G33: Measuring Development
Understanding how development is measured using economic and social indicators, the Human Development Index, and the Demographic Transition Model.
📊 What is Development?
Definition: Development is the process of improvement in a country's economic and social conditions. It involves changes in wealth, health, education, and standard of living.
Development is a complex concept that cannot be measured by a single indicator. Countries are classified as:
- LICs (Low-Income Countries) - GNI per head below $1,045 (e.g. Afghanistan, Somalia)
- NEEs (Newly Emerging Economies) - Rapidly developing economies (e.g. Brazil, India, Nigeria)
- HICs (High-Income Countries) - GNI per head above $12,746 (e.g. UK, USA, Japan)
Example
China is classified as an NEE because its economy has grown rapidly since the 1980s, with an average GDP growth rate of around 9% per year between 2000 and 2019. However, regional disparities mean some areas remain much less developed.
💰 Economic Indicators of Development
Gross National Income (GNI) per Head
Definition: GNI per head is the total value of goods and services produced by a country in a year, plus income from abroad, divided by the population. It is measured in US dollars.
GNI per head = (Total GNI + Net income from abroad) ÷ Total population
GNI is often adjusted for Purchasing Power Parity (PPP) to reflect the actual buying power of income in different countries.
GNI is often adjusted for Purchasing Power Parity (PPP) to reflect the actual buying power of income in different countries.
| Country | GNI per head (USD, 2022) | Classification |
|---|---|---|
| Norway | $87,962 | HIC |
| UK | $49,240 | HIC |
| Brazil | $8,140 | NEE |
| Nigeria | $2,160 | NEE |
| Chad | $690 | LIC |
| Burundi | $240 | LIC |
Gross Domestic Product (GDP)
GDP measures the total value of goods and services produced within a country's borders in a year. Unlike GNI, it does not include income earned from overseas investments.
🏥 Social Indicators of Development
| Indicator | Definition | LIC Typical | HIC Typical |
|---|---|---|---|
| Birth rate | Number of live births per 1,000 population per year | 30-45 | 8-12 |
| Death rate | Number of deaths per 1,000 population per year | 10-20 | 8-12 |
| Infant mortality rate | Number of deaths of children under 1 per 1,000 live births | 40-80 | 2-5 |
| Life expectancy | Average number of years a person is expected to live | 50-60 | 78-84 |
| Literacy rate | Percentage of adults who can read and write | 40-70% | 99%+ |
| People per doctor | Number of people per qualified doctor | 10,000+ | 200-400 |
| Access to safe water | Percentage of population with clean water access | 40-70% | 99%+ |
Key Link: Social and economic indicators are closely connected. Higher GNI means more money for healthcare and education, which leads to lower infant mortality, higher life expectancy, and better literacy rates.
📈 The Human Development Index (HDI)
Definition: The HDI is a composite indicator created by the United Nations that combines three measures of development: GNI per head (PPP), life expectancy at birth, and mean years of schooling.
HDI = ⅓ (Health index + Education index + Income index)
Each component is scored between 0 and 1. The overall HDI is the geometric mean of the three indices.
Values above 0.800 = Very High; 0.700-0.799 = High; 0.550-0.699 = Medium; Below 0.550 = Low
Each component is scored between 0 and 1. The overall HDI is the geometric mean of the three indices.
Values above 0.800 = Very High; 0.700-0.799 = High; 0.550-0.699 = Medium; Below 0.550 = Low
| Country | HDI Score (2022) | Category |
|---|---|---|
| Switzerland | 0.967 | Very High |
| UK | 0.929 | Very High |
| Brazil | 0.760 | High |
| India | 0.644 | Medium |
| Chad | 0.394 | Low |
Why HDI is Better Than GNI Alone
Equatorial Guinea has a relatively high GNI per head ($7,480) due to oil exports, but its HDI is only 0.596 (Medium). This is because wealth from oil is concentrated among a small elite, while most people have poor access to healthcare and education. HDI reveals this inequality that GNI per head alone would miss.
🔄 The Demographic Transition Model (DTM)
Definition: The DTM describes how population changes as a country develops economically. It shows the relationship between birth rate, death rate, and total population over five stages.
| Stage | Birth Rate | Death Rate | Natural Change | Typical Countries |
|---|---|---|---|---|
| 1 (Pre-industrial) | High | High | Stable/slow growth | Remote Amazonian tribes |
| 2 (Early expanding) | High | Falling rapidly | Rapid increase | Afghanistan, Niger |
| 3 (Late expanding) | Falling | Low | Slowing increase | Brazil, India |
| 4 (Low stationary) | Low | Low | Stable | UK, France, Australia |
| 5 (Decline) | Very low | Low | Declining | Japan, Germany |
Natural population change = Birth rate − Death rate
If positive, population grows. If negative, population shrinks.
If positive, population grows. If negative, population shrinks.
Why Does Death Rate Fall First?
In Stage 2, death rates fall rapidly because:
- Improved medical care (vaccines, antibiotics, hospitals)
- Better sanitation and clean water supply
- More reliable food supply (agricultural improvements)
- Birth rates remain high due to cultural norms, lack of contraception, and high infant mortality
Why Do Birth Rates Fall Later?
In Stage 3, birth rates fall because:
- Increased access to contraception and family planning
- Women gain better education and career opportunities
- Lower infant mortality means fewer children needed
- Urbanisation makes large families economically disadvantageous
- Government policies (e.g. China's One Child Policy)
Case Study: UK Through the DTM
The UK was in Stage 1 before 1760. The Industrial Revolution brought Stage 2 (1760-1870) as death rates fell from improvements in medicine and sanitation. Stage 3 (1870-1940) saw birth rates decline with urbanisation and education. The UK has been in Stage 4 since 1940 with low birth and death rates. Some argue it is entering Stage 5 as the birth rate has fallen below replacement level (1.63 children per woman in 2022).
⚠️ Limitations of Development Indicators
| Indicator | Strengths | Limitations |
|---|---|---|
| GNI per head | Easy to calculate and compare; widely available; shows economic wealth | Hides inequality (wealth may be concentrated); doesn't reflect cost of living; informal economy not counted |
| Birth rate | Shows level of development and women's status; easy to measure | Affected by government policy (e.g. China's one-child policy); migration can distort |
| Death rate | Indicates healthcare quality; simple to understand | Affected by age structure (ageing populations have higher death rates even in HICs) |
| Infant mortality | Good indicator of healthcare and nutrition; sensitive to development changes | Hard to measure accurately in LICs where births aren't always registered |
| Life expectancy | Reflects overall health, diet, and living conditions; widely understood | Doesn't show quality of life; masks regional and gender differences |
| HDI | Composite measure (more holistic); includes health and education; UN standard | Still hides inequality within countries; doesn't include environmental factors or freedom |
Exam Tip: Always evaluate indicators - no single measure gives a complete picture. A country may have high GNI but low life expectancy (e.g. some oil-rich Gulf states with migrant worker populations), or low GNI but good social development (e.g. Sri Lanka, Kerala state in India).
🗺️ Development and the North-South Divide
The Brandt Line is an imaginary line that separates the richer "North" from the poorer "South". It was drawn in the 1980s and shows the global inequality in development.
Key Point: The Brandt Line is less relevant today because many countries in the "South" (e.g. China, Brazil, India) have experienced rapid economic growth, while some "Northern" countries have struggled. However, most LICs are still concentrated in sub-Saharan Africa and parts of South Asia.
Reasons for Uneven Development
- Physical factors: Climate (extreme heat or cold limits farming), natural hazards, landlocked position, lack of natural resources
- Economic factors: Colonial exploitation, trade patterns favouring HICs, debt, lack of investment, poor infrastructure
- Historical factors: Legacy of colonialism, conflict and war, slave trade impacts
❓ Practice Questions
Q1: Define the term 'GNI per head'.
Q2: Describe two limitations of using GNI per head as a measure of development.
Q3: Explain why the HDI is considered a better measure of development than GNI alone.
Q4: Outline the key characteristics of Stage 3 of the Demographic Transition Model.
Q5: Suggest reasons why death rates fall before birth rates as a country develops.
Q6: Compare the development indicators you would expect to find in an LIC and a HIC.
✅ Answers
- GNI per head is the total value of goods and services produced by a country plus net income from abroad, divided by the total population, measured in US dollars.
- First, GNI per head hides inequality within a country - wealth may be concentrated among a small elite while the majority live in poverty. Second, it does not account for the informal economy (e.g. subsistence farming or street trading) which is significant in many LICs and NEEs.
- The HDI is a composite measure that combines economic (GNI per head), health (life expectancy), and education (mean years of schooling) indicators. This gives a more complete picture of development than GNI alone, which only measures economic wealth. For example, Equatorial Guinea has relatively high GNI from oil but low HDI because wealth doesn't translate into better health or education for most people.
- In Stage 3, birth rates begin to fall while death rates remain low. This is due to increased access to contraception, better education (especially for women), urbanisation, and lower infant mortality. The population continues to grow but at a slowing rate.
- Death rates fall first because improvements in healthcare, sanitation, and food supply have an immediate impact on mortality. Birth rates remain high initially due to cultural norms, lack of contraception access, and because high infant mortality encourages families to have more children. It takes time for social attitudes and access to family planning to change.
- In an LIC you would expect: high birth rate (30-45), high infant mortality (40-80 per 1,000), low life expectancy (50-60 years), low literacy rate (40-70%), and low GNI per head (below $1,045). In a HIC you would expect: low birth rate (8-12), low infant mortality (2-5 per 1,000), high life expectancy (78-84 years), high literacy rate (99%+), and high GNI per head (above $12,746).
🧭 Board Focus — AQA
Spec 8035. Paper 1: Physical geography (natural hazards, the living world, UK physical landscapes). Paper 2: Human geography (urban issues, the economic world, resource management). Paper 3: Issue evaluation (pre-released booklet) + fieldwork + skills. AQA's Paper 3 is unique — study the pre-release BEFORE the exam and know your two fieldwork enquiries cold.
Always check: specification details change — confirm paper structure and set texts against the current specification for your exam year.
🎯 Exam Tips
- Always name specific indicators when discussing development - don't just say "it's more developed"
- Use data to support your answers (approximate figures for GNI, life expectancy, etc.)
- Remember that no single indicator gives a full picture - always evaluate limitations
- When describing the DTM, always refer to specific stages and explain the reasons for changing birth and death rates
- Use the terms LIC, NEE, and HIC correctly in your answers
- If asked to compare countries, use specific named examples with data
- Common error: confusing GDP and GNI - GDP is produced within borders, GNI includes income from abroad
📝 Exam Technique
Geography Exam Tips — Measuring Development:
1. For Measuring Development questions, always name specific case studies with factual detail
2. Use geographical terminology precisely (e.g. specific processes, not vague descriptions)
3. Consider social, economic and environmental perspectives in your evaluations
4. Support your points about Measuring Development with data, statistics or named examples
5. For 'assess' or 'evaluate' questions, reach a clear judgement supported by evidence
1. For Measuring Development questions, always name specific case studies with factual detail
2. Use geographical terminology precisely (e.g. specific processes, not vague descriptions)
3. Consider social, economic and environmental perspectives in your evaluations
4. Support your points about Measuring Development with data, statistics or named examples
5. For 'assess' or 'evaluate' questions, reach a clear judgement supported by evidence
⚠️ Common Errors
Watch Out!
Students often write vague answers without specific geographical evidence. Wrong: Writing generalised statements like 'it causes problems' Correct: Using specific data and named examples, e.g. 'the 2010 Haiti earthquake killed over 200,000 people due to poor building quality'
Students often confuse causes and effects. Wrong: Mixing up what caused the event with what resulted from it Correct: Clearly separate causes (why it happened) from effects (what happened as a result)
Students often describe rather than evaluate. Wrong: Listing strategies without assessing their effectiveness Correct: Weighing up strengths and weaknesses of each approach and reaching a supported judgement
✍️ Model Answer
Full-Mark Response
6 marks: Explain the key factors affecting measuring development.
Measuring Development involves multiple interconnected factors that geographers must understand. The key concepts include the processes that create and change measuring development, the impacts on both people and environment, and the strategies used to manage associated challenges. For a comprehensive answer, specific case study evidence should be used throughout, with named examples and data to support each point. Geographical terminology should be used precisely, and the interrelationship between physical and human factors should be demonstrated. Top-level responses evaluate the relative importance of different factors and consider how the situation varies between locations.
Mark scheme: 2 marks for identifying key factors, 2 marks for explaining processes with detail, 2 marks for using specific evidence
📊 AO Deep Dive
Assessment Objective Analysis
AO1 requires knowledge of the key facts and processes related to measuring development. AO2 demands understanding of how and why these processes operate, and their implications. AO3 asks you to analyse, evaluate and make judgements — this is where grade 9 answers stand out by weighing up competing perspectives and reaching supported conclusions. AO4 may involve interpreting maps, graphs or data related to this topic. To move from grade 5 to grade 9: use precise geographical terminology, support every point with specific case study evidence, and always evaluate rather than just describe.
📝 Exam Questions by Topic
🎬 Video Resources
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