{
  "dataset": "supa-binjo-watch",
  "version": 1,
  "generated_jst": "2026-11-12 10:31",
  "tax_rates": {
    "before": 8,
    "after": 1,
    "after_period": "2027-04-01〜2029-03-31（法案成立が前提）"
  },
  "shops": {
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      "name": "西友",
      "source_type": "チェーン公式サイトのPB商品価格一覧（みなさまのお墨付き）",
      "price_scope": "チェーン共通の掲載価格（エリア限定品はエリアを記載）。店頭・セール価格とは異なる場合あり",
      "compliance": "CAUTION"
    },
    "tokyu": {
      "name": "東急ストア",
      "source_type": "東急ストアネットスーパー（ログイン前の商品一覧）",
      "price_scope": "ネットスーパーの掲載価格（店舗未選択時の表示）。税込は「参考税込」として整数表示",
      "compliance": "OK"
    }
  },
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      "shop": "西友",
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      "before_price_in_tax": 312.12,
      "before_tax_rate_pct": 8,
      "before_checked_jst": "2026-11-12 10:19",
      "before_url": "https://www.seiyu.co.jp/pb/mo/mo-3297/",
      "before_source_page": "https://www.seiyu.co.jp/pb/mo/milk-products/",
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      "note": "関東エリア向けの商品",
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      "after_price_in_tax": null,
      "after_tax_rate_pct": null,
      "after_checked_jst": null,
      "after_url": null,
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      "product": "おいしい牛乳 成分無調整",
      "size": "1000ml",
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      "before_price_in_tax": 247.32,
      "before_tax_rate_pct": 8,
      "before_checked_jst": "2026-11-12 10:19",
      "before_url": "https://www.seiyu.co.jp/pb/mo/mo-3392/",
      "before_source_page": "https://www.seiyu.co.jp/pb/mo/milk-products/",
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      "after_tax_rate_pct": null,
      "after_checked_jst": null,
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      "product": "極小粒納豆",
      "size": "50g×3パック",
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      "before_price_in_tax": 102.6,
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      "before_checked_jst": "2026-11-12 10:12",
      "before_url": "https://www.seiyu.co.jp/pb/mo/mo-245/",
      "before_source_page": "https://www.seiyu.co.jp/pb/mo/soy-products/",
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      "after_checked_jst": null,
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      "before_price_in_tax": 85.32,
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      "before_checked_jst": "2026-11-12 10:12",
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      "before_source_page": "https://www.seiyu.co.jp/pb/mo/soy-products/",
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      "after_checked_jst": null,
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      "before_price_in_tax": 171.72,
      "before_tax_rate_pct": 8,
      "before_checked_jst": "2026-11-12 10:20",
      "before_url": "https://www.seiyu.co.jp/pb/mo/mo-299/",
      "before_source_page": "https://www.seiyu.co.jp/pb/mo/seasonings/",
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      "after_price_in_tax": null,
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      "after_checked_jst": null,
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      "before_checked_jst": "2026-11-12 10:20",
      "before_url": "https://www.seiyu.co.jp/pb/mo/mo-424/",
      "before_source_page": "https://www.seiyu.co.jp/pb/mo/seasonings/",
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      "note": "",
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      "after_checked_jst": null,
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    {
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      "shop": "西友",
      "staple": "マヨネーズ",
      "product": "国産たまごをつかった マヨネーズ",
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      "jan": "4973450124472",
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      "before_price_in_tax": 312.12,
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      "before_checked_jst": "2026-11-12 10:20",
      "before_url": "https://www.seiyu.co.jp/pb/mo/mo-957/",
      "before_source_page": "https://www.seiyu.co.jp/pb/mo/seasonings/",
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      "note": "",
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      "after_price_in_tax": null,
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      "after_checked_jst": null,
      "after_url": null,
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    {
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      "shop": "西友",
      "staple": "パスタ",
      "product": "1.6mm 色々なソースによくあうスパゲッティ",
      "size": "800g",
      "jan": "4973450177645",
      "before_price_ex_tax": 399.0,
      "before_price_in_tax": 430.92,
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      "before_checked_jst": "2026-11-12 10:19",
      "before_url": "https://www.seiyu.co.jp/pb/mo/mo-1842/",
      "before_source_page": "https://www.seiyu.co.jp/pb/mo/staple/",
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      "after_checked_jst": null,
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      "before_source_page": "https://www.seiyu.co.jp/pb/mo/seasonings/",
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      "before_source_page": "https://www.seiyu.co.jp/pb/mo/milk-products/",
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      "before_source_page": "https://ns.tokyu-bell.jp/shop/c/cC5613/",
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      "jan": "4949486132163",
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      "before_price_in_tax": 279.0,
      "before_tax_rate_pct": 8,
      "before_checked_jst": "2026-11-12 10:22",
      "before_url": "https://ns.tokyu-bell.jp/shop/g/g14415203/",
      "before_source_page": "https://ns.tokyu-bell.jp/shop/c/cC5710/",
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    {
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      "size": "1L",
      "jan": "4949486163037",
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      "before_price_in_tax": 203.0,
      "before_tax_rate_pct": 8,
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    {
      "id": "tokyu-10",
      "shop_id": "tokyu",
      "shop": "東急ストア",
      "staple": "食用油",
      "product": "Vマーク キャノーラ油",
      "size": "1000g",
      "jan": "4949486140250",
      "before_price_ex_tax": 498.0,
      "before_price_in_tax": 538.0,
      "before_tax_rate_pct": 8,
      "before_checked_jst": "2026-11-12 10:27",
      "before_url": "https://ns.tokyu-bell.jp/shop/g/g13417000/",
      "before_source_page": "https://ns.tokyu-bell.jp/shop/c/cC5712/",
      "price_flags": "",
      "note": "",
      "after_price_ex_tax": null,
      "after_price_in_tax": null,
      "after_tax_rate_pct": null,
      "after_checked_jst": null,
      "after_url": null,
      "ex_tax_change_yen": null,
      "ex_tax_change_pct": null,
      "expected_in_tax_if_passed_on": 502.98,
      "status": "baseline"
    },
    {
      "id": "tokyu-11",
      "shop_id": "tokyu",
      "shop": "東急ストア",
      "staple": "みそ",
      "product": "マルコメ タニタ食堂の減塩みそ なめらか",
      "size": "650g",
      "jan": "4902713136808",
      "before_price_ex_tax": 549.0,
      "before_price_in_tax": 593.0,
      "before_tax_rate_pct": 8,
      "before_checked_jst": "2026-11-12 10:27",
      "before_url": "https://ns.tokyu-bell.jp/shop/g/g14612275/",
      "before_source_page": "https://ns.tokyu-bell.jp/shop/c/cC5714/",
      "price_flags": "一覧で割引表示の価格（通常価格は未確認）",
      "note": "",
      "after_price_ex_tax": null,
      "after_price_in_tax": null,
      "after_tax_rate_pct": null,
      "after_checked_jst": null,
      "after_url": null,
      "ex_tax_change_yen": null,
      "ex_tax_change_pct": null,
      "expected_in_tax_if_passed_on": 554.49,
      "status": "baseline"
    },
    {
      "id": "tokyu-12",
      "shop_id": "tokyu",
      "shop": "東急ストア",
      "staple": "マヨネーズ",
      "product": "まろやかマヨネーズ卵黄タイプ",
      "size": "500g",
      "jan": "4971880165645",
      "before_price_ex_tax": 328.0,
      "before_price_in_tax": 354.0,
      "before_tax_rate_pct": 8,
      "before_checked_jst": "2026-11-12 10:22",
      "before_url": "https://ns.tokyu-bell.jp/shop/g/g15210050/",
      "before_source_page": "https://ns.tokyu-bell.jp/shop/c/cC5715/",
      "price_flags": "",
      "note": "",
      "after_price_ex_tax": null,
      "after_price_in_tax": null,
      "after_tax_rate_pct": null,
      "after_checked_jst": null,
      "after_url": null,
      "ex_tax_change_yen": null,
      "ex_tax_change_pct": null,
      "expected_in_tax_if_passed_on": 331.28,
      "status": "baseline"
    }
  ],
  "schema_notes": {
    "before_*": "基準日（2026年11月）の値。税抜は各ページが表示した本体価格／税抜価格そのもの",
    "after_*": "引き下げ後（2027年4月以降）に同じURL・同じ商品で記録する欄。現在は空",
    "ex_tax_change_yen": "after_price_ex_tax - before_price_ex_tax（引き下げ後に計算）",
    "expected_in_tax_if_passed_on": "税抜価格を据え置き、新税率1%で計算した税込の目安（before_price_ex_tax × 1.01）。予測ではなく計算上の比較値",
    "status": "baseline / passed_on（税抜据え置き以下）/ ex_tax_up（税抜が上昇）/ not_found（同一商品が見つからない）"
  },
  "published_row_count": 23,
  "dropped_shop_ids": [
    "iy"
  ],
  "canonical_base": "https://supa.easter.ne.jp/"
}