  Emergence of hierarchies is investigated by Monte Carlo simulation in a timid
society where all individuals are pacifist. The self-organiztion of hierarchies
is shown to occur in two steps as the population is increased, i.e. there are
three states, one egalitarian and two hierarchical states;the transition from
the egalitarian to the first hierarchical state is continuous and the
transition from the first hierachical state to the second one is discontinuous.
In the first hierarchical society, all individuals belong to either middle
class or losers and no winners appear. In the second hierarchical society, many
winners emerge and the population of the middle class is reduced. The hierarchy
in the second hierarchical society is stronger than the hierachy in a
no-preference society studied by Bonabeau et al [ Physica A{\bf 217}, 373
(1995)]
