To calculate Bolivia's net exports, we need to find the difference between the value of goods and services sold abroad and the value of goods and services purchased abroad.
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Calculate net exports for goods:
- Goods sold abroad: $10 billion
- Goods purchased abroad: $40 billion
- Net exports for goods = Sold - Purchased = $10 billion - $40 billion = -$30 billion
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Calculate net exports for services:
- Services sold abroad: $25 billion
- Services purchased abroad: $20 billion
- Net exports for services = Sold - Purchased = $25 billion - $20 billion = $5 billion
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Combine the net exports for goods and services:
- Total net exports = Net exports for goods + Net exports for services = -$30 billion + $5 billion = -$25 billion
Therefore, Bolivia's net exports amount to -$25 billion.
The correct answer is: b. -$25 billion