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Glossary

106 terms defined — economic, geographic, government & more

All A B C D E F G H I J L M N O P R S T U

Parliamentary Democracy

Government

A system of government where the executive branch derives its legitimacy from the legislature (parliament) and is accountable to it. The head of government is typically a prime minister.

Example: The United Kingdom operates as a parliamentary democracy under a constitutional monarchy.

Related field: Government type

Physician Density

Demographic

The number of medical doctors per 1,000 people.

Example: Cuba has one of the highest physician densities in the world.

Related field: Physician density

Population

Demographic

The total number of people living within a country's borders. Population size affects economic output, resource needs, and political representation.

Example: India surpassed China as the world's most populous country in 2023.

Related field: Population

Population Distribution

Demographic

The pattern of where people live within a country.

Example: Australia's population is concentrated along the eastern and southeastern coasts.

Related field: Population distribution

Population Growth Rate

Demographic

The annual percentage change in population size, accounting for births, deaths, and migration.

Example: Niger has one of the highest population growth rates at over 3.5% annually.

Related field: Population growth rate

PPP (Purchasing Power Parity)

Economic

An economic theory that adjusts currency exchange rates so that an identical good in two different countries has the same price. PPP-adjusted figures allow more accurate cross-country comparisons.

Example: China's GDP is much larger when measured in PPP terms than at market exchange rates.

Public Debt

Economic

The total amount of money owed by a government to creditors, usually expressed as a percentage of GDP.

Example: Japan has one of the highest public debt-to-GDP ratios at over 250%.

Related field: Public debt

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