Mad Cool Leads the Charge: European Festivals Show Formidable Strength in the Inaugural 'Yanolja Festival Index'

SEOUL, South Korea, June 8, 2026 /PRNewswire/ -- Yanolja Research announced today the launch of the "Global Festival Attractiveness Index" (widely known as the "Yanolja Festival Index"). This pioneering framework is designed to objectively measure the qualitative appeal of 560 major...

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