What is the DEC conversion factor?

← Data Compilation Methodology

When we convert local currency national accounts data (e.g., Gross Domestic Product) into U.S. dollars, we use the series labeled "DEC alternative conversion factor" rather than the official exchange rate. As a rule, it is the same as the official exchange rate reported in the IMF's International Financial Statistics (IFS), except where further refinements are made by World Bank staff when official exchange rates are deemed to be unreliable or unrepresentative of the effective exchange rate during a period. 

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Data Compilation Methodology

  1. Methodologies
  2. How are aggregate growth rates computed for National Accounts series?
  3. How do you derive your constant price series for the national accounts?
  4. How can I rescale a series to a different base year?
  5. What is the DEC conversion factor?
  6. What is the World Bank Atlas method?
  7. The World Bank Atlas method - detailed methodology
  8. What methods are used to calculate aggregates for groups of countries?
  9. Is all the WDI data based on calendar year or fiscal year reporting period?
  10. What are your principles governing statistical data?
  11. Data Quality and Effectiveness

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