
            "title": "Producer Price Index by Industry: Electrical Equipment Manufacturing",
            "reason": "Exact live FRED catalog title match; operator confirmation required before activation."
          }
        }
      ],
      "degradation_notice": "Published with available components reweighted proportionally. Missing since Electrical equipment manufacturing: 2026-08-15.",
      "revision_note": null,
      "source_revisions": [],
      "formula": "35% × Copper wire and cable + 15% × Steel mill products + 20% × Transformer manufacturing + 15% × Electrical equipment manufacturing + 15% × Construction average hourly wage",
      "components": {
        "copper-wire": {
          "label": "Copper wire and cable",
          "series_id": "WPU10260314",
          "source": "bls-api",
          "configured_weight": 0.35,
          "effective_weight": 0.411765,
          "base_value": 530.917,
          "current_value": 536.77,
          "normalized_value": 101.102
        },
        "steel": {
          "label": "Steel mill products",
          "series_id": "WPU1017",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 315.369,
          "current_value": 331.357,
          "normalized_value": 105.07
        },
        "transformers": {
          "label": "Transformer manufacturing",
          "series_id": "PCU335311335311",
          "source": "bls-api",
          "configured_weight": 0.2,
          "effective_weight": 0.235294,
          "base_value": 455.931,
          "current_value": 455.996,
          "normalized_value": 100.014
        },
        "construction-wage": {
          "label": "Construction average hourly wage",
          "series_id": "CES2000000003",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 40.53,
          "current_value": 40.92,
          "normalized_value": 100.962
        }
      },
      "license": "https://creativecommons.org/licenses/by/4.0/"
    },
    {
      "schema_version": 1,
      "identifier": "powertotals-emi-2026-04",
      "name": "Electrical Materials Index",
      "short_name": "EMI",
      "description": "A monthly composite of published US electrical material, equipment, and construction wage series.",
      "period": "2026-04",
      "base_period": "2026-01",
      "base_value": 100,
      "value": 101.81,
      "month_over_month_change": 0.29,
      "change_from_base": 1.81,
      "published_at": "2026-08-15T14:13:41.166Z",
      "degraded": true,
      "missing_weight": 0.15,
      "missing_components": [
        {
          "id": "electrical-equipment",
          "label": "Electrical equipment manufacturing",
          "series_id": "PCU3353 3353",
          "weight": 0.15,
          "critical": false,
          "missing_since": "2026-08-15",
          "candidate": {
            "series_id": "PCU33533353",
            "title": "Producer Price Index by Industry: Electrical Equipment Manufacturing",
            "reason": "Exact live FRED catalog title match; operator confirmation required before activation."
          }
        }
      ],
      "degradation_notice": "Published with available components reweighted proportionally. Missing since Electrical equipment manufacturing: 2026-08-15.",
      "revision_note": null,
      "source_revisions": [],
      "formula": "35% × Copper wire and cable + 15% × Steel mill products + 20% × Transformer manufacturing + 15% × Electrical equipment manufacturing + 15% × Construction average hourly wage",
      "components": {
        "copper-wire": {
          "label": "Copper wire and cable",
          "series_id": "WPU10260314",
          "source": "bls-api",
          "configured_weight": 0.35,
          "effective_weight": 0.411765,
          "base_value": 530.917,
          "current_value": 533.808,
          "normalized_value": 100.545
        },
        "steel": {
          "label": "Steel mill products",
          "series_id": "WPU1017",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 315.369,
          "current_value": 341.495,
          "normalized_value": 108.284
        },
        "transformers": {
          "label": "Transformer manufacturing",
          "series_id": "PCU335311335311",
          "source": "bls-api",
          "configured_weight": 0.2,
          "effective_weight": 0.235294,
          "base_value": 455.931,
          "current_value": 454.338,
          "normalized_value": 99.651
        },
        "construction-wage": {
          "label": "Construction average hourly wage",
          "series_id": "CES2000000003",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 40.53,
          "current_value": 41.01,
          "normalized_value": 101.184
        }
      },
      "license": "https://creativecommons.org/licenses/by/4.0/"
    },
    {
      "schema_version": 1,
      "identifier": "powertotals-emi-2026-05",
      "name": "Electrical Materials Index",
      "short_name": "EMI",
      "description": "A monthly composite of published US electrical material, equipment, and construction wage series.",
      "period": "2026-05",
      "base_period": "2026-01",
      "base_value": 100,
      "value": 104.9,
      "month_over_month_change": 3.09,
      "change_from_base": 4.9,
      "published_at": "2026-08-15T14:13:41.166Z",
      "degraded": true,
      "missing_weight": 0.15,
      "missing_components": [
        {
          "id": "electrical-equipment",
          "label": "Electrical equipment manufacturing",
          "series_id": "PCU3353 3353",
          "weight": 0.15,
          "critical": false,
          "missing_since": "2026-08-15",
          "candidate": {
            "series_id": "PCU33533353",
            "title": "Producer Price Index by Industry: Electrical Equipment Manufacturing",
            "reason": "Exact live FRED catalog title match; operator confirmation required before activation."
          }
        }
      ],
      "degradation_notice": "Published with available components reweighted proportionally. Missing since Electrical equipment manufacturing: 2026-08-15.",
      "revision_note": null,
      "source_revisions": [],
      "formula": "35% × Copper wire and cable + 15% × Steel mill products + 20% × Transformer manufacturing + 15% × Electrical equipment manufacturing + 15% × Construction average hourly wage",
      "components": {
        "copper-wire": {
          "label": "Copper wire and cable",
          "series_id": "WPU10260314",
          "source": "bls-api",
          "configured_weight": 0.35,
          "effective_weight": 0.411765,
          "base_value": 530.917,
          "current_value": 564.877,
          "normalized_value": 106.396
        },
        "steel": {
          "label": "Steel mill products",
          "series_id": "WPU1017",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 315.369,
          "current_value": 349.922,
          "normalized_value": 110.956
        },
        "transformers": {
          "label": "Transformer manufacturing",
          "series_id": "PCU335311335311",
          "source": "bls-api",
          "configured_weight": 0.2,
          "effective_weight": 0.235294,
          "base_value": 455.931,
          "current_value": 456.602,
          "normalized_value": 100.147
        },
        "construction-wage": {
          "label": "Construction average hourly wage",
          "series_id": "CES2000000003",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 40.53,
          "current_value": 41.21,
          "normalized_value": 101.678
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      },
      "license": "https://creativecommons.org/licenses/by/4.0/"
    },
    {
      "schema_version": 1,
      "identifier": "powertotals-emi-2026-06",
      "name": "Electrical Materials Index",
      "short_name": "EMI",
      "description": "A monthly composite of published US electrical material, equipment, and construction wage series.",
      "period": "2026-06",
      "base_period": "2026-01",
      "base_value": 100,
      "value": 106.48,
      "month_over_month_change": 1.58,
      "change_from_base": 6.48,
      "published_at": "2026-08-15T14:13:41.166Z",
      "degraded": true,
      "missing_weight": 0.15,
      "missing_components": [
        {
          "id": "electrical-equipment",
          "label": "Electrical equipment manufacturing",
          "series_id": "PCU3353 3353",
          "weight": 0.15,
          "critical": false,
          "missing_since": "2026-08-15",
          "candidate": {
            "series_id": "PCU33533353",
            "title": "Producer Price Index by Industry: Electrical Equipment Manufacturing",
            "reason": "Exact live FRED catalog title match; operator confirmation required before activation."
          }
        }
      ],
      "degradation_notice": "Published with available components reweighted proportionally. Missing since Electrical equipment manufacturing: 2026-08-15.",
      "revision_note": null,
      "source_revisions": [],
      "formula": "35% × Copper wire and cable + 15% × Steel mill products + 20% × Transformer manufacturing + 15% × Electrical equipment manufacturing + 15% × Construction average hourly wage",
      "components": {
        "copper-wire": {
          "label": "Copper wire and cable",
          "series_id": "WPU10260314",
          "source": "bls-api",
          "configured_weight": 0.35,
          "effective_weight": 0.411765,
          "base_value": 530.917,
          "current_value": 577.166,
          "normalized_value": 108.711
        },
        "steel": {
          "label": "Steel mill products",
          "series_id": "WPU1017",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 315.369,
          "current_value": 360.073,
          "normalized_value": 114.175
        },
        "transformers": {
          "label": "Transformer manufacturing",
          "series_id": "PCU335311335311",
          "source": "bls-api",
          "configured_weight": 0.2,
          "effective_weight": 0.235294,
          "base_value": 455.931,
          "current_value": 456.602,
          "normalized_value": 100.147
        },
        "construction-wage": {
          "label": "Construction average hourly wage",
          "series_id": "CES2000000003",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 40.53,
          "current_value": 41.36,
          "normalized_value": 102.048
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      },
      "license": "https://creativecommons.org/licenses/by/4.0/"
    },
    {
      "schema_version": 1,
      "identifier": "powertotals-emi-2026-07",
      "name": "Electrical Materials Index",
      "short_name": "EMI",
      "description": "A monthly composite of published US electrical material, equipment, and construction wage series.",
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      "base_period": "2026-01",
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      "month_over_month_change": 1.86,
      "change_from_base": 8.34,
      "published_at": "2026-08-15T14:13:41.166Z",
      "degraded": true,
      "missing_weight": 0.15,
      "missing_components": [
        {
          "id": "electrical-equipment",
          "label": "Electrical equipment manufacturing",
          "series_id": "PCU3353 3353",
          "weight": 0.15,
          "critical": false,
          "missing_since": "2026-08-15",
          "candidate": {
            "series_id": "PCU33533353",
            "title": "Producer Price Index by Industry: Electrical Equipment Manufacturing",
            "reason": "Exact live FRED catalog title match; operator confirmation required before activation."
          }
        }
      ],
      "degradation_notice": "Published with available components reweighted proportionally. Missing since Electrical equipment manufacturing: 2026-08-15.",
      "revision_note": null,
      "source_revisions": [],
      "formula": "35% × Copper wire and cable + 15% × Steel mill products + 20% × Transformer manufacturing + 15% × Electrical equipment manufacturing + 15% × Construction average hourly wage",
      "components": {
        "copper-wire": {
          "label": "Copper wire and cable",
          "series_id": "WPU10260314",
          "source": "bls-api",
          "configured_weight": 0.35,
          "effective_weight": 0.411765,
          "base_value": 530.917,
          "current_value": 578.187,
          "normalized_value": 108.903
        },
        "steel": {
          "label": "Steel mill products",
          "series_id": "WPU1017",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 315.369,
          "current_value": 374.203,
          "normalized_value": 118.656
        },
        "transformers": {
          "label": "Transformer manufacturing",
          "series_id": "PCU335311335311",
          "source": "bls-api",
          "configured_weight": 0.2,
          "effective_weight": 0.235294,
          "base_value": 455.931,
          "current_value": 474.83,
          "normalized_value": 104.145
        },
        "construction-wage": {
          "label": "Construction average hourly wage",
          "series_id": "CES2000000003",
          "source": "bls-api",
          "configured_weight": 0.15,
          "effective_weight": 0.176471,
          "base_value": 40.53,
          "current_value": 41.46,
          "normalized_value": 102.295
        }
      },
      "license": "https://creativecommons.org/licenses/by/4.0/"
    }
  ]
}