{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "9020",
  "company_name": "東日本旅客鉄道",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/9020/",
  "api_url": "/api/9020/decisions.json",
  "updated": "2026-08-05",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9020/",
  "count": 5,
  "description": "Index of this company's management decisions. One decision = one endpoint: follow api_url for the full dossier (background, the decision itself, outcome, quoted primary sources and references).",
  "decisions": [
    {
      "slug": "ekinaka-lifestyle-business-1990",
      "url": "/tse/9020/decisions/ekinaka-lifestyle-business-1990/",
      "api_url": "/api/9020/decisions/ekinaka-lifestyle-business-1990.json",
      "year": 1990,
      "month": null,
      "type": "new_business",
      "tags": [
        "pf-diversify-related"
      ],
      "title": "駅ナカ・生活サービス事業による鉄道外収益の柱化",
      "subtitle": "直営百貨店の夢が潰えた後、JR東日本は駅という空間資産をどう鉄道外収益の柱に変えたか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "suica-launch-2001",
      "url": "/tse/9020/decisions/suica-launch-2001/",
      "api_url": "/api/9020/decisions/suica-launch-2001.json",
      "year": 2001,
      "month": 11,
      "type": "new_business",
      "tags": [
        "bm-digital",
        "st-platform",
        "pf-diversify-related"
      ],
      "title": "Suicaの全面導入と、交通ICから電子マネー・生活決済への拡張",
      "subtitle": "改札機の非接触ICを、なぜ街ナカの決済と生活サービスの基盤へ広げたのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "full-privatization-2002",
      "url": "/tse/9020/decisions/full-privatization-2002/",
      "api_url": "/api/9020/decisions/full-privatization-2002.json",
      "year": 2002,
      "month": null,
      "type": "governance",
      "tags": [
        "完全民営化",
        "国鉄改革",
        "政府保有株"
      ],
      "title": "三段に分けた株式売却と、JR会社法からの離脱",
      "subtitle": "なぜ十五年をかけて政府保有株を手放し、認可の要らない会社になろうとしたのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "two-axis-management-2021",
      "url": "/tse/9020/decisions/two-axis-management-2021/",
      "api_url": "/api/9020/decisions/two-axis-management-2021.json",
      "year": 2021,
      "month": null,
      "type": "restructuring",
      "tags": [
        "感染症",
        "事業構造改革",
        "二軸経営"
      ],
      "title": "二期で六千七百億円を失った後の、二軸経営への組み替え",
      "subtitle": "鉄道収入が四割消えたとき、なぜ元へ戻すのではなく組織を作り替えたのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "takanawa-gateway-city-2025",
      "url": "/tse/9020/decisions/takanawa-gateway-city-2025/",
      "api_url": "/api/9020/decisions/takanawa-gateway-city-2025.json",
      "year": 2025,
      "month": 3,
      "type": "new_business",
      "tags": [
        "st-capex",
        "pf-diversify-related"
      ],
      "title": "高輪ゲートウェイシティ──品川車両基地跡地の再開発と不動産第3の柱",
      "subtitle": "駅の上空と高架下しか自由にできなかった鉄道会社は、都心の車両基地跡地をどう第3の柱へ変えようとしたか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "governance",
      "count": 1,
      "url": "/api/9020/decisions/by-type/governance.json"
    },
    {
      "key": "new_business",
      "count": 3,
      "url": "/api/9020/decisions/by-type/new_business.json"
    },
    {
      "key": "restructuring",
      "count": 1,
      "url": "/api/9020/decisions/by-type/restructuring.json"
    }
  ],
  "by_decade": [
    {
      "key": "1990s",
      "count": 1,
      "url": "/api/9020/decisions/by-decade/1990s.json"
    },
    {
      "key": "2000s",
      "count": 2,
      "url": "/api/9020/decisions/by-decade/2000s.json"
    },
    {
      "key": "2020s",
      "count": 2,
      "url": "/api/9020/decisions/by-decade/2020s.json"
    }
  ]
}