  A simple Ising spin model which can describe a mechanism of making a decision
in a closed community is proposed. It is shown via standard Monte Carlo
simulations that very simple rules lead to rather complicated dynamics and to a
power law in the decision time distribution. It is found that a closed
community has to evolve either to a dictatorship or a stalemate state
(inability to take any common decision). A common decision can be taken in a
"democratic way" only by an open community.
