Kowalski (2011) establishes the availability and affordability of energy as source of comparative advantage, since sectors differ considerably in the amount of energy they require for production. For instance, as digitalization raises the complexity of tasks performed by workers, developed economies can strengthen their comparative advantage in skill-intensive sectors. Similarly, as new technologies diminish the importance of physical infrastructure, developing economies will be able to gain comparative advantage in sectors that are most affected by the shift from physical to digitalized trade.