Abstract
Nowadays, online gambling has a great negative impact on the society. In order to study the effect of people’s psychological factors, anti-gambling policy, and social network topology on online gambling dynamics, a new SHGD (susceptible–hesitator–gambler–disclaimer) online gambling spreading model is proposed on scale-free networks. The spreading dynamics of online gambling is studied. The basic reproductive number R_{0} is got and analyzed. The basic reproductive number R_{0} is related to anti-gambling policy and the network topology. Then, gambling-free equilibrium E_{0} and gambling-prevailing equilibrium E_{ +} are obtained. The global stability of E_{0} is analyzed. The global attractivity of E_{ +} and the persistence of online gambling phenomenon are studied. Finally, the theoretical results are verified by some simulations.
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