Measuring Economic Performance: GDP, Price Indices, and Inflation

Vocabulary flashcards covering core macroeconomic concepts, including GDP measurement approaches, nominal versus real GDP, and price index calculations.

Aggregate measures

Measures, such as GDP, used by economists to summarize the performance of the whole economy.

Gross Domestic Product (GDP)

The market value of all final goods and services produced within a country during a specific time period.

Final goods and services

Products bought by their final user, rather than parts used to make another product.

Three methods of calculating GDP

Calculating GDP by adding up spending, production/value added, or income, all of which should give the same total.

Spending approach to GDP

The formula $GDP = C + I + G + (X - M)$, calculated as Consumption + Investment + Government purchases + Exports - Imports.

Nominal GDP

GDP measured using the prices from the year being measured, which can rise because prices or production increased.

Real GDP

GDP adjusted for price changes, which helps show changes in the amount of goods and services produced.

Economic usefulness of real GDP

It provides a clearer picture of economic growth by removing the effect of inflation.

Price index

A number that tracks the average price of a group of goods and services over time.

Inflation rate formula

$\text{Inflation rate} = \frac{\text{new index} - \text{old index}}{\text{old index}} \times 100$, which measures the percentage change in prices using a price index.