Development varies at every scale; a national or regional average can hide large differences within it.
Development has several meanings: structural change in an economy or society; action intended to improve conditions, even if it fails; an achieved improvement; or conditions that enable future improvement. A new training programme is an intervention; better access to skilled work is an outcome to check. When comparing living conditions, consider income, health, education, security and services. State which dimension and indicator you use.
At the scale of macro-regions, broad patterns may appear, such as differences in average income or health between major world regions. These groupings contain diverse countries. A regional label must not turn a pattern into a claim that every country or person has the same conditions.
Compare countries within a macro-region as well. Singapore and Cambodia both belong to the syllabus's East Asia and Pacific macro-region, but have different economic structures and development indicators. Within each country, urban and rural areas, core regions and more peripheral places can also differ in jobs, infrastructure and service access.
The Human Development Index, or HDI, combines indicators of health, education and income. It is broader than income alone but remains a national summary. It does not fully describe inequality, environmental pressures or every aspect of well-being. Use an average as a starting point, then examine the distribution and the scale of the question.
Step by step
Set the scale
Decide whether the comparison concerns macro-regions, countries or places within a country.
Choose relevant indicators
Use the same definitions and observation period for the development dimensions being compared.
Look inside the average
Check differences between groups and places before generalising.
Worked example: A hidden gap
In an invented country, average household income rises while a former industrial town loses jobs and services. The national average and the local decline can both be true. They describe different scales and distributions.
Watch out for this
A high national HDI means every neighbourhood has good living conditions.
A composite national average can conceal deprivation in particular groups and places.
Check your understanding
A regional average rises while one country in the region falls behind. What follows?
- The average conceals uneven change, so country-level evidence is needed.
- Every resident of the region must have become better off.
- One of the figures must be wrong.