The 2013 Index of Economic Freedom relies on data from multiple sources to provide a picture of economic freedom in each country that is as comprehensive, impartial, and accurate as possible. The following sources provided the primary information for analyzing and scoring the 10 components of economic freedom. In addition, the authors and analysts used supporting documentation and information from various government agencies and sites on the Internet, news reports and journal articles, and official responses to inquiries. All statistical and other information received from government sources was verified with independent, internationally recognized sources.
- African Development Bank, Statistics Pocketbook 2012; available at http://www.afdb.org/en/knowledge/publications/the-adb-statistics-pocketbook/.
- African Development Bank and Organisation for Economic Co-operation and Development, African Economic Outlook 2012; available at http://www.africaneconomicoutlook.org/en/countries/.
- Asian Development Bank, Asian Development Outlook 2012: Confronting Rising Inequality in Asia; available at http://www.adb.org/sites/default/files/pub/2012/ado2012.pdf.
- ———, Key Indicators for Asia and the Pacific 2012; available at http://www.adb.org/sites/default/files/pub/2012/ki2012.pdf.
- Country statistical agencies, central banks, and ministries of finance, economy, and trade; available at http://unstats.un.org/unsd/methods/inter-natlinks/sd_natstat.asp; http://www.census.gov/aboutus/stat_int.html; and http://www.bis.org/cbanks.htm.
- Deloitte, International Tax and Business Guide, Country Highlights; available at http://www.deloitte.com/view/en_PG/pg/insights-ideas/itbg/index.htm.
- Economist Intelligence Unit, Ltd., Country Commerce, London, U.K., 2009–2012.
- ———, Country Finance, London, U.K., 2009–2012.
- ———, Country Report, London, U.K., 2009–2012.
- European Bank for Reconstruction and Development, Country Strategies, 2009–2012; available at http://www.ebrd.com/pages/country.shtml.
- European Commission, Eurostat, European Statistics; available at http://epp.eurostat.ec.europa.eu/portal/page/portal/statistics/themes.
- ———, Statistics in Focus: Tax Revenue in the European Union; available at http://epp.eurostat.ec.europa.eu/cache/ITY_OFFPUB/KS-SF-12-002/EN/KS-SF-12-002-EN.PDF.
- International Monetary Fund, Article IV Consultation Staff Reports, various countries, Washington, D.C., 2009–2012; available at http://www.imf.org/external/ns/cs.aspx?id=51.
- ———, Country Information; available at http://www.imf.org/external/country/index.htm.
- ———, Selected Issues and Statistical Appendix, various countries, Washington, D.C., 2009–2012.
- ———, World Economic Outlook Database, April 2012; available at http://www.imf.org/external/pubs/ft/weo/2012/01/weodata/index.aspx.
- Low Tax Network, various countries; available at http://www.lowtax.net.
- Organisation for Economic Co-operation and Development, OECD Economic Outlook, No. 91 (May 2012); available at http://www.oecd.org/document/3/0,3343,en_2649_34573_2483901_1_1_1_1,00.html.
- ———, OECD Factbook 2011–2012; available at http://www.oecd.org/site/0,3407,en_ 21571361_34374092_1_1_1_1_1,00.html.
- ———, OECD Statistics Portal; available at http://stats.oecd.org/source/.
- ———, OECD Web site; available at www.oecd.org/home.
- PricewaterhouseCoopers, Worldwide Tax Summaries; available with registration at http://www.pwc.com/gx/en/tax/corporate-tax/worldwide-tax-summaries/taxsummaries.jhtml.
- Transparency International, The Corruption Perceptions Index, Berlin, Germany, 2000–2011; available at http://www.transparency.org/policy_research/surveys_indices/cpi/2011/results.
- United Nations Conference on Trade and Development, World Investment Report 2012: Towards a New Generation of Investment Policies ; available at http://www.unctad-docs.org/files/UNCTAD-WIR2012-Full-en.pdf.
- United States Central Intelligence Agency, The World Factbook 2012; available at https://www.cia.gov/library/publications/the-world-factbook/index.html.
- United States Department of Commerce, Country Commercial Guides, Washington, D.C., 2009–2012; available at http://www.buyusainfo.net/adsearch.cfm?search_type=int&loadnav=no.
- United States Department of State, Country Reports on Human Rights Practices for 2010, released by the Bureau of Democracy, Human Rights, and Labor, April 2012; available at http://www.state.gov/g/drl/rls/hrrpt/2010/index.htm.
- ———, Investment Climate Statements: 2009–2012, released by the Bureau of Economic and Business Affairs; available at http://www.state.gov/e/eb/rls/othr/ics/.
- United States Office of Management and Budget, Historical Tables, Table 7.1—Federal Debt at the End of Year: 1940–2016; available at http://www.whitehouse.gov/omb/budget/Historicals/.
- United States Trade Representative, Office of the, 2012 National Trade Estimate Report on Foreign Trade Barriers, Washington, D.C., 2012; available at http://www.ustr.gov/sites/default/files/NTE%20Final%20Printed_0.pdf.
- World Bank, World Bank World Development Indicators Online, Washington, D.C., 2012; available at http://data.worldbank.org/sites/default/files/wdi-2012-ebook.pdf.
- ———, Country Briefs and Trade-at-a-Glance (TAAG) Tables, Washington, D.C., 2010/2011; available at http://web.worldbank.org/WBSITE/EXTERNAL/TOPICS/TRADE/0,,contentMDK:22421950~pagePK:148956~piPK:216618~theSitePK:239071,00.html.
- ———, Doing Business, 2005–2013; available at www.doingbusiness.org.
- World Trade Organization, Trade Policy Reviews, 1996–2012; available at http://www.wto.org/english/tratop_e/tpr_e/tpr_e.htm.