David Baldwin conceptualizes international economic interdependence as the opportunity costs incurred from potential exit costs that incur as a result of breaking existing economic ties between nations. Others argue that it entails the degree of sensitivity of a country’s economic behaviour to policies and development of countries outside its border. Global economic interdependence has grown in the post-World War II period as a result of technological progress (e.g. computerization, containerization, low-cost travel, low-cost communications) and associated policies that were aimed at opening national economies internally and externally to global competition.