Gambling is a large and growing industry. With that growth, there has also been growing concern about the potential harms that can arise from problem gambling. In late 2022, new legislation was introduced in Ireland to provide for more stringent regulation of the gambling industry and to establish an independent regulator, the Gambling Regulatory Authority of Ireland (GRAI).

This review summarises and evaluates evidence from international research that is relevant to a number of policy questions. In doing so, it also identifies where evidence is deficient or lacking, to highlight some important and fruitful avenues for future research.