{
"id": "event-study-pilot-store-incremental-sales",
"schemaVersion": 2,
"title": {
"ja": "試験店の導入効果 — 比較店との差は導入後に広がる",
"en": "Pilot Store Lift — The Gap from Matched Stores Widens After Launch"
},
"summary": {
"ja": "介入前の平行推移と比較群からの反実仮想を重ね、施策導入後の差の差を時系列で読むイベントスタディ",
"en": "An event study compares pre-launch trends and a comparison-based counterfactual to estimate post-launch lift."
},
"capturedAt": "2026-09-25",
"categories": [
"presentation"
],
"tags": [
"data-viz",
"minimal"
],
"useCases": [
"comparison",
"comparison"
],
"format": "slide-16x9",
"density": "medium",
"layout": {
"kind": "axis",
"canvas": {
"w": 1920,
"h": 1080
},
"margin": {
"top": 100,
"right": 140,
"bottom": 90,
"left": 140
}
},
"type": {
"title": {
"size": 44,
"weight": 700,
"tracking": "0.01em"
},
"subtitle": {
"size": 22,
"weight": 500
},
"axisTitle": {
"size": 22,
"weight": 700
},
"tick": {
"size": 20,
"weight": 500
},
"seriesLabel": {
"size": 20,
"weight": 500
},
"eventTag": {
"size": 20,
"weight": 700
},
"effect": {
"size": 26,
"weight": 700
},
"takeaway": {
"size": 26,
"weight": 500
},
"note": {
"size": 20,
"weight": 400
}
},
"colors": {
"ground": "#FFFFFF",
"surface": "#F4F6F9",
"ink": "#131820",
"muted": "#667183",
"accent": "#1F5FA8",
"rule": "#DBE1E9",
"series": []
},
"rules": [
{
"ja": "導入前の推移が平行に近いことを確かめ、比較店が試験店の反実仮想として妥当か検討する",
"en": "Check that pre-launch trends are reasonably parallel and that comparison stores are a credible counterfactual."
},
{
"ja": "反実仮想は比較店の導入前後の変化を試験店の導入前値に加えて推定する",
"en": "Estimate the counterfactual by adding comparison-store change to the pilot store's pre-launch level."
},
{
"ja": "施策と同時に変わった要因があれば、導入後の差を施策だけの因果効果と断定しない",
"en": "Do not attribute the entire post-launch gap to the intervention if other factors changed at the same time."
},
{
"ja": "架空の週次指数。値と平行トレンド仮定は説明用で実測ではない",
"en": "Fictional weekly index; both values and the parallel-trends assumption are illustrative, not measured."
}
],
"cover": "https://design-vault.pages.dev/_astro/cover.RaTWWDum.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": 100,
"right": 140,
"bottom": 90,
"left": 140
}
},
"type": {
"title": {
"size": 44,
"weight": 700,
"tracking": "0.01em"
},
"subtitle": {
"size": 22,
"weight": 500
},
"axisTitle": {
"size": 22,
"weight": 700
},
"tick": {
"size": 20,
"weight": 500
},
"seriesLabel": {
"size": 20,
"weight": 500
},
"eventTag": {
"size": 20,
"weight": 700
},
"effect": {
"size": 26,
"weight": 700
},
"takeaway": {
"size": 26,
"weight": 500
},
"note": {
"size": 20,
"weight": 400
}
},
"colors": {
"ground": "#FFFFFF",
"surface": "#F4F6F9",
"ink": "#131820",
"muted": "#667183",
"accent": "#1F5FA8",
"rule": "#DBE1E9"
},
"rules": [
"Check that pre-launch trends are reasonably parallel and that comparison stores are a credible counterfactual.",
"Estimate the counterfactual by adding comparison-store change to the pilot store's pre-launch level.",
"Do not attribute the entire post-launch gap to the intervention if other factors changed at the same time.",
"Fictional weekly index; both values and the parallel-trends assumption are illustrative, not measured."
]
},
"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 100 右 140 下 90 左 140\n\n## 文字（版面 1920px に対する px）\ntitle 44px / 700 / 字間 0.01em\nsubtitle 22px / 500\naxisTitle 22px / 700\ntick 20px / 500\nseriesLabel 20px / 500\neventTag 20px / 700\neffect 26px / 700\ntakeaway 26px / 500\nnote 20px / 400\n\n## 配色\n地 #FFFFFF / 面 #F4F6F9 / 文字 #131820 / 補助 #667183 / 強調 #1F5FA8 / 罫 #DBE1E9\n\n## 外すと崩れる点\n- 導入前の推移が平行に近いことを確かめ、比較店が試験店の反実仮想として妥当か検討する\n- 反実仮想は比較店の導入前後の変化を試験店の導入前値に加えて推定する\n- 施策と同時に変わった要因があれば、導入後の差を施策だけの因果効果と断定しない\n- 架空の週次指数。値と平行トレンド仮定は説明用で実測ではない\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/event-study-pilot-store-incremental-sales/pattern.html",
"en": "Produce one slide to the following specification.\n\n- Canvas 1920 × 1080\n- Margin top 100 right 140 bottom 90 left 140\n\n## Type (px against a 1920px canvas)\ntitle 44px / 700 / tracking 0.01em\nsubtitle 22px / 500\naxisTitle 22px / 700\ntick 20px / 500\nseriesLabel 20px / 500\neventTag 20px / 700\neffect 26px / 700\ntakeaway 26px / 500\nnote 20px / 400\n\n## Colour\nGround #FFFFFF / Surface #F4F6F9 / Ink #131820 / Muted #667183 / Accent #1F5FA8 / Rule #DBE1E9\n\n## Constraints — dropping these breaks it\n- Check that pre-launch trends are reasonably parallel and that comparison stores are a credible counterfactual.\n- Estimate the counterfactual by adding comparison-store change to the pilot store's pre-launch level.\n- Do not attribute the entire post-launch gap to the intervention if other factors changed at the same time.\n- Fictional weekly index; both values and the parallel-trends assumption are illustrative, not measured.\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/event-study-pilot-store-incremental-sales/pattern.html."
},
"code": {
"html": "\n\n試験店の導入効果 — 比較店との差は導入後に広がる\n\n\n\n\n