Eurostat is the statistical office of the European Union and collects a dizzying array statistical information on member states of the EU and other selected countries (e.g. non-EU OECD members, non-EU members in Eastern Europe). Much of their data are accessible on-line here and cover topics such as demographics, balances of payments, socio-economic indicators, and much data for sub-national regions within EU member states.
International Monetary Fund (IMF) Macroeconomic and Financial Data
The IMF's data library covers topics such as investment flows, monetary aggregates, economic output, commodity prices, exchange rates, public finances, financial institutions and markets, and both public and private debt. The available databases include the Balance of Payments Statistics, the Direction of Trade Statistics, the Government Finance Statistics, and the International Financial Statistics.
OECD iLibrary (Organization for Economic Cooperation and Development)
The OECD iLibrary is an online interface that provides full-text access to OECD studies, periodicals, and dozens of statistical databases. The topical range of the iLibrary is considerable and covers areas such as agricultural policies, environmental indicators, social expenditures, labour markets, national accounts, foreign trade and FDI, and various industry-level data. While its focus is on wealthier developed countries, the iLibrary also includes OECD reports and publications on selected non-member countries such as the BRIC countries of Brazil, Russia, India, and China. This resource is also available via Databases at Emory.
United Nations Commodity Statistics Trade Database (Comtrade)
The UN's Comtrade database is a good source for commodity-specific bilateral trade data. Users can create their own extracts of data for both value and quantity of trade using different industrial classification codes and download those extracts for later use. Comtrade now also includes data on trade in services. This resource is also available via Databases at Emory.
UNCTAD Foreign Direct Investment Statistics
The United Nations Conference on Trade and Development (UNCTAD) maintains a database on FDI statistics, including flows, stocks, and participation in international investment-related agreements. It covers the years 1970 onward and allows users to download data into Microsoft Excel. UNCTAD's World Investment Reports are another useful source for FDI flows and stocks.
World Integrated Trade Solution (WITS)
WITS is a joint undertaking of UNCTAD, the World Bank, and the World Trade Organization to integrate various databases on trade flows and trade restrictions. The WITS databases provide information on tariff schedules, non-tariff measures, and bilateral trade and tariff levels. Registration is required to use the WITS interface, but that registration is free of cost.