{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "9432",
  "company_name": "NTT",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/9432/",
  "api_url": "/api/9432/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/9432/",
  "count": 9,
  "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": "ntt-docomo-ipo-1998",
      "url": "/tse/9432/decisions/ntt-docomo-ipo-1998/",
      "api_url": "/api/9432/decisions/ntt-docomo-ipo-1998.json",
      "year": 1998,
      "month": 10,
      "type": "capital",
      "tags": [
        "cp-listing",
        "cp-finance"
      ],
      "title": "NTTドコモの株式上場——稼ぎ頭を資金化しつつ過半出資で支配を残した資本政策",
      "subtitle": "支配か資本効率か——公取委の引き下げ指導の下、NTTはなぜドコモを上場させ、なお過半出資を手放さなかったか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "ntt-communications-intl-1999",
      "url": "/tse/9432/decisions/ntt-communications-intl-1999/",
      "api_url": "/api/9432/decisions/ntt-communications-intl-1999.json",
      "year": 1999,
      "month": 7,
      "type": "overseas",
      "tags": [
        "gl-entry",
        "cp-spinoff"
      ],
      "title": "NTTコミュニケーションズの設立と国際通信への進出",
      "subtitle": "完全民営の子会社で国際へ——IDC買収を見送り、宮津純一郎社長はなぜ自前路線を選んだか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "ntt-holdingization-1999",
      "url": "/tse/9432/decisions/ntt-holdingization-1999/",
      "api_url": "/api/9432/decisions/ntt-holdingization-1999.json",
      "year": 1999,
      "month": 2,
      "type": "reorganization",
      "tags": [
        "cp-holdings"
      ],
      "title": "民営化NTTの純粋持株会社体制への再編と地域・長距離の分社",
      "subtitle": "14年に及んだ分離・分割論議の果てに、宮津純一郎社長は一体経営をどう保ちながら公正競争の枠組みへ移したか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "ntt-ftth-broadband-2000",
      "url": "/tse/9432/decisions/ntt-ftth-broadband-2000/",
      "api_url": "/api/9432/decisions/ntt-ftth-broadband-2000.json",
      "year": 2000,
      "month": 12,
      "type": "restructuring",
      "tags": [
        "st-capex",
        "bm-digital"
      ],
      "title": "共用型πシステムを止め、各家庭へ光を直結するFTTHへ固定網を切り替えた基盤投資",
      "subtitle": "共用型か家庭直結か——ADSLに追われたNTT東西は、固定網の光化をどう選び直したか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "ntt-global-one-ntt-2019",
      "url": "/tse/9432/decisions/ntt-global-one-ntt-2019/",
      "api_url": "/api/9432/decisions/ntt-global-one-ntt-2019.json",
      "year": 2019,
      "month": null,
      "type": "overseas",
      "tags": [
        "gl-expansion",
        "bm-core-shift"
      ],
      "title": "海外システム構築事業の統合と「One NTT」体制の構築",
      "subtitle": "ドコモの海外投資が潰えたあと、NTTは新たな成長の軸をどこに求めたか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "ntt-docomo-2020",
      "url": "/tse/9432/decisions/ntt-docomo-2020/",
      "api_url": "/api/9432/decisions/ntt-docomo-2020.json",
      "year": 2020,
      "month": 9,
      "type": "acquisition",
      "tags": [
        "cp-delisting"
      ],
      "title": "NTTによるNTTドコモの完全子会社化と親子上場の解消（2020年成立）",
      "subtitle": "なぜNTTは約4.3兆円を投じ、上場子会社ドコモを再び完全に取り込んだのか？",
      "status": "completed",
      "status_label": "成立"
    },
    {
      "slug": "ntt-docomo-full-subsidiary-2020",
      "url": "/tse/9432/decisions/ntt-docomo-full-subsidiary-2020/",
      "api_url": "/api/9432/decisions/ntt-docomo-full-subsidiary-2020.json",
      "year": 2020,
      "month": 9,
      "type": "acquisition",
      "tags": [
        "cp-delisting"
      ],
      "title": "NTTドコモの完全子会社化——4.3兆円の国内最大TOBによる上場子会社の解消",
      "subtitle": "政府の値下げ圧力の下、澤田純社長はなぜ稼ぎ頭を4.3兆円で買い戻したか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "ntt-data-2025",
      "url": "/tse/9432/decisions/ntt-data-2025/",
      "api_url": "/api/9432/decisions/ntt-data-2025.json",
      "year": 2025,
      "month": 5,
      "type": "acquisition",
      "tags": [
        "cp-delisting"
      ],
      "title": "NTTによるNTTデータグループの完全子会社化と親子上場の解消（2025年成立）",
      "subtitle": "なぜNTTは約2.4兆円を投じて上場子会社NTTデータグループを完全子会社化したのか？",
      "status": "completed",
      "status_label": "成立"
    },
    {
      "slug": "ntt-data-full-subsidiary-2025",
      "url": "/tse/9432/decisions/ntt-data-full-subsidiary-2025/",
      "api_url": "/api/9432/decisions/ntt-data-full-subsidiary-2025.json",
      "year": 2025,
      "month": 5,
      "type": "acquisition",
      "tags": [
        "cp-delisting"
      ],
      "title": "NTTデータグループの完全子会社化によるグループ再結集",
      "subtitle": "四半世紀前に分けた事業会社を、島田明社長はなぜ持株会社の下へ再び集めたのか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "acquisition",
      "count": 4,
      "url": "/api/9432/decisions/by-type/acquisition.json"
    },
    {
      "key": "capital",
      "count": 1,
      "url": "/api/9432/decisions/by-type/capital.json"
    },
    {
      "key": "overseas",
      "count": 2,
      "url": "/api/9432/decisions/by-type/overseas.json"
    },
    {
      "key": "reorganization",
      "count": 1,
      "url": "/api/9432/decisions/by-type/reorganization.json"
    },
    {
      "key": "restructuring",
      "count": 1,
      "url": "/api/9432/decisions/by-type/restructuring.json"
    }
  ],
  "by_decade": [
    {
      "key": "1990s",
      "count": 3,
      "url": "/api/9432/decisions/by-decade/1990s.json"
    },
    {
      "key": "2000s",
      "count": 1,
      "url": "/api/9432/decisions/by-decade/2000s.json"
    },
    {
      "key": "2010s",
      "count": 1,
      "url": "/api/9432/decisions/by-decade/2010s.json"
    },
    {
      "key": "2020s",
      "count": 4,
      "url": "/api/9432/decisions/by-decade/2020s.json"
    }
  ]
}