The concept of neocolonialism as a general framework for analysis is sometimes invoked as a possible alternative to the preoccupations of postcolonial critiques. It was elaborated in theoretical terms by the Ghanaian leader, Kwame Nkrumah, whose book Neocolonialism: The Last Stage of Imperialism dates from 1965. Much of his analysis still provides the basic understanding of the term, and defines the assumed parameters of economic power in postcolonial theory. Since 1965 a vast amount of work has been done in many different regions of the postcolonial world, that has successively redefined and developed the early analysis of neocolonialism by Nkrumah. Postdevelopment theory and postcolonial critical analyses are in part the product of that process, though postcolonialism both constitutes an analysis of the system of economic and political domination and develops means of resistance to it, as in the Latin American model.