Why do some national data differ from data in the HDR and why does the HDR show that data is missing when data is available from national sources?
When compiling international data series, international data agencies often
need to apply internationally adopted standards and harmonization procedures to
improve comparability across countries. Where the international data are based
on national statistics, as they usually are, the national data may need to be
adjusted. Where data for a country are missing, an international agency may
produce an estimate if other relevant information can be used. And because of
the difficulties in coordination between national and international data
agencies, international data agencies may not always be in the position to
incorporate the most recent national data. All these factors can lead to
significant discrepancies between national and international estimates.
This Report has often brought such discrepancies to light. And while the Human
Development Report Office advocates for improvements in international data, it
also recognizes that it can play an active role in such efforts. When
discrepancies in data have arisen, it has helped to link national and
international data authorities to address those discrepancies. In many cases
this has led to better statistics in the Report.
If you believe that data in the most recent HDR are incorrect or missing which
should be available at the country level, please contact us and the relevant
statistical agencies (see the list
of the main data sources and their areas of focus, and the contact
information for major data agencies) to help us ensure we are using the
latest and best data available.
