The concept and forms of income

Income represents the reward earned from providing the services of a factor of production. It is considered a flow concept, meaning it fluctuates over time as returns to these factors change periodically.

Forms of income for different factors of production

• Labour - Income is received as wages, salaries, or bonuses.
• Land - Income takes the form of rent.
• Capital - Income is earned as interest.
• Enterprise - Income appears as profits.

The nature and sources of wealth

Wealth refers to the accumulated stock of assets that an individual or household has built up over time. These assets offer financial security and can generate ongoing income streams.

Examples of wealth assets

• Businesses
• Property
• Shares
• Gold
• Antiques

Sources of wealth in different economies

• Developing economies - Wealth often originates from business activities.
• High-income countries - Wealth is frequently inherited across generations within families.

Measuring income inequality using the Gini coefficient

The Gini coefficient provides a numerical measure of income inequality within an economy. It ranges from 0 to 1, where lower values indicate greater equality.

Interpreting Gini coefficient values

• A value of 0 represents perfect equality, with income distributed evenly among all individuals.
• A value of 1 indicates extreme inequality, where all income goes to a single person.
• Real-world values typically fall between 0 and 1, with a coefficient of 0.4 showing more equal distribution than 0.6.

Economic reasons for income and wealth inequality

Economists recognise that significant inequality in income and wealth hinders overall economic growth and development. Several structural factors contribute to disparities in income and wealth.

Key economic causes of inequality

• Lack of formal employment opportunities - Especially affects young people and those with professional skills.
• Poor vocational training - Hinders local industries from accessing skilled labour.
• Insufficient investment in education and health - Restrains the development of human capital.
• Inadequate infrastructure - Includes deficiencies in roads, railways, power, and water supplies.
• Low savings rates - Limits funding for private and public sector investments.
• Limited access to credit - Prevents individuals from financing small businesses or personal education.