Concentration of gambling spending by product type: analysis of gambling accounts records in Norway.

ABSTRACT:

Background

Most previous studies on the distribution of gambling losses were based on self-reported data. In this study, we employed tracking data (i.e. electronic betting records) to examine the concentration of gambling losses and whether concentration varies by product type.

Method

Tracking data were provided by the Norwegian gambling monopolist, Norsk Tipping (NT). Data comprised of 14 different games for a random draw of 2% (N = 39 995) of all NT's customers in 2019. We applied three measures of concentration of gambling losses: the mean to median ratio, the Gini coefficient, and the proportion of total losses accounted for by the upper 1%, 5% or 10% of those who gamble.

Results

Across the 14 games, the mean/median ratio was 2.22, ranging from 1.37 to 17.4

SUBMITTER: Rossow I 

PROVIDER: S-EPMC11934949 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature