Shaky numbers on unlicensed online gambling may mislead policymakers

Estimates of unlicensed online gambling in the Nordic countries vary widely and are often based on non-transparent data sources. This is shown by a new scoping review published in PLOS ONE. Led by researchers from, among others, Karolinska Institutet, the study reviews 32 reports and finds that figures describing the “black market” are frequently used as political arguments, despite unclear underlying methodologies.

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