This is a basic kind of introductory economic story, that if you have something in tense towards a natural monopoly, then you don't have the competitive forces of the market to discipline producers.
دن بيکر: اقتصاد دان/مرکز پژوهش و سياست گذاري اقتصادي ... اين يکي از مفاهيم ابتدايي درسنامه هاي اقتصاد است، که اگر شما چيزي داريد که گرايش به انحصاري شدن دارد...