Sardinia

A longitudinal national data series for 167 nations. The present dataset represents an expansion both of temporal coverage and of substantive variable categories from the earlier Cross Polity Time Series dataset (ICPSR 5002) by the Center for Comparative Political Research, State University of New York (Binghampton). General areas included among the 169 variables now available are demographic, social, political, and economic topics. The dataset consists of 8985 cases, which represent nation-year observations.

This dataset, a modified and updated version of POLITY II: POLITICAL STRUCTURES AND REGIME CHANGE, 1800-1986 (SN 2942)(ICPSR 9263), focuses on indicators of political authority and regime type for 177 members of the international system. Main Topics:

This data collection describes international and civil wars for the years 1816-1992. Main Topics: This data collection consists of two files:

For each international system member, the presence or absence at five year intervals of a diplomatic mission from every other system member is coded. Main Topics:Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.

For each international system member, the number of missions received, the particular nations sending missions and the rank of mission from each nation are coded. Data are recorded at approximately five year intervals beginning in 1817. Main Topics:Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.

Carried out under the auspices of the Data Development for International Research (DDIR) project, Polity II was designed to develop longnitudinal indicators of political structures and regime change. This file encompasses most member states of the international system from 1800 to 1986 and consists of annual codings of regimes' structural characteristics, institutional changes, and the directionality of changes on underlying dimensions of democracy, autocracy, and power concentration.

This study contains data for 428 new polities (all polities that developed after a major change in the old polity). Main Topics: Variables Variables include 11 identification variables, 28 variables defining origin and character of polity at its origin and termination, 31 calculated scores for polity characteristics, and 14 generated variables defining characteristics of polities.

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