Final answer:
To calculate net exports (X-M), take the value of exports ($100 billion) and subtract the value of imports ($150 billion), which results in net exports of -$50 billion, indicating a trade deficit.
Step-by-step explanation:
The student has asked to compute net exports (X-M) using the provided GDP data. To calculate net exports, we take the value of exports and subtract the value of imports. According to the data provided, we have exports of $100 billion and imports of $150 billion.
Net exports (X-M) = Exports (X) - Imports (M)
Net exports (X-M) = $100 billion - $150 billion
Net exports (X-M) = -$50 billion.
Therefore, the correct computation of net exports is -$50 billion, which indicates that this economy has a trade deficit, as it is importing more than it is exporting.