Economist Marc Levinson: Ideas will replace raw materials. The globalisation of ideas will be entirely different to that of goods. A new form of trade is reshaping our world, and it’s driven by the movement of bits and bytes, not goods, around the globe. Marc Levinson reflects on how the globalisation of trading services and ideas will have a profound impact on national economies. As this fourth wave develops, Levinson warns that the lack of internet and tech in particular areas means that regions will be left behind and become increasingly underdeveloped.