A leading source of statistics and documents on the United States transportation systems used for moving people and goods, and on their impacts on the economy, society and the environment.
Economic statistics of national, regional, industry, and international accounts, including gross domestic product (GDP), personal income, corporate profits, and international transaction statistics. Coverage 1929-present.
Nine major datasets from the US Census (microdata samples) and other federal agencies on education, health, environment; and even international population data.
Working papers, data, and other research conducted by hundreds of top economic scholars. Studies employ many different methods covering many economic topics. Coverage: 1920s-present.
The Inter-University Consortium for Political & Social Research (ICPSR) provides research datasets covering a wide range of social science areas. Each study's dataset provides documentation (e.g. codebook), and a bibliography of published articles that used the data. Data offered in many formats. Must create an ICPSR account to download data. Coverage: 1700s-present.