periods of time, Africa has lagged behind the rest of the world in terms of technology, political development, and prosperity. It is the part of the world where centralized states formed very late and very tenuously. Where they did form, they were likely as highly absolutist as the Kongo and often short lived, usually collapsing. Africa shares this trajectory of lack of state centralization with countries such as Afghanistan, Haiti, and Nepal, which have also failed to impose order over their territories and create anything resembling stability to achieve even a modicum of economic progress. Though located in very different parts of the world, Afghanistan, Haiti, and Nepal have much in common institutionally with most nations in sub-Saharan Africa, and are thus some of the poorest countries in the world today.
How African institutions evolved into their present-day extractive form again illustrates the process of institutional drift punctuated by critical junctures, but this time often with highly perverse outcomes, particularly during the expansion of the Atlantic slave trade. There were new economic opportunities for the Kingdom of Kongo when European traders arrived. The long-distance trade that transformed Europe also transformed the Kingdom of Kongo, but again, initial institutional differences mattered. Kongolese absolutism transmogrified from completely dominating society, with extractive economic institutions that merely captured all the agricultural output of its citizens, to enslaving people en masse and selling them to the Portuguese in exchange for guns and luxury goods for the Kongolese elite.
The initial differences between England and Kongo meant that while new long-distance trade opportunities created a critical juncture toward pluralistic political institutions in the former, they also extinguished any hope of absolutism being defeated in the Kongo. In much of Africa the substantial profits to be had from slaving led not only to its intensification and even more insecure property rights for the people but also to intense warfare and the destruction of many existing institutions; within a few centuries, any process of state centralization was totally reversed, and many of the African states had largely collapsed. Though some new, and sometimes powerful,