Suppose the total market value of all the final goods and services produced in the country of Rushya was $8 billion in 2008 (measured in 2008 prices) and $9 billion in 2009 (measured in 2009 prices). Which of the following statements is definitely correct?

1. Production increased in Rushya between 2008 and 2009.
2. Real GDP increased in Rushya between 2008 and 2009.
3. Average price levels increased in Rushya between 2008 and 2009.
4. Whether real GDP increased cannot be determined with the information given.

Option 4 is definitely correct: Whether real GDP increased cannot be determined with the information given.

Explanation:

The information that is given only states that there has been an increase in the market value of final goods and services in two years. So, we cannot conclude that production increased in Rushya or average price levels increased there as per Option A and C respectively, because market value can be increased by both increase in production or price levels. Even Option B cannot be concluded as the real GDP is dependent on other variables as compared to the total market value.

Thus, only appropriate statement is option D: we cannot determine increase in real GDP with the given information.

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