The decision making process in Bangladesh regarding the acceptance of nuclear power plants has been analyzed on the
basis of authors’ psychology-oriented artificial society model [1]. The first part of this paper includes the selection of agents for
the modeling, and collection of various parameters of Bangladeshi society. In particular, a “keyword analysis method” is
proposed to determine the knowledge function of agents. From the keyword analysis of various message data from the agents, it
has been found that the knowledge functions of government, general people and mass media have a similar structure which
reflects their positive attitude to the problem; only social network media is against the problem. In the latter part, computer
simulations are carried out and the knowledge function of each agent is calculated as a function of time. It has been shown from
the computational study that the Bangladeshi society, as a whole, will continue to have a positive attitude to the problem in the
next six years, and that this trend will not change even in a suppositional case where the effect of social network media is 10 times
stronger than that of the present.