{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "4385",
  "company_name": "メルカリ",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/4385/",
  "api_url": "/api/4385/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/4385/",
  "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": "mercari-founding-2013",
      "url": "/tse/4385/decisions/mercari-founding-2013/",
      "api_url": "/api/4385/decisions/mercari-founding-2013.json",
      "year": 2013,
      "month": 7,
      "type": "founding",
      "tags": [
        "st-platform"
      ],
      "title": "スマホ前提のCtoCを「即決価格」で再定義したメルカリの創業",
      "subtitle": "ウノウを売却した山田進太郎社長は、なぜオークションではなく「フリマ」を選んだのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "mass-marketing-2014",
      "url": "/tse/4385/decisions/mass-marketing-2014/",
      "api_url": "/api/4385/decisions/mass-marketing-2014.json",
      "year": 2014,
      "month": 5,
      "type": "strategy",
      "tags": [
        "st-brand"
      ],
      "title": "14.5億円調達とテレビCMによるマス広告先行投資",
      "subtitle": "売上のない創業間もない段階で、社長・山田進太郎氏はなぜ異例のテレビCMへ賭けたのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "us-expansion-2014",
      "url": "/tse/4385/decisions/us-expansion-2014/",
      "api_url": "/api/4385/decisions/us-expansion-2014.json",
      "year": 2014,
      "month": 9,
      "type": "overseas",
      "tags": [
        "gl-entry"
      ],
      "title": "米国事業（Mercari US）への継続投資と累計約181億円の評価損",
      "subtitle": "日本で確立したCtoCモデルを、山田進太郎社長はなぜ米国で貫き続けたのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "merpay-2017",
      "url": "/tse/4385/decisions/merpay-2017/",
      "api_url": "/api/4385/decisions/merpay-2017.json",
      "year": 2017,
      "month": 11,
      "type": "new_business",
      "tags": [
        "pf-diversify-related"
      ],
      "title": "メルペイ設立とスマホ決済参入による「メルカリ経済圏」の構築",
      "subtitle": "フリマの売上金を実店舗へ——フリマに次ぐ第二の柱として金融・決済に踏み出した判断",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "us-restructuring-2024",
      "url": "/tse/4385/decisions/us-restructuring-2024/",
      "api_url": "/api/4385/decisions/us-restructuring-2024.json",
      "year": 2024,
      "month": 6,
      "type": "restructuring",
      "tags": [
        "tr-restructuring",
        "gl-retreat",
        "pf-focus"
      ],
      "title": "米国事業の大規模リストラと成長戦略の国内回帰",
      "subtitle": "10年をかけた米国事業で赤字を垂れ流してきた山田進太郎CEOは、なぜ人員を半減させ「バック・トゥ・スタートアップ」を掲げたのか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "founding",
      "count": 1,
      "url": "/api/4385/decisions/by-type/founding.json"
    },
    {
      "key": "new_business",
      "count": 1,
      "url": "/api/4385/decisions/by-type/new_business.json"
    },
    {
      "key": "overseas",
      "count": 1,
      "url": "/api/4385/decisions/by-type/overseas.json"
    },
    {
      "key": "restructuring",
      "count": 1,
      "url": "/api/4385/decisions/by-type/restructuring.json"
    },
    {
      "key": "strategy",
      "count": 1,
      "url": "/api/4385/decisions/by-type/strategy.json"
    }
  ],
  "by_decade": [
    {
      "key": "2010s",
      "count": 4,
      "url": "/api/4385/decisions/by-decade/2010s.json"
    },
    {
      "key": "2020s",
      "count": 1,
      "url": "/api/4385/decisions/by-decade/2020s.json"
    }
  ]
}