  A network of agents is considered whose decision processes are described by
the quantum decision theory previously advanced by the authors. Decision making
is done by evaluating the utility of alternatives, their attractiveness, and
the available information, whose combinations form the probabilities to choose
a given alternative. As a result of the interplay between these three
contributions, the process of choice between several alternatives is
multimodal. The agents interact by exchanging information, which can take two
forms: (i) information that an agent can directly receive from another agent
and (ii) information collectively created by the members of the society. The
information field common to all agents tends to smooth out sharp variations in
the temporal behaviour of the probabilities and can even remove them. For
agents with short-term memory, the probabilities often tend to their limiting
values through strong oscillations and, for a range of parameters, these
oscillations last for ever, representing an ever lasting hesitation of the
decision makers. Switching on the information field makes the amplitude of the
oscillations smaller and even can halt the everlasting oscillations forcing the
probabilities to converge to fixed limits. The dynamic disjunction effect is
described.
