Democracy-Dictatorship Index

Common card · No. 276279

Democracy-Dictatorship (DD), index of democracy and dictatorship, or simply the DD index, or the DD datasets, was the binary measure of democracy and dictatorship whose publication stopped in 2008. Originally proposed by Adam Przeworski, and further developed and maintained by José Antonio Cheibub, Jennifer Gandhi, and James Raymond Vreeland. Based on the regime binary classification idea proposed by Mike Alvarez in 1996, and the Democracy and Development (or DD measure, ACLP dataset) proposed by Przeworski, Cheibub, Gandhi, and Vreeland developed a six-fold regime classification scheme, resulting what the authors called as the DD datasets. The DD dataset covers the annual data points of 199 countries from 1946 (or date of independence) to 2008.

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