Gross Domestic Product (GDP):The total monetary value of all the goods and services produced within a country's borders over a specific time period, typically a year.
Purchasing Power Parity (PPP): An economic theory that adjusts the exchange rate between countries to equalize the purchasing power of their respective currencies, allowing for more accurate comparisons of living standards across countries.
Standard of Living:The level of wealth, comfort, material goods, and necessities available to a certain socioeconomic class or a certain geographic area.