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Joon Han | Digital Diagnostics
Work That Diagnoses What Surface Metrics Miss
Each project starts with a business question, tests the data behind it, and ends with an insight that can support a decision.
Turning Campaign Metrics Into Budget Decisions
Python | Excel / Campaign Dataset | Budget Reallocation & Performance Review | Marketing Analytics
Which campaigns should receive more budget, less budget, or further review based on spend efficiency and conversion quality?
Increase Budget campaigns generated the strongest profit and ROAS signal
Reduce Budget campaigns showed clear budget risk with weak return efficiency
Platform analysis showed Facebook and TikTok as stronger scaling signals while LinkedIn carried the highest risk
Published · 2 May 2026
Supporting Case Studies
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