TCO 2011 study update_wallet share Every year Nokia conducts the telecom equivalent of the Economist’s “Big Mac” study; it compares the total costs of using an identical basket of services over a mobile phone in multiple emerging economies. It used to cover 77 countries, but now they’ve pared it down to 50 major emerging economies. If only the voice and SMS services are counted (plus 1/36th of the cost of the cheapest Nokia phone in that market), Bangladesh is the winner. A Bangladeshi user will pay only USD 1.91/month as against the average of USD 11.