A shared commons of data and tools for the United States..

From Tim Groseclose.

Multiple customized tools to gather indicators, analyze them, and export them into multiple formats..

Access to information on lending projects from 1967 up to now, the dataset includes basic information such as the project title and ID, country, sector, task manager but also, financial information, results and linksD, country, sector, task manager to publicly disclosed documents..

An African-led series of national public attitude surveys on democracy and governance in Africa.

An Archive of Administrative Agency Data from Tony Bertelli and Christian Grose..

Produces evidence to improve how sustainable development investments are targeted, monitored, and evaluated. See datasets..

AidFlows visualizes how much development financing is provided and received around the world..

Offers a measure of the political liberalism-conservatism of states, congressional districts, cities, state senate and assembly districts, and partisans within these areas.

Aims to measure the ideology of individual state legislators and state legislatures as a whole over the past several decades, state and individual-level data available..

ANES produces high quality data from its own surveys on voting, public opinion, and political participation; see Data Center for downloads.

Established in 1999 at the University of California, Santa Barbara, archives contain 103,280 documents related to the study of the Presidency..

Analysis of labor markets, social security incomes, institutions and governance..

Scientifically reliable data on the politically-relevant attitudes of ordinary citizens..

A data base on leaders 1875 - 2004..

Data and analysis source on political violence and protest in the developing world. See data page..

Comparative survey of attitudes and values toward politics, power, reform, democracy and citizens political actions in East Asia. Try online analysis tool..

Strives to democratize access to the best data on religion, now including American and international collections..

Aims to provide a long-term perspective on stability and change in the political attitudes and behaviour of the Australian electorate..

Comprehensive social science analysis of Austrian national elections..

A comprehensive dataset on authoritarian regimes in the world between 1972-2014..

Provides transition information for the 280 autocratic regimes in existence from 1946 to 2010.

A composite index of the perceived overall level of corruption in countries around the world..

Data-driven research on education and work, markets and choice, migration, democracy and autocracy, international politics and law..

The primary source for biographical information on Members of the United States Congress and Continental Congresses..

Long term studies of Britain's electoral behavior..

Useful data on America's first branch of government, including data on the composition of its membership, its formal procedure, informal norms, party structure, and staff.

Responsible for collecting and processing data for California's decennial redistricting..

Thorough account of Canadian elections..

A network of research, resource and training centers established in 2003 in the capital cities of Armenia, Azerbaijan and Georgia, see datasets..

A leading source of scholarly research and current data about women's political participation in the United States..

A leading center for the quantitative study of politics at the Univ. of Michigan..

Multiple significant datasets prepared by researchers associated with the Center for Systemic Peace and are generated and/or compiled using open source information..

At Oxford University, researching the economic and social development in Africa since 1986, includes Free and Fair Elections Database..

The goal of the CHISOLS data is to differentiate leader transitions in which a new leader depends on different social groups for support from those where the new leader depends on the same groups for support..

Estimate party positioning on European integration, ideology and policy issues for national parties in a variety of European countries..

Great resource on Congressional Committees.

Advances scholarship on international politics, security, and trade that advances peace and prosperity, maintains a suicide attack database..

standards-based quantitative information on government respect for 15 internationally recognized human rights for 202 countries.

This program analyzes how climate change could impact African and international security, see data page.

University of Illinois center supports research on variety of fronts, see projects page...

Collects and organizes data from archived sources to track policy outcomes across countries. See dataset codebooks..

Comprehensive data about the world's constitutions, download data page..

Collection of political and institutional country-level data. It consists of annual data for 36 democratic countries for the period of 1960 to 2015 or since their transition to democracy..

A collaborative program of research among election study teams from around the world..

Information about the structure and generosity of social insurance benefits in 33 countries around the world.

Uses automated coding of news reports, focusing on the Middle East, Balkans, and West Africa, for statistical early warning models to predict political change..

Site features data collected by the Congress project, as well as links to other sites providing data and information on the U.S. Congress..

Useful, basic tables on roll call votes in House and Senate (101-present).

information about more than 400,000 bills introduced in the U.S. Congress, currently 1947-2008, along with extensive information about each bill's progress and sponsor.

The data set includes a wide range of economic, social and geographic information for every U.S. congressional district, from 1943-1998..

This data set includes traditional aggregate voting scores as well as Cooper-Young structuring scores from the 40th through the 111th Congresses (1867-2009).

A repository of detailed election results at the constituency level for lower house legislative elections from around the world.

Beautiful online environment to read, search, and compare the world's constitutions.

Dataset drawn from UN Treaty Series and features a random sample of agreements across the issue areas of economics, environment, human rights and security.

The first truly large-scale academic survey project aimed at studying the midterm Congressional elections..

Aims to compile, disseminate, and encourage the use of data relevant to U.S. state policy research, tracking policy differences across and change over time in the 50 states.

COW seeks to facilitate the collection, dissemination, and use of accurate and reliable quantitative data in international relations..

Transparency International scores countries on how corrupt their public sectors are seen to be..

This page contains links to data on Cosponsorships in the U.S. Senate and U.S. House of Representatives for the 93rd to 108th Congresses..

The first global data hub on human trafficking, with data contributed by counter-trafficking organizations around the world..

This resource allows you to analyze some of the variables coded in Phase Three of the U.S. Circuit Courts of Appeals Database (2003-2010)..

Extensive coverage of many variables over time, full access requires buying license..

Provides historical maps of state boundaries and capitals in the post-World War II period..

Daily Kos Elections guide to all of their datasets..

Results of Danish general elections 1953-2015 including number of votes and number of seats in parliament.

Data from all 16 elections in the 1971-2011 period..

Seeks to define an open future for our data, for a better government and a better society, through research, education, and programming..

From Peace Research Institute Oslo..

Guide to data from more than 100 agencies that provide data and trend information on such topics as economic and population trends, crime, education, health care, energy use and more.

Institutional and electoral results data such as measures of checks and balances, tenure and stability of the government, identification of party affiliation and ideology, and fragmentation of opposition and government parties in the legislature..

A general resource for the study of campaign finance and ideology in American politics by Adam Bonica..

Data from randomized experiments in the social sciences, as well as statistical code underlying published research results, surveys and documentation..

DEDERE Project on the causes of democratic deepening and regression..

A data repository service for the social science and economic science research community from GESIS and the Leibniz-Institute for the Social Sciences..

A new instrument to measure the quality of established democracies..

Systematic data on the design of preferential trade agreements that have been signed since 1945..

Managed by Masayuki Kudamatsu.

Aims to answer some of the most important questions about the internet and politics, the DSP dataset is the product of a global survey of hundreds of country and area experts..

Chronicles historically significant events on social media..

Voting behaviour in the Dutch parliament..

Supports research that addresses global concerns including human rights, social justice, peaceful solutions to social conflicts and environmental sustainability..

From the Fraser Institute..

Thorough document from Professor Martin Feldstein, compiled by Brandon Kaplowitz..

Focus on 1950-2010.

Data on federal court litigation from 1997 to 2006, inclusive, by the Equal Employment Opportunity Commission..

Provides free access to a rich dataset of constituency election results in 110 countries and territories throughout the world..

International election data, reports on electoral systems around the world..

The ELECLAW indicators measure the degree of inclusion of the electoral franchise for three categories of potential voters or candidates: resident citizens, non-resident citizens and non-citizen residents..

Interactive Shiny app shows world map and frequencies of electoral system by decade..

Colorado State University - Pueblo.

Data on electoral volatility and its internal components in European Parliament elections in all EU countries since 1979, for both the class bloc and the demarcation bloc..

Firm-level survey of a representative sample of an economy's private sector from the World Bank..

Ranks 180 countries on 24 performance indicators across ten issue categories covering environmental health and ecosystem vitality.

Research on economic mobility, see data and replication code.

Data on ethnic groups' access to state power, their settlement patterns, links to rebel organizations, transborder ethnic kin relations, and intraethnic cleavages..

Provides access to an expanding range of data from the European Union (EU) institutions and other EU bodies..

The Standard Eurobarometer was established in 1974. Each survey consists of approximately 1000 face-to-face interviews per country. Reports are published twice yearly..

Economic indicators for Euro area..

About electoral participation and voting behavior in European Parliament elections..

Carried out every four years, this unique, pan-European survey examines both the objective circumstances of European citizens' lives and how they feel about those circumstances and their lives in general..

Datasets on political institutions, political parties, cabinets and governments in Europe..

The European Social Survey (ESS) is an academically driven cross-national survey that has been conducted across Europe since 2001. Every two years, face-to-face interviews are conducted with newly selected, cross-sectional samples..

A large-scale, cross-national, and longitudinal survey research program on basic human values..

The statistical office of the European Union situated in Luxembourg. Its mission is to provide high quality statistics for Europe..

A simple but ambitious project to collect and share data about every politician in every country in the world, in a consistent, open format that anyone can use..

From the National Archives Federal Register.

An ongoing research project about terrorist and insurgent behavior featuring several datasets..

Some of these files are very large and challenging to work with, but the FEC makes a lot of data available.

Extremely helpful resource for research on federal judges..

Extensive collection of times series economic data from U.S. and world..

Applied and policy-oriented research on labor markets, immigration and welfare systems in Europe.

A ranking of 178 countries across 12 indicators of the risks and vulnerabilities faced by individual nations, see data..

Produces data on a number of core thematic issues related to democracy, political rights and civil liberties..

Monitors broadcast, print, and web news from nearly every corner of every country in over 100 languages. Identifies the people, locations, organizations, themes, sources, emotions, counts, quotes, images and events driving our global society..

Longstanding survey about what Americans think and feel about various political issues.

A research and network initiative focusing solely on the theory and practice of de-radicalization and counter-radicalization..

Electoral data at the wahlkreis and staat levels for the Reichstag elections..

A longitudinal survey of households in Germany from 1984 to 2016. Variables include household composition, employment, occupations, earnings, health and satisfaction indicators..

national and international comparative surveys from the fields of social and political science research.

Accessible, comprehensive analysis of available data sources to answer critical questions about gig and non-traditional work in the United States..

Risk of violent conflict in the next 1-4 years, exclusively based on quantitative indicators from open sources, from European Commission..

Information on the results of both national and subnational elections around the world..

Compilation of Pew Research's public opinion surveys from around the world on a broad array of subjects ranging from people's lives to views about the current state of the world..

Measures of government integrity around the world, archived data..

Data on the evolution and devolution of media freedom in individual countries..

Data on the structure, members, budget, staff, committees and sitting days of the world's parliaments..

Compares the ideological values, policy positions, and rhetoric of political parties around the world..

Depict democratic trends at the country, regional and global levels across a broad range of different attributes of democracy in the period 1975-2015..

Developed at the GIGA German Institute of Global and Area Studies..

Open-source database including information on terrorist events around the world from 1970 through 2017, now includes more than 180,000 cases, from the National Consortium for the Study of Terrorism and Responses to Terrorism.

Track the prevalence of terms over time in books (can go back to 1800s).

From the Hertie School of Governance's Governance Report..

The site helps ordinary citizens find and track bills in the U.S. Congress and understand their representatives' legislative record..

Platform for research on economic growth and development, comprehensive databases on indicators of growth and development that the Center compiles and maintains on a regular basis..

offers a visualization of settlement patterns of politically active ethnic groups around the world from 1946-2013.

Compiled by Bureau for Research and Economic Analysis of Development..

online archive of gun violence incidents, provides near-real time data about the results of gun violence..

A leading research and policy organization committed to advancing sexual and reproductive health and rights, great source of data on policies in the United States..

The High Courts Judicial Database (HCJD) provides coded information on the content of universes or random samples of the decisions produced by eleven of the top courts of the world..

An ethnic fractionalization index for 165 countries across all continents. The dataset covers annually the period 1945-2013..

Multiple key indicatiors of voter participation at state level since 1960s and 1970s..

A non-profit, non-partisan organization that applies rigorous science to the analysis of human rights violations around the world..

Tracks the human rights performance of countries..

ICPSR maintains a data archive of more than 500,000 files of research in the social sciences, great place to start. Browse by topic..

Measures allegations of states' violations of the Convention Against Torture published by Amnesty International (AI) during the years 1995 to 2005..

A public access repository for publishing research data from the University of Illinois at Urbana-Champaign.

A range of time series data on IMF lending, exchange rates and other economic and financial indicators..

A set of sophisticated quantitative indices to measure immigration policies in all OECD countries and for the time period 1980-2010.

From the Mo Ibrahim Foundation..

Used by Government of India, its ministries and departments to publish datasets, documents, services, tools and applications for public use..

State-level data from India compiled by the Economic Organisation and Public Policy Programme at the LSE..

Measured related to sustainable democracy worldwide.

An independent population health research center at UW Medicine, part of the University of Washington.

Work includes British Household Panel Survey..

Research and other initiatives related to the theme of citizenship in its legal, political, and social dimensions.

From Aljaz Kuncic, covers 1990 - 2010.

contains information on de jure institutional provisions, electoral procedures, and electoral events for 170 countries in the period 1960-2012.

The world's leading source of labor statistics..

Seeks to provide a public good to the field by standardizing and merging together variables from 89 IPE data sources into a single dataset..

A comprehensive, integrated, automated, generalizable, and validated system to monitor, assess, and forecast national, sub-national, and internal crises from Lockheed-Martin..

The IPU facilitates parliamentary diplomacy and empowers parliaments and parliamentarians to promote peace, democracy and sustainable development around the world..

A cross-national collaboration program conducting annual surveys on diverse topics relevant to social sciences..

A continuous program of cross-national collaboration running annual surveys on topics important for the social sciences.

Census and survey data from around the world integrated across time and space..

This Harvard project is a vast repository for social data, seach network and see new releases, also features authoring tools to publish data.

Aims to investigate voting patterns, public opinion, and political participation in Israel..

A research project that is collecting systematic data on contentious issues in world politics..

Conducts repeated social surveys to study the attitudes and behavior of Japanese people comprehensively..

From the University of South Carolina, easy to navigate site contains key datasets for judicial behavior research.

Very large collection of datasets on varied topics, used for data science and machine learning..

Measures the three main dimensions of globalization: economic, social, and political..

Extensive economic research, including Globalization Index..

Detailed information on the magnitude and location of events of one-sided violence in 20 civil wars.

Carries out surveys of public opinion in Latin America, include Americas Barometer survey..

Annual public opinion survey that involves some 20,000 interviews in 18 Latin American countries. Try online data analysis..

precise research methodology to calculate a Legislative Effectiveness Score for each member of the House of Representatives.

Political, sociodemographic, and Wikipedia-related data on elected politicians across the globe for R environment..

From European Bank for Reconstruction & Development.

A data archive and research center dedicated to cross-national analysis, home to two databases: Luxembourg Income Study and Luxembourg Wealth Study..

Datasets on the lobbying activities of major companies..

The LISS panel (Netherlands) has been in full operation since October 2007, and all data are made available through the LISS data archive..

National study on the thinking and life experiences of Generation X..

An active research hub in international macroeconomic and financial history, features Jorda-Schularick-Taylor Macrohistory Database..

Estimates of economic growth in the world economic between AD 1 and 2010.

Provides the scientific community with parties' policy positions derived from a content analysis of parties' electoral manifestos..

Contains the so-called "Martin-Quinn" measures of judicial ideology..

Sub-national data on mass mobilization events in autocracies worldwide..

An effort to understand citizen movements against governments. The MM data cover 162 countries between 1990 and 2018..

The data allow for comparison of MEPs' views with those of the EU public, European Parliament candidates, and members of national and regional parliaments in Europe..

An open, free-to-use, searchable research data repository, which enables researchers to make their research data publicly available..

An archival source for the study of the political, social and cultural aspects of the independence movement in Mexico, from the Univ. of Toronto..

Government data in a wide range of categories..

A unique access point to timely, comprehensive migration statistics and reliable information about migration data globally..

Contains consistent time series on the military spending of countries, updated annually..

Maintains data on 284 politically active ethnic groups. The centerpiece of the project is a dataset that tracks groups on political, economic, and cultural dimensions..

Helpful site from Missouri for advanced analysis of Census data.

Supports advances in election science by collecting, analyzing, and sharing core data and findings..

Aggregates over 1 million Americans' responses to the 'Most Important Problem' question using survey data from 1939-2020..

Information about multiculturalism policies in a standardized format that aids comparative research and contributes to the understanding of state-minority relations.

Includes macro-level economic data, industrial data, finance, individual-level surveys, health care, and vital statistics..

NCSL research and special features contain a wealth of informatiom about state legislatures.

Detailed information on all election events from 1945-2012..

Collects and archives key national data..

Data on student registration and voting rates, and an examination of campus climate for political learning and engagement..

Britain's largest independent social research agency, features British Social Attitudes Data..

Britain's largest independent social research agency..

Serves as a broker between a range of data providers and the research community..

Archives and disseminates data on crime and justice for secondary analysis. The archive contains data from over 2,700 curated studies or statistical data series..

The primary federal entity for collecting and analyzing data related to education.

Publishes among other things, legislator and lobbyist effectiveness rankings..

Searchable collection of election returns from the earliest years of American democracy..

A data management tool for creating data sets for use in the quantitative analysis of political science, primarily international relations..

Extensive macro data about Nigeria.

A multi-level data collection effort that catalogues major nonviolent and violent resistance campaigns around the globe from 1900-2013..

The attitudes, values and beliefs of the people in Northern Ireland to a wide range of social policy issues..

One of the largest archives for research data of its kind, includes the European Election Database..

Dedicated to supporting the research endeavors of the UNC community and beyond, see data archive..

A comprehensive analysis and survey that evaluates whether governments give the public access to budget information and opportunities to participate in the budget process at the national level..

A consortium committed to facilitating the development, adoption and analysis of social and political event data..

Accessible repository of behavioral health and social science research data..

exploring roboethics questions in the domain of self-driving vehicles, care robots, and lethal autonomous weapons systems, see its unique archive of public opinion polls..

A collection of tools that make it possible for citizens to track what is happening in their state's capitol by aggregating information from all 50 states, Washington, D.C., and Puerto Rico..

Research and data to make progress against the world's largest problems..

Aims to track and compare government responses to the coronavirus outbreak worldwide rigorously and consistently..

A data infrastructure for political science and contains information for all EU and most OECD democracies..

Links to datasets on political parties, an online platform about parties and their history..

Data on government formation and party system institutionalization in all 48 European democracies, from the Second French Republic, through wars and crises, all the way up to the present moment..

Tracks the implementation of 51 different types of provisions..

database with information on relative levels of income, output, input and productivity, covering 182 countries between 1950 and 2014.

Organized by survey, each dataset is identified by the name of the survey..

Track key national, political, economic and demographic trends over time..

To help everyone understand the ads they see online, this report from Google includes information about verified advertisers, spending on ads related to elections..

Dataset by Witold Henisz at Wharton.

Captures election results, national referenda, changes in government, and institutional reforms for a range of countries, within and beyond the EU..

Focused on the House of Representatives.

Measures levels of political violence and terror that a country experiences in a particular year based on a 5-level "terror scale" originally developed by Freedom House..

Compiled by Princeton University's Politics Librarian.

From The Center for Systematic Peace..

British opinion polls database from 1943-today, from Mark Pack..

A large online database of public opinion polls..

From the National Bureau of Economic Research..

Explores the impact of the president on legislators' voting and position taking, on their communications with constituents, on their legislative strategies, and ultimately, on the substance of legislation..

Research on the effects of gerrymandering in the U.S..

Data collection in more than 80 electoral democracies. The expert surveys for data collection were done in 2008 and 2009..

A nonprofit, nonpartisan organization dedicated to conducting independent research at the intersection of religion, culture, and public policy..

QDR selects, ingests, curates, archives, manages, durably preserves, and provides access to digital data used in qualitative and multi-method social inquiry..

Research on the causes, consequences and nature of good government, see data download page..

Collection of links to biggest data-producers, esp. economic and demographic data from governments.

Resource designed to be used by voters, community groups, activists, and lawyers to help fully enfranchise voters of color in local government..

Event data on political and social events around the globe, along with the software and methodology needed to analyze the data..

Super diverse collection of datasets, unusual, interesting subjects, some related to politics.

A platform to share digitised individual refugee data obtained from publicly held records as originally recorded by the Office of Refugee Resettlement..

A set of measures that systematically gauge the intersection between government and religion. Specifically, it examines government religion policy. .

More than public opinion surveys, but public opinion surveys are biggest category of religious data.

Features annual World Press Freedom Index.

Monitors the distribution of the diplomatic apparatus of emerging powers across the globe..

Public opinion surveys from U.S. and around the world..

Extensive collection of datasets for researchers. .

A collection of sophisticated school finance measures for assessing the adequacy and fairness of each state's revenue, spending, and resource allocation, and for comparing these outcomes between states..

Measures reports of the conflict-related sexual violence committed by armed actors (state forces, pro-government militias and rebel groups) during the years 1989-2009..

Dedicated to building knowledge on the evolving nature of security and diplomacy to better address pressing global issue, see data downloads page.

Features data on arms transfers, multilateral peace operations, military expenditures, arms industry, and other topics..

Open source software that harvests social media data and web resources from Twitter, Tumblr, Flickr, and Sina Weibo. It empowers researchers, faculty, students, and archivists to define and create collections of data..

Comparative data on social rights and duties of citizens.

Goal of project is to maximize the comparability of income inequality data while maintaining the widest possible coverage across countries and over time..

This dataset gives a score from 0 to 50 for the presence of a supra-tribal polity within the present-day boundaries of each of 149 countries..

From the Kaiser Family Foundation..

A compilation of many state-to-state relational variables, including measures of shared borders, travel and trade between states, and demographic characteristics of state populations..

Examines public attitudes toward freedom of speech, press, religion and the rights of assembly and petition..

State and Local Public Policies in the United States is an ongoing research project and data compendium. On this website you can download spreadsheets containing data on state policies..

Data on people, economy, and living conditions..

This page contains links to two sets of data on citations in the U.S. Supreme Court from the U.S. Reports..

the definitive source, contains over two hundred pieces of information about each case decided between 1946 and 2012..

Programs for the documentation and Web-based analysis of survey data, including ANES and GSS..

Panel data on health, socio-economic status and social and family networks of more than 120,000 individuals aged 50 or older..

Facilitates access to new and existing Swedish research data..

Aims to explain why people vote as they do and why an election ends in a particular way. .

A continual large-scale survey research project that integrates several election-oriented face-to-face surveys in Taiwan..

Information on the use of temporary trade barriers by 30 countries since the 1980s..

Stands for temporally extended, regular, reproducible international event records, is a new machine coded event dataset ranging from 1979 to 2016..

Publishes three to four statewide public opinion polls each year to assess the opinions of registered voters on upcoming elections, public policy, and attitudes towards politics, politicians, and government..

Offers researchers the opportunity to capture the internal validity of experiments while also realizing the benefits of working with a large, diverse population of research participants..

Data on immigration court actions, deportations..

data on three primary transitional justice mechanisms - human rights prosecutions, truth commissions, and amnesties - for 109 democratic transitions in 86 countries around the world, from 1970-2012..

A suite of measures of government corruption..

Promotes data-driven research, policy work and journalism on India's political life by producing and disseminating in open access scientifically collected and treated political data..

an information source for the United States electoral system..

A multi-dimensional picture of U.S. foreign assistance..

From the Office of the Clerk, official vote counts in congressional elections since 1920.

UC Berkeley's principal archive of digitized social science data and statistics, part of the new UC Berkeley's Social Science Data Lab..

A dataset of armed conflicts, both internal and external, in the period 1946 to the present..

Includes major UK government-sponsored surveys, cross-national surveys, longitudinal studies, UK census data, international aggregate, business data, and qualitative data..

Understanding Society is the largest longitudinal household panel study of its kind and provides vital evidence on life changes and stability. See data and documentation..

Detailed global trade data. UN Comtrade is a repository of official international trade statistics and relevant analytical tables..

Maintains the International Database on Corruption Damage Reparation and Legal Standing for Victims of Corruption..

Provides economic analysis and policy advice with the aim of promoting sustainable and equitable development for all, see datasets.

Compiles and disseminates global statistical information.

Information source for the United States electoral system; great data on voter turnout..

The world's main provider of data on organized violence and the oldest ongoing data collection project for civil war, with a history of almost 40 years..

Collects and organizes data from various archived sources to trace changes in the national policy agenda and public policy outcomes of the United States since the Second World War..

With some cool visualizations of the data..

Aims to produce better Indicators of Democracy..

From the U.S. Senate library.

Compiled by the Brookings Institution.

From the International Institute for Democracy and Electoral Assistance (IDEA).

Allows users to view every congressional roll call vote in American history on a map of the United States and on a liberal-conservative ideological map..

Keith Poole's web site for data on U.S. Congress, well-organized, thoroughly documented, updated frequently..

Provides a data-based overview of EU politics..

seeks to develop better voting technologies, to improve election administration, and to deepen scientific research in these areas.

Online, up-to-date labor market data..

Tracks and analyzes all broadcast advertisements aired by or on behalf of federal and state election candidates in every media market in the country, data access..

A database of who governs in Europe and beyond..

Free and open access to global development data.

The data catalog is a listing of available World Bank datasets, including databases, pre-formatted tables, reports, and other resources..

Archive of research findings on subjective enjoyment of life.

A queryable data resource for comparative and international political economy..

Aims to provide open and convenient access to the most extensive available database on the historical evolution of the world distribution of income and wealth.

Allows users to access and retrieve information on trade and tariffs, from the World Bank..

An independent, multidisciplinary organization working to create knowledge, build awareness, and stimulate action to advance the rule of law worldwide..

The WTI seeks to create a comprehensive database of all known bilateral and multilateral treaties formed throughout the 20th century..

The WVS consists of nationally representative surveys conducted in almost 100 countries which contain almost 90 percent of the world.

From the World Bank..

A repository of micro-level, subnational event data on armed conflict and contention around the world..

Not limited to political science data, try keywork searching or communities to find relevant datasets.