{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "3050",
  "company_name": "DCMホールディングス",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/3050/",
  "api_url": "/api/3050/decisions.json",
  "updated": "2026-09-04",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/3050/",
  "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). Entries flagged report_published: false expose everything except that narrative.",
  "decisions": [
    {
      "slug": "homecenter-pivot-1973",
      "url": "/tse/3050/decisions/homecenter-pivot-1973/",
      "api_url": "/api/3050/decisions/homecenter-pivot-1973.json",
      "year": 1973,
      "month": null,
      "type": "transformation",
      "tags": [
        "bm-core-shift",
        "st-lowcost"
      ],
      "title": "カーマによる176店舗のドラッグストアチェーン構想の撤回と、ホームセンターへの業態転換",
      "subtitle": "薬局の店数を積むか、住まいまわりの売場を作るか——出店を縛る規制の下での業態の選び直し",
      "status": "implemented"
    },
    {
      "slug": "hokkaido-logistics-system-1983",
      "url": "/tse/3050/decisions/hokkaido-logistics-system-1983/",
      "api_url": "/api/3050/decisions/hokkaido-logistics-system-1983.json",
      "year": 1983,
      "month": null,
      "type": "transformation",
      "tags": [
        "bm-digital",
        "pf-vertical",
        "st-capex"
      ],
      "title": "石黒商店によるIBMシステム38の導入と物流センターの設立",
      "subtitle": "問屋の条件を飲むか、補充の仕組みを自前で持つか——海を渡る仕入がもたらした増収減益への対応",
      "status": "implemented"
    },
    {
      "slug": "three-company-integration-2006",
      "url": "/tse/3050/decisions/three-company-integration-2006/",
      "api_url": "/api/3050/decisions/three-company-integration-2006.json",
      "year": 2006,
      "month": null,
      "type": "merger",
      "tags": [
        "ma-merger",
        "cp-holdings",
        "st-lowcost"
      ],
      "title": "カーマ・ダイキ・ホーマック3社の共同株式移転によるＤＣＭ Ｊａｐａｎホールディングスの設立",
      "subtitle": "商圏の重ならない3社は、なぜ合併ではなく共同持株会社を選んだか",
      "status": "implemented",
      "report_published": false
    },
    {
      "slug": "five-company-merger-2021",
      "url": "/tse/3050/decisions/five-company-merger-2021/",
      "api_url": "/api/3050/decisions/five-company-merger-2021.json",
      "year": 2021,
      "month": null,
      "type": "reorganization",
      "tags": [
        "cp-holdings",
        "ma-pmi",
        "st-brand"
      ],
      "title": "ホームセンター事業会社5社の吸収合併によるＤＣＭ株式会社の発足と、店名の「ＤＣＭ」への統一",
      "subtitle": "地域で親しまれた屋号を残すか、一つの会社に束ねるか——持株会社15年目に踏んだ法人格の統一",
      "status": "implemented",
      "report_published": false
    },
    {
      "slug": "keiyo-acquisition-2024",
      "url": "/tse/3050/decisions/keiyo-acquisition-2024/",
      "api_url": "/api/3050/decisions/keiyo-acquisition-2024.json",
      "year": 2024,
      "month": null,
      "type": "acquisition",
      "tags": [
        "ma-rollup",
        "ma-pmi",
        "cp-crossholding"
      ],
      "title": "持分法適用関連会社ケーヨーの完全子会社化と、ＤＣＭ株式会社への吸収合併",
      "subtitle": "仕入の9割を供給する相手を、提携先のまま置くか、一つの会社にするか",
      "status": "implemented"
    }
  ],
  "by_type": [
    {
      "key": "acquisition",
      "count": 1,
      "url": "/api/3050/decisions/by-type/acquisition.json"
    },
    {
      "key": "merger",
      "count": 1,
      "url": "/api/3050/decisions/by-type/merger.json"
    },
    {
      "key": "reorganization",
      "count": 1,
      "url": "/api/3050/decisions/by-type/reorganization.json"
    },
    {
      "key": "transformation",
      "count": 2,
      "url": "/api/3050/decisions/by-type/transformation.json"
    }
  ],
  "by_decade": [
    {
      "key": "1970s",
      "count": 1,
      "url": "/api/3050/decisions/by-decade/1970s.json"
    },
    {
      "key": "1980s",
      "count": 1,
      "url": "/api/3050/decisions/by-decade/1980s.json"
    },
    {
      "key": "2000s",
      "count": 1,
      "url": "/api/3050/decisions/by-decade/2000s.json"
    },
    {
      "key": "2020s",
      "count": 2,
      "url": "/api/3050/decisions/by-decade/2020s.json"
    }
  ]
}