International Political Economy (IPE): Between conflict and cooperation

International Relations scholars appear to disagree on the causes of economic underdevelopment, and unequal distribution of wealth among nations. Neo-Marxist scholars explain these inequalities through a systemic theory, focusing on a world system that benefits some states disproportionally. Others argue that the causes of economic underdevelopment are to be found in unit-level attributes. Which of these two examples do you find most compelling? Why? 

Learning Outcomes
CO-3: Examine the causes of conflict and cooperation in the international system using the
three primary levels of analysis.
CO-5: Apply theoretical arguments to contemporary cases of conflict and cooperation in the
international system