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Research Chair on Gambling

Chaire de recherche sur l'étude du jeu

Research Chair on Gambling

Chaire de recherche sur l'étude du jeu


New publication: Gambling spending and its concentration on problem gamblers

March 29, 2019

Researchers at the Chair published a new article titled Gambling spending and its concentration on problem gamblers in the Journal of Business Research.


While most gamblers spend moderate amounts of money, a few spend much more. This leads to spending being concentrated among a small number of players. Building on a body of literature that shows disproportionate spending by problem gamblers, we hypothesize that problem gambling causes such concentration. We investigate this hypothesis empirically by using GINI coefficients derived from survey datasets of gamblers from three different jurisdictions: France, Québec, and Germany.

We find strong positive relationships between the GINI coefficient and (1) the share of revenue derived from problem gamblers, and (2) excess spending of problem gamblers. We interpret these results as a link between the effect of problem gambling—excessive and disproportionate spending—and concentration of gambling demand. Since the problem gambling status of players is often unknown, policy makers and gambling operators could use the GINI coefficient as an additional indicator to monitor social risk in gambling markets.

Consult the publication here.

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