To complete the sentence effectively, you might want to include economic characteristics such as:
- is more diversified
- has a larger industrial sector
- has a higher GDP
- has a significant agricultural output
- benefits from tourism
So, the completed sentence could be:
"Compared to other Southwest Asian nations, Turkey's economy is more diversified."
You can adjust this based on the specific characteristics provided in your exercise. If you can provide specific responses, I can help you choose the best fit for the sentence.