To your first question, there is a concept called PPP (purchasing power parity), which measures the cost of a basket of items across regions (a famous implement

To your first question, there is a concept called PPP (purchasing power parity), which measures the cost of a basket of items across regions (a famous implementation is the Big Mac Index), so you wouldn't really go around asking people their salary, it is more in terms of a region or a country.. As to the question about price discrimination it already exists as a result of free market/supply demand.. Bread costs 50 cents in India vs 2.50$ in the US.. That is simply because people as willing to only pay 50c.. But with media, there exists no "need", people consume whatever is given to them, so there is a need to artificially regulate prices, in the long run that will benefit the media houses, they are just too short sighted to see that..