Final answer:
Gross Domestic Product (GDP) is a measure of the total monetary value of goods and services produced within a country. When calculated using the Expenditure method, it measures what is purchased and sold in the economy.
Step-by-step explanation:
Gross Domestic Product (GDP) is a measure of the total monetary value of goods and services produced within a country for a given year. When calculated using the Expenditure method, GDP measures what is purchased and sold in the economy. It is obtained by multiplying the quantities of all goods and services produced by their prices and summing the total.