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As communist regimes collapsed in the years 1989—91, communist parties and leaders exited power in roughly half the cases. The causes and the impact of this variation have generated considerable controversy. The authors show that the combined timing and content of the introduction of mass literacy was responsible for generating the national standards and comparisons that either sustained the legitimacy of communist party rule or led to its rapid and complete demise during the collapse of communist regimes. Mass literacy explains more of the patterns of the communist exit than do structural, modernization, or communist legacy accounts, and it provides a clear and sustained causal chain.
Darden et al. (Sun,) studied this question.