Other engineers made improvements in the program’s performance with Power Mac chips and bringing the Windows version up to the same level as the Mac version.

The Big Mac Index is based on the theory of purchasing-power parity (PPP), which says that exchange rates should move to make the price of a basket of goods the same in each country.

THE Big Mac index is based on the theory of purchasing-power parity (PPP)—exchange rates should equalise the price of a basket of goods in different countries.