EDS Study ID: 1080
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Source: University of Maryland Center for International
The Polity IV project Web site contains information on, and access to, the most recent update of the well-known and highly respected Polity data series, originally designed by Ted Robert Gurr. Polity IV contains coded annual information on regime and authority characteristics for all independent states (with greater than 500,000 total population) in the global state system and covers the years 1800-2004. It contains a description of the Polity IV Project and provides access to the Registration page for downloading the dataset and users' manual; these materials are provided at no cost to consumers.
The Polity IV Project continues the Polity research tradition of coding the authority characteristics of states in the world system for purposes of comparative, quantitative analysis. The original Polity conceptual scheme was formulated, and the original Polity I data collected, under the direction of Ted Robert Gurr. Three earlier verions of Polity releases are also available.
Public Internet site, individual users must register.