Then again, even books sometimes have a 'mass market edition' for countries like India, that costs about a fifth than the US paperback. I'm not sure it makes s

Then again, even books sometimes have a 'mass market edition' for countries like India, that costs about a fifth than the US paperback. I'm not sure it makes sense to sell at the same price all over the world. What does it even mean 'to sell at the same price', who defines the exchange rate? The exchange rate of some currency often reflects market forces and speculation, and the purchasing power parity exchange rate can be wildly different. In some countries, such as Zimbabwe, the exchange rate with the USD depended strongly on who you were and where you bought it! [0] Maybe you could define a hourly-rate-equivalent-price: if a Photoshop license costs $2500 [1] in the US and one hour of the median Photoshop-using professional is worth $25 in the US, then Photoshop should cost like 100 hours of work in the country where you sell it, so maybe 500$ in India and $200 in China. [0] http://en.wikipedia.org/wiki/Zimbabwean_dollar http://en.wikipedia.org/wiki/Zimbabwean_dollar [1] All the numbers that follow are pulled out of my own ass