Author/Authors :
Song, Zhijie School of Economic and Management - Yanshan University - Qinhuangdao, China , Shi, Rui School of Economic and Management - Yanshan University - Qinhuangdao, China , Jia, Jie School of Economic and Management - Yanshan University - Qinhuangdao, China , Wang, Jian School of Economic and Management - Yanshan University - Qinhuangdao, China
Abstract :
Sentiment contagion is similar to an infectious disease that spreads in a crowd. In this study, we extend the proposed SOSaSPSa model (susceptible-optimistic-susceptible and susceptible-pessimistic-susceptible) by considering the interaction between
optimists and pessimists. Simulation results show that our model is reasonable and can better explain the entire contagion process
by considering three groups of people.The recovery speed of pessimists has an obvious regulative effect on the number of pessimists
and the possibility of optimists coming in contact with pessimists to be infected as pessimism plays a greater role than that
of reverting to susceptibility. The number of pessimists is positively related to the possibility that optimists come in contact
with pessimists to become pessimistic but is negatively related to the possibility of the other way around. When the speed of
spontaneous generation is slow, the number of pessimists sharply increases. However, the increase is not so apparent when the
speed of spontaneous generation reaches a certain number.
