So recently there's been a few little discussions about the price of Transformers from various parts of the world which have lead to discussions about the cost of living.
Deutsche Bank have released their
2015 World Price Comparison which covers various things in life from the cost of a Big Mac, to beer, petrol/gas, Levi jeans, as well as rent for office space.
It's a bit of a read but quite interesting.
Take note however that price comparassions are based on major cities and doesn't factor in rural/remote areas where costs are much more varied.