Here we are at the start of the school year again. The excitement is all over the place and those who just start their IB Economics course will come across concepts such as ‘scarcity’, ‘needs’ and ‘wants’. Scarcity of resources to satisfy all needs and wants of us, humans, is in the center of the so called ‘economic problem’. Efficient allocation of the available resources is what governments aim to achieve. But sometimes it is not so easy to share resources with others, and this article about Sudan and South Sudan is a good example of how scarcity of resources and the inability of the two countries to reach an agreement on the oil revenues can spark a new war action between them.