The answer is (B) Prices doubled between year 1 and year 2.
Here's why:
- We are given that nominal GDP (which reflects current market prices) in year 1 was 1,000andinyear2itwas2,000. This signifies a doubling of the nominal GDP.
- We are also told that year 1 is the base year and that real GDP in year 2 was $1,000 (which is the same as year 1's nominal GDP). Real GDP reflects the value of goods and services produced adjusted for inflation.
Since real GDP remained constant (at $1,000) between year 1 and year 2, the increase in nominal GDP must be due to a rise in prices.
Let's calculate the GDP deflator (a measure of the price level) to confirm this:
- GDP deflator (year 2) = Nominal GDP (year 2) / Real GDP (year 2)
- GDP deflator (year 2) = 2,000/1,000
- GDP deflator (year 2) = 2
Interpretation:
- A GDP deflator of 1 in the base year (year 1) indicates the baseline price level.
- In year 2, the GDP deflator is 2. This means that prices in year 2 are double the prices in the base year (year 1).
Therefore, prices increased by 100% (doubled) between year 1 and year 2.