Characteristics of Countries At Different Levels of Development (Copy)

11.4.1 Population Growth and Structure

Measurement and Causes of Changes in:

• Birth Rate:
  • Number of live births per 1,000 people per year.
  • Influenced by:
    • Cultural factors (religion, traditions favoring large families).
    • Economic factors (cost of raising children, employment opportunities).
    • Education and awareness (especially female education).
    • Access to contraception and family planning services.
    • Government policies (pro-natalist or anti-natalist).
• Death Rate:
  • Number of deaths per 1,000 people per year.
  • Influenced by:
    • Healthcare quality and accessibility.
    • Nutrition and sanitation.
    • Disease prevalence and control measures.
    • Natural disasters and conflicts.
• Infant Mortality Rate:
  • Number of deaths of infants under one year old per 1,000 live births.
  • A key indicator of healthcare, nutrition, and living conditions.
• Net Migration:
  • Difference between immigrants and emigrants per 1,000 population.
  • Influenced by:
    • Economic opportunities abroad.
    • Political stability and conflict.
    • Environmental factors and natural disasters.

Optimum Population

• The population size that maximizes living standards by balancing resources and labour availability.
• If population too low: labour shortages and underutilisation of resources.
• If too high: unemployment, resource depletion, and lowered living standards.
• Optimum population depends on natural resources, technology, and economic policies.

Level of Urbanisation

• Percentage of total population living in urban areas.
• Developed countries: High urbanisation (often over 70-80%) due to industrialisation and services sector.
• Developing countries: Rapid urbanisation but many live in informal settlements/slums.
• Least Developed Countries: Lower urbanisation but increasing rapidly; challenges with infrastructure.
• Urbanisation drives economic growth but creates challenges: housing, pollution, infrastructure demand.

11.4.2 Income Distribution

Lorenz Curve Analysis

• Lorenz Curve:
  • Graphical representation of income or wealth distribution within a country.
  • Plots cumulative percentage of income earned against cumulative percentage of population, ordered from poorest to richest.
  • The 45° line represents perfect equality.
• Interpretation:
  • The more the curve bows away from the 45° line, the greater the inequality.

Gini Coefficient

• Definition:
  • Numerical measure of inequality derived from the Lorenz curve.
  • Calculated as the ratio of the area between the Lorenz curve and the line of equality (A) to the total area under the line of equality (A + B).
• Formula:
  Gini Coefficient = A ÷ (A + B)
• Values:
  • 0 = perfect equality (everyone has same income).
  • 1 = perfect inequality (one person has all income).
• Use:
  • Compare income inequality across countries and over time.

11.4.3 Economic Structure

Employment Composition: Primary, Secondary, and Tertiary Sectors

• Primary Sector:
  • Agriculture, fishing, mining, forestry.
  • Dominant in low-income countries.
  • Provides raw materials; employment is often high but productivity low.
• Secondary Sector:
  • Manufacturing, construction, industrial production.
  • Growth marks industrialisation and economic development.
  • Higher productivity and wages than primary sector.
• Tertiary Sector:
  • Services such as education, healthcare, finance, retail, government.
  • Dominant in developed economies.
  • Employment in services increases with development.
• Structural Change:
  • Development often accompanied by decline in primary sector employment and growth in secondary and tertiary sectors.

Pattern of Trade at Different Levels of Development

• Developing Countries:
  • Export primarily primary commodities (agricultural products, minerals).
  • Import manufactured goods and technology.
  • Vulnerable to commodity price volatility and terms of trade deterioration.
• Developed Countries:
  • Export manufactured goods and services.
  • Import raw materials and commodities.
  • Trade more diversified and value-added products.
• Middle-Income Countries:
  • Often become manufacturing exporters (e.g., China, Mexico).
  • Transition from primary goods exporters to industrial exporters.

Expanded Explanations and Examples

• Population Growth:
  • Countries like Nigeria have high birth rates and declining death rates, leading to rapid population growth.
  • Japan faces low birth rates and an ageing population, causing population decline and labour shortages.
• Urbanisation:
  • Mumbai (India) is an example of rapid urbanisation with significant slum populations.
  • In contrast, New York City has high urbanisation with well-developed infrastructure.
• Income Distribution:
  • South Africa shows one of the highest Gini coefficients, indicating extreme inequality.
  • Scandinavian countries have low Gini coefficients, reflecting more equal income distribution.
• Economic Structure:
  • Ethiopia’s economy is predominantly primary sector.
  • Germany’s economy is dominated by secondary and tertiary sectors.
• Trade Patterns:
  • Venezuela relies heavily on oil exports (primary commodities).
  • Germany and Japan export cars and machinery (manufactured goods).

Diagrams

Diagram 1: Population Growth Components

Population Growth = Birth Rate - Death Rate + Net Migration

↑ Birth Rate ↓ Death Rate → Population Growth ↑

Net Migration ↑ → Population Change ↑

Diagram 2: Lorenz Curve and Gini Coefficient

Income Share (%)
↑
|         ••••••••••••••••••••••  
|        •                     •  
|       •                      •  
|      •                       •  
|     •                        •  
|    •                         •  
|___•__________________________•_________→ Population (%)

- Line of equality is 45°
- Area between line and curve = A
- Total area under line = A + B
- Gini = A/(A + B)

Diagram 3: Employment by Sector Over Development

Employment %
↑
| Primary Sector ↓
| Secondary Sector (rise then fall)
| Tertiary Sector ↑
|____________________________→ Level of Development

Diagram 4: Trade Patterns by Development Level

Exports (%)
↑
| Developed Countries: Manufactured Goods ↑
| Developing Countries: Primary Commodities ↑
| Middle-Income Countries: Manufacturing ↑
|_________________________________________→ Level of Development

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change A2 Level Economics Full Scale Course