Methodology
The index is calculated as the sum of squared market shares of firms in e-commerce, online advertising, app distribution, and digital content markets. Data are compiled from public sources, company reports, and field research.
Index · 01
A sectoral index measuring the concentration level of digital markets in Türkiye based on the Herfindahl-Hirschman Index (HHI).
The index is calculated as the sum of squared market shares of firms in e-commerce, online advertising, app distribution, and digital content markets. Data are compiled from public sources, company reports, and field research.
Values above 0.25 indicate high concentration. Türkiye's 2026 value of 0.74 reflects a seriously concentrated market structure.
The index is updated quarterly. The historical dataset will be accessible via the EHPAGM open data portal.
Collaboration
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