In macroeconomics, the key difference between nominal GDP and real GDP is that real GDP:

• A. Excludes net exports while nominal GDP includes net exports
• B. Is adjusted for changes in the price level (inflation/deflation) using constant (base-year) prices
• C. Includes only government spending and excludes consumption and investment
• D. Measures production using current-year prices while nominal GDP uses base-year prices

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the definitions of nominal GDP and real GDP. Nominal GDP measures the value of all final goods and services produced within a country in a given year using current-year prices, which means it reflects both changes in quantities produced and changes in price levels (inflation or deflation).
2. Step 2: Recognize that real GDP adjusts for changes in the price level by using constant prices from a base year. This adjustment allows real GDP to measure the actual quantity of goods and services produced, isolating the effect of inflation or deflation.
3. Step 3: Note that both nominal GDP and real GDP include all components of GDP: consumption, investment, government spending, and net exports. Therefore, the difference between nominal and real GDP is not about which components are included but about price adjustments.
4. Step 4: Recall that nominal GDP uses current-year prices, while real GDP uses base-year prices to value output. This means real GDP provides a more accurate reflection of economic growth by removing the distortion caused by price changes.
5. Step 5: Conclude that the key difference is that real GDP is adjusted for changes in the price level using constant (base-year) prices, whereas nominal GDP is measured using current-year prices without adjusting for inflation or deflation.