Prior foreign research showed significant positive relationship between geographical accessibility, gambling advertising and gambling behaviors. This paper, using data from two studies, describes and discusses the change in prevalence of gambling in Hong Kong with the liberalization of gambling activities in Macau. Results mirror the findings of foreign studies. Analysis showed that the groups who indicated that they were mostly influenced by the increased number of Macau casinos and gambling advertising were those aged 20–39, those with tertiary or above education, and the problem and pathological gamblers. Policy makers and gaming operators' effort to implement responsible gambling policies to prevent gambling addiction are discussed.

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