Supported by the following organizations
This is to certify that Diana Dumitrescu successfully completed and received a passing grade in Happiness: Managing Happiness a course of study offered by HarvardX, an online learning initiative of Harvard University.
Noted by
Arthur Brooks
William Henry Bloomberg Professor of the Practice of Public Leadership at Harvard Kennedy School and Professor of Management Practice at Harvard Business School Harvard University
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- Verified Certificate Issued February 26, 2026
- Valid Certificate ID 6eb674017f66411c8c6b6d832355eed4
- Effort 18 hours