The Penn World Table provides purchasing power parity and national income accounts converted to international prices for 189 countries for some or all of the years 1950-2007. The European Union or the OECD provide more detailed purchasing power and real product estimates for their countries and the World Bank makes current price estimates for most PWT countries at the GDP level.
(189 countries, 1950-2007, 2005 as base year)
The MacroDataGuide is a user’s guide to researchers and students worldwide in search of high quality data for social science research. It informs not only on which data are out there and where they can be found, it also provides a qualitative assessment of these resources.
The Global Terrorism Database (GTD) is an open-source database including information on terrorist events around the world from 1970 through 2013 (with annual updates planned for the future). Unlike many other event databases, the GTD includes systematic data on domestic as well as international terrorist incidents that have occurred during this time period and now includes more than 125,000 cases.
The Latinobarometer is a cross-national comparative survey programme in 18 Latin American countries. It investigates the development of democracy and economies as well as societies, using indicators of opinion, attitudes, behaviour and values.
The GSS contains a standard 'core' of demographic, behavioral, and attitudinal questions, plus topics of special interest. The GSS takes the pulse of America, and is a unique and valuable resource. It has tracked the opinions of Americans over the last four decades.
This organization does many survey-based research studies of political and civic engagement. Recent reports available here include "Social Media and Political Engagement", "The Civic and Community Engagement of Religiously Active Americans", and "The Internet and Civic Engagement".
The Polity IV dataset covers all major, independent states in the global system over the period 1800-2014 (i.e., states with a total population of 500,000 or more in the most recent year; currently 167 countries).
National exit polls consist of presidential and/or congressional vote questions in addition to questions on gubernatorial races, important issues affecting the vote decision, presidential approval and a number of current national issues.
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Constructed and maintained by the Wilson Center’s History and Public Policy Program, the Digital Archive contains newly declassified historical materials from archives around the world—much of it in translation and including diplomatic cables, high level correspondence, meeting minutes and more.