Governments compete with one another to provide the policies their electorates want.
This first overview greatly simplifies the model however. There is also competition within governments, with different departments and agencies also competing to provide similar or substitutable policies and programs. In a case like that, similar services on the websites of two competing departments are vying for the most hits or downloads. In Breton's hands, this argument is well presented and very persuasive. I have only a couple of reservations, and they both hinge on the desirability of competition itself.