That is customers can refuse to buy at all (Exit) and voters can protest instead of silent voting (Voice). Or they can support a side actively (Loyalty).
Taking this into account changes the simple economic result to one overlayed with longer term Exit/Voice trends.
That’s true only if the voters/buyers have only exactly these choices. But in general they have more:
They can also Exit, Voice, and Loyalty ( http://en.wikipedia.org/wiki/Exit,_Voice,_and_Loyalty ).
That is customers can refuse to buy at all (Exit) and voters can protest instead of silent voting (Voice). Or they can support a side actively (Loyalty).
Taking this into account changes the simple economic result to one overlayed with longer term Exit/Voice trends.