Compare and contrasts the different measures of economic development

Economic development indicators

To assess the economic development of a country, geographers use economic indicators including:

Gross Domestic Product (GDP) is the total value of goods and services produced by a country in a year.
Gross National Product (GNP) measures the total economic output of a country, including earnings from foreign investments.
GNP per capita is a country's GNP divided by its population. (Per capita means per person.)
Economic growth measures the annual increase in GDP, GNP, GDP per capita, or GNP per capita.
Inequality of wealth is the gap in income between a country's richest and poorest people. It can be measured in many ways, (eg the proportion of a country's wealth owned by the richest 10 per cent of the population, compared with the proportion owned by the remaining 90 per cent).
Inflation measures how much the prices of goods, services and wages increase each year. High inflation (above a few percent) can be a bad thing, and suggests a government lacks control over the economy.
Unemployment is the number of people who cannot find work.
Economic structure shows the division of a country's economy between primary, secondary and tertiary industries.
Demographics study population growth and structure. It compares birth rates to death rates, life expectancy and urban and rural ratios. Many LEDCs have a younger, faster-growing population than MEDCs, with more people living in the countryside than in towns. The birth rate in the UK is 11 per 1,000, whereas in Kenya it is 40.

The answer is b) market forces