Coordination is a noncooperative rational expectations equilibrium among electors.
The theory allows some electors not to care about policy and admits House districts in which a candidate is running unopposed. A Model of the Political Economy of the United States - Alberto, Londregan et al. Doc 6 Nonvoting and Existence of Equilibrium Under Majority Rule - Melvin, John et al. The Decline of Electoral Participation in America - Paul, John et al.