two alternatives (e.g., Myerson (1998)). We show that there always exists an efficient equilibrium under the simple … alternatives and the condition under which they exist. There is only one type of inefficient equilibrium with two alternatives. In … this equilibrium, voters vote unresponsively because they all vote for the same alternative. Under the same condition, the …

with unawareness, define equilibrium, and prove existence. We show how equilibria are extended naturally from lower to … investigate the robustness of equilibria to uncertainty about opponents' awareness of actions. We show that a Nash equilibrium of …