The scale of international transactions involved is illustrated by the example of one firm, Apple, which reported in June 2017 that it had been the channel for payments totalling over US$ 70 billion to its “global developer community" since its App Store was opened in 2008, as over 180 billion applications had been downloaded since then (Apple Inc., 2017). As the previous sections have shown, digital technologies create new products, change the characteristics of traditional products, lower trade costs, and shift the sectoral composition of production. To answer the question of who trades what in the digital age, this section examines which traditional determinants of trade patterns are likely to become more important and outlines which new determinants of trade patterns may arise in the digital age. They are commonly referred to as sources of comparative advantage.