To Calculate Real vs Nominal Gross Output

What Is Real vs Nominal Gross Output?

Gross output refers to the total value of goods and services produced by an economy or business. It's a fundamental measure of economic activity. The distinction between real and nominal gross output lies in how inflation is accounted for:

• Nominal Gross Output is the total value of goods and services measured at current market prices, including the effects of inflation.
• Real Gross Output adjusts nominal gross output for inflation, providing a more accurate measure of economic growth that accounts for the purchasing power of money.

Real gross output is particularly valuable for comparing economic performance over time or between different periods with different inflation rates.

How to Calculate Real vs Nominal Gross Output

The calculation of real gross output requires adjusting nominal gross output for inflation. Here's the formula:

For example, if a country's nominal GDP is $1,000 billion and the GDP deflator is 110, the real GDP would be:

Nominal gross output is simply the total value of production at current prices, without any inflation adjustments.

Key Differences Between Real and Nominal Gross Output

Understanding these differences helps economists, policymakers, and businesses make more informed decisions about economic performance and growth.

Economic Impact of Inflation on Gross Output

Inflation affects both nominal and real gross output in different ways. When inflation is high:

• Nominal gross output may appear higher due to increased prices
• Real gross output may show slower growth because the same amount of goods and services costs more

This relationship is crucial for understanding the true economic health of a country or business. For example, a business might show high nominal sales growth, but if inflation is also high, real sales growth might be much lower, indicating reduced purchasing power.

Practical Examples of Real vs Nominal Gross Output

Let's look at two scenarios to illustrate the difference between real and nominal gross output:

Example 1: Economic Growth

Suppose a country's nominal GDP grows from $1,000 billion to $1,200 billion over a year, while the GDP deflator increases from 100 to 110.

• Nominal GDP growth: $200 billion
• Real GDP growth: ($1,200 / 110) × 100 - ($1,000 / 100) × 100 = $1,090.91 - $1,000 = $90.91 billion

This shows that while nominal GDP appears to have grown significantly, real GDP growth is much lower due to inflation.

Example 2: Business Performance

A company's nominal sales increase from $50 million to $60 million over a year, while the CPI increases from 100 to 105.

• Nominal sales growth: $10 million
• Real sales growth: ($60 / 105) × 100 - ($50 / 100) × 100 = $57.14 - $50 = $7.14 million

Again, the real sales growth is much lower than the nominal growth, highlighting the impact of inflation on purchasing power.