{ "id": "supply-shift-wholesale-equilibrium", "schemaVersion": 2, "title": { "ja": "冷凍庫の増設で供給増 — 卸値は下がり取扱量は増える", "en": "More Cold Storage Expands Supply — Wholesale Price Falls as Volume Rises" }, "summary": { "ja": "需要を一定とした需給曲線の概念図で、供給の右シフト後に均衡量が増え、均衡価格が下がる関係を示す", "en": "A fixed-demand supply-and-demand model shows equilibrium quantity rising and equilibrium price falling after a rightward supply shift." }, "capturedAt": "2026-09-25", "categories": [ "presentation" ], "tags": [ "data-viz", "minimal" ], "useCases": [ "pricing" ], "format": "slide-16x9", "density": "medium", "layout": { "kind": "axis", "canvas": { "w": 1920, "h": 1080 }, "margin": { "top": 90, "right": 120, "bottom": 40, "left": 120 } }, "type": { "title": { "size": 44, "weight": 700, "tracking": "0.01em" }, "subtitle": { "size": 22, "weight": 400 }, "axisTitle": { "size": 20, "weight": 700 }, "tick": { "size": 20, "weight": 400 }, "curveLabel": { "size": 24, "weight": 700 }, "pointLabel": { "size": 20, "weight": 700 }, "cardLabel": { "size": 20, "weight": 500 }, "metric": { "size": 28, "weight": 700 }, "finding": { "size": 22, "weight": 700 }, "legend": { "size": 20, "weight": 500 }, "note": { "size": 20, "weight": 400 } }, "colors": { "ground": "#F7F8F5", "surface": "#FFFFFF", "ink": "#18232D", "muted": "#586875", "accent": "#C64E32", "rule": "#D7DEE1", "series": [ "#236B9A", "#A66019" ] }, "rules": [ { "ja": "需要Dは固定したまま供給をS₀からS₁へ右に移し、均衡点の変化を比べる", "en": "Hold demand D fixed and shift supply from S₀ to the right at S₁, then compare the equilibrium points." }, { "ja": "均衡点から価格軸と数量軸へ投影し、単価と1日量を対応づけて読む", "en": "Project each equilibrium to the price and quantity axes to read the unit price and daily volume together." }, { "ja": "これは需要と費用など他の条件を一定にした概念モデルで、曲線の傾きは実測値ではない", "en": "This conceptual model holds demand and other conditions such as costs constant; curve slopes are not empirical measurements." }, { "ja": "架空値は説明用であり、実市場の価格予測や投資判断には使わない", "en": "Fictional values are for explanation and should not be used for real-market price forecasts or investment decisions." } ], "cover": "https://design-vault.pages.dev/_astro/cover.DJXTbg3I.png", "assets": [], "shortlist": false, "status": "published", "relations": { "similar": [] }, "license": "Original", "publishedAt": null, "reproduction": { "spec": { "format": "slide-16x9", "density": "medium", "layout": { "kind": "axis", "canvas": { "w": 1920, "h": 1080 }, "margin": { "top": 90, "right": 120, "bottom": 40, "left": 120 } }, "type": { "title": { "size": 44, "weight": 700, "tracking": "0.01em" }, "subtitle": { "size": 22, "weight": 400 }, "axisTitle": { "size": 20, "weight": 700 }, "tick": { "size": 20, "weight": 400 }, "curveLabel": { "size": 24, "weight": 700 }, "pointLabel": { "size": 20, "weight": 700 }, "cardLabel": { "size": 20, "weight": 500 }, "metric": { "size": 28, "weight": 700 }, "finding": { "size": 22, "weight": 700 }, "legend": { "size": 20, "weight": 500 }, "note": { "size": 20, "weight": 400 } }, "colors": { "ground": "#F7F8F5", "surface": "#FFFFFF", "ink": "#18232D", "muted": "#586875", "accent": "#C64E32", "rule": "#D7DEE1", "series": [ "#236B9A", "#A66019" ] }, "rules": [ "Hold demand D fixed and shift supply from S₀ to the right at S₁, then compare the equilibrium points.", "Project each equilibrium to the price and quantity axes to read the unit price and daily volume together.", "This conceptual model holds demand and other conditions such as costs constant; curve slopes are not empirical measurements.", "Fictional values are for explanation and should not be used for real-market price forecasts or investment decisions." ] }, "prompt": { "ja": "以下の仕様でスライドを 1 枚作ってください。\n\n- 版面 1920 × 1080\n- 余白 上 90 右 120 下 40 左 120\n\n## 文字（版面 1920px に対する px）\ntitle 44px / 700 / 字間 0.01em\nsubtitle 22px / 400\naxisTitle 20px / 700\ntick 20px / 400\ncurveLabel 24px / 700\npointLabel 20px / 700\ncardLabel 20px / 500\nmetric 28px / 700\nfinding 22px / 700\nlegend 20px / 500\nnote 20px / 400\n\n## 配色\n地 #F7F8F5 / 面 #FFFFFF / 文字 #18232D / 補助 #586875 / 強調 #C64E32 / 罫 #D7DEE1 / #236B9A / #A66019\n\n## 外すと崩れる点\n- 需要Dは固定したまま供給をS₀からS₁へ右に移し、均衡点の変化を比べる\n- 均衡点から価格軸と数量軸へ投影し、単価と1日量を対応づけて読む\n- これは需要と費用など他の条件を一定にした概念モデルで、曲線の傾きは実測値ではない\n- 架空値は説明用であり、実市場の価格予測や投資判断には使わない\n\n内容は［ここに自分の内容を書く］に置き換えてください。寸法と配色はそのまま守ってください。\n正確に再現する場合は、この HTML をそのまま使ってください: https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium/pattern.html", "en": "Produce one slide to the following specification.\n\n- Canvas 1920 × 1080\n- Margin top 90 right 120 bottom 40 left 120\n\n## Type (px against a 1920px canvas)\ntitle 44px / 700 / tracking 0.01em\nsubtitle 22px / 400\naxisTitle 20px / 700\ntick 20px / 400\ncurveLabel 24px / 700\npointLabel 20px / 700\ncardLabel 20px / 500\nmetric 28px / 700\nfinding 22px / 700\nlegend 20px / 500\nnote 20px / 400\n\n## Colour\nGround #F7F8F5 / Surface #FFFFFF / Ink #18232D / Muted #586875 / Accent #C64E32 / Rule #D7DEE1 / #236B9A / #A66019\n\n## Constraints — dropping these breaks it\n- Hold demand D fixed and shift supply from S₀ to the right at S₁, then compare the equilibrium points.\n- Project each equilibrium to the price and quantity axes to read the unit price and daily volume together.\n- This conceptual model holds demand and other conditions such as costs constant; curve slopes are not empirical measurements.\n- Fictional values are for explanation and should not be used for real-market price forecasts or investment decisions.\n\nReplace the content with [your content]. Keep the measurements and colours as given.\nFor an exact reproduction, use the verbatim HTML at https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium/pattern.html." }, "code": { "html": "\n\n冷凍庫の増設で供給増 — 卸値は下がり取扱量は増える\n\n\n\n\n 供給の増加による卸売市場の均衡変化\n 需要曲線は変わらず、供給曲線が右へ移動する概念図。均衡取扱量は1日70箱から120箱へ増え、価格は1箱1000円から800円へ下がる。\n \n \n \n \n \n 冷凍庫の増設で供給増 — 卸値は下がり取扱量は増える\n 需要が変わらないと仮定したとき、供給曲線の右シフトが均衡をどう動かすか\n \n\n \n \n \n \n \n \n \n \n \n \n \n \n 卸売単価（円 / 箱）\n 1日あたり取扱量（箱）\n \n 600\n 800\n 1,000\n 1,200\n 0\n 40\n 80\n 120\n 160\n \n\n \n \n \n \n \n \n 需要 D\n 供給 S₀\n 供給 S₁\n 増設前\n 冷凍庫の稼働後\n\n \n \n \n \n \n \n \n \n 均衡 E₀\n \n 均衡 E₁\n \n\n \n \n \n \n 増設前 · E₀\n 70 箱 / 日\n ¥1,000 / 箱\n 供給曲線 S₀\n\n \n \n 稼働後 · E₁\n 120 箱 / 日\n ¥800 / 箱\n 供給曲線 S₁\n \n\n \n モデル上の変化\n 均衡量 +50 箱 / 日\n 均衡価格 −¥200 / 箱\n \n \n 需要 D\n \n 供給 S₀\n \n 供給 S₁\n \n \n 概念モデルの架空値。需要・費用など他の条件を固定した説明で、実市場の価格予測ではない。\n \n\n", "url": "https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium/pattern.html", "fonts": [ "https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium/font.css", "https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium/font-0.woff2", "https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium/font-1.woff2", "https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium/font-2.woff2" ] } }, "urls": { "ja": "https://design-vault.pages.dev/designs/supply-shift-wholesale-equilibrium", "en": "https://design-vault.pages.dev/en/designs/supply-shift-wholesale-equilibrium" }, "notesMarkdown": "### 視覚的な問い\n\n需要が一定の市場で冷凍庫を増設し、供給量が増えたら、均衡価格と取扱量はどう動くか。\n\n### 構造\n\n横軸は1日あたり取扱量、縦軸は箱あたり卸売単価。黒い需要曲線Dは動かさず、供給曲線を増設前のS₀から稼働後のS₁へ右に移す。交点はE₀からE₁へ移り、モデル上の均衡量は70箱から120箱へ増え、均衡価格は1,000円から800円へ下がる。\n\nこの形は「他の条件が同じなら供給増が均衡価格を押し下げる」という比較静学の説明に使う。曲線の傾きや交点は計測した市場推定ではなく、需要が一定という条件も実市場では崩れうる。実際の価格予測には、期間・商品定義・費用・需要変化を揃えたデータが別途必要になる。\n\n### 適用\n\n- 供給能力の追加が均衡価格と取扱量へ与える方向を説明する\n- 市場条件を固定する経済モデルと、実績ベースの予測を区別する" }