Why development differs between countries
Development means better living standards and welfare, not just more output. Countries differ because of: income (GDP per head); productivity; population growth (cuts output per head); sector structure (primary reliance adds less value than secondary/tertiary); saving and investment; and education and healthcare (raise skills, productivity, life expectancy). These interact — low income makes saving hard, keeping productivity low.
Growth vs development; how to measure it
Economic growth = a rise in real GDP (total output). Economic development is broader — rising living standards and welfare (health, education, quality of life). Development is judged by indicators: real GDP per head, life expectancy, literacy/schooling, and access to healthcare, water and sanitation. The HDI (human development index, 0–1) combines income, life expectancy and education. Growth without development occurs if extra income does not improve welfare.
Development, living standards and poverty
Differences in development show up as differences in the standard of living — the goods, services and welfare the average person enjoys. Absolute poverty = lacking the income for the basic necessities to sustain life, so it is common in less developed countries. Relative poverty = a low living standard compared with others, so it exists even in rich countries. Poorer countries tend to have lower life expectancy and literacy and more absolute poverty.
Drawn from real examiner reports.
Between countries, not between people
When a question asks why income or development differs between countries, examiners want reasons rooted in national output — education, sector structure, investment, productivity. Many candidates instead explain why individuals within a country differ (tax, income distribution). Check whether the comparison is between countries or people.
June 2023 Paper 2 Section B Q2(c): the focus was the income of countries, but many candidates wrote about income differences between individuals (e.g. tax rates and the distribution of income). Strong answers analysed national output through education, sector distribution, investment and natural resources.
The stimulus is guidance, not a limit
A Section B question opens with a short stimulus and examples. You may use it or other examples — it is guidance, not a limit. A common mistake is to answer a general question by explaining just one named country pair from the stimulus, which narrows your reasons. Give general economic reasons and use an example only to illustrate.
November 2022 Paper 2 Q5(b): asked for two reasons why some countries have a higher or lower standard of living than others; a few candidates tried to explain one named country pair (Palau versus the US) instead of giving general reasons. The stimulus is guidance, not a constraint.
Population size does not set a per-head rate
Indicators measured per person or per 1,000 (death rate, life expectancy, GDP per head) already control for population size, so citing the size of the population cannot explain them. Give factors that change output or welfare per person: healthcare, education, productivity, investment. Match the reason to what the indicator measures.
June 2023 Paper 2 Q3(a): explaining why death rates vary between countries, a common error was to cite population size; because the death rate is per 1,000 of the population, size makes no difference. Valid reasons were healthcare, standard of living, conflict and war.
Growth ≠ development
Economic growth is more output (a rise in real GDP). Economic development is higher living standards and welfare — health, education, quality of life. Do not treat them as the same: a country can grow yet develop little if the extra income is not spent on improving welfare. Use growth as one input to development, not a substitute for it.
Absolute ≠ relative poverty
Absolute poverty = lacking the means to sustain life (basic necessities). Relative poverty = a low standard of living compared with others. Absolute poverty is about surviving and is common in less developed countries; relative poverty is a comparison and exists even in rich countries. Do not define both as just "low income".
November 2022 Paper 1 Q26: absolute poverty is lacking the means to sustain life, whereas relative poverty is a low standard of living compared with others in the same society.
Explain why, do not just describe the gap
Stating that country A is richer or healthier than country B describes the gap; it does not explain it. For marks, give the economic reason — e.g. A spends more on education and healthcare, raising skills and life expectancy. Every comparison should carry a because, linking the difference to output, income or welfare per person.
The Paper 2 (a)–(d) ladder
The 0455 Paper 2 ladder: (a) define (2) — precise meaning only; (b) explain (4) — one point developed; (c) analyse (6) — a sustained one-sided chain, no evaluation; (d) discuss (8) — both sides plus a supported judgement.
Build a development chain
Develop each link, don't just state it. Spending on healthcare → more hospitals and staff → lower death rates, higher life expectancy. Spending on education → higher skills → higher productivity → higher future output. A chain beats a bare assertion.
Weigh gains against opportunity cost
In (d) discuss, set the gains from a development policy against its opportunity cost (what else the money could fund) and its time lag (education pays off slowly). A supported judgement often says the policy is necessary but works best combined with others.
Use the data in analysis
On data-response development questions, quote the figures. Support each point with a number from the source — GDP per head, life expectancy, literacy or the spending share — and explain what it shows. Using the data lifts an answer from description to analysis.
Economic growth is a rise in a country's real GDP (real gross domestic product) — more output. Economic development is broader: it means an improvement in living standards and welfare — health, education and the quality of life, not just the quantity of goods produced.
A country can grow (produce more) without much development if the extra income is not used to improve health, education and welfare for ordinary people.
The 0455 syllabus identifies several reasons:
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