When goods and services are evaluated at constant prices, the measured value is known as ………….

The correct option is Real GDP.

Explanation:

Gross Domestic Product (GDP) is the total monetary value of all finished goods and services produced within a country's borders in a specific time period. There are two primary ways to measure and express GDP: nominal and real.

1. Nominal GDP: This measures the value of all goods and services produced valued at current market prices. This means it reflects changes in both actual production quantities and prices (such as inflation or deflation).

2. Real GDP: This measures the value of goods and services evaluated at constant prices (prices of a designated base year). By using constant prices, Real GDP filters out the effects of price inflation or deflation, thereby reflecting only the actual volume or quantity of production. This makes it a more accurate measure of economic growth and changes in physical output over time.

Therefore, when goods and services are evaluated at constant prices, the measured value is known as Real GDP.