{"blocks": [{"key": "2c8c6eb0", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "a2733d30", "text": "Offline marketing: Pinterest places billboards in train stations to drive traffic and engagement.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "0d092e36", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "812611c9", "text": "How would you measure the overall effectiveness of this billboard campaign? Define and quantify ‘engagement’ attributable to the billboard exposure. How can you estimate the size and characteristics of the population impacted by the billboards? Propose a framework to forecast potential incremental gains (sign-ups, sessions, revenue) in targeted areas.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "039f5ddb", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "cf40f876", "text": "Consider geo-lift, difference-in-differences, synthetic controls, tracking URLs/QR codes, baseline trends.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}