TelluBase Data Sources & Methodology

TelluBase Data Sources & Methodology

TelluBaseSM is the combination of hundreds of discrete data sources, both national and subnational. Each source is cleaned, harmonized and processed through more than 500 mathematical steps to reach the final numbers that are presented in the app. We utilize proprietary functions and statistical methods for modeling, forecasting, generating income and age distributions and incorporating adjustments like purchasing power. For questions on any specific data series or countries, reach out to info@tellusant.com.

National Population

  1. United Nations, Department of Economic and Social Affairs, Population Division (including age groupings and forecasts)
  2. National censuses where necessary

GDP, Income, Inflation, Exchange Rates

  1. International Monetary Fund
  2. World Bank
  3. OECD National Accounts
  4. United Nations
  5. ICP (International Comparison Program) for Purchasing Power Parity
  6. Forecasts from International Monetary Fund, U.S. Department of Agriculture

Income and Age Distribution

  1. World Bank, Global Consumption Database
  2. World Income Inequality Database (WIDER)
  3. World Inequality Database
  4. Select national surveys
  5. National statistics offices, where available and reliable
  1. City population from United Nations (except Europe)
  2. Subnational populations from national censuses
  3. Additional country or region-specific sources. Some examples include:
    1. OECD Regional and Metropolitan Statistics
    2. U.S. Bureau of Economic Analysis
    3. Eurostat
    4. Radboud University Global Data Lab
    5. National Bureau of Statistics of China
    6. INEGI (Mexico)
    7. IBGE (Brazil)
    8. Central Statistics Office (India)
    9. DANE (Colombia)
    10. Statistics South Africa
    11. Central Bank of Sri Lanka
    12. Statistical Bureau of Republic of China
    13. GosKomStat (Russia)
    14. Statistics offices of Abu Dhabi, Dubai, Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah and Fujairah (UAE)
    15. MICS, MPI (Congo, Dem. Rep.)
    16. Haut-Commissariat au Plan (Morocco and Western Sahara)
    17. African Development Bank

Methodology



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