How does the eurozone compare with the USA as a possible optimal currency area (OCA)?

1. A Option A: The eurozone has a lower degree of labour mobility than the USA and labour law is much less restrictive in the eurozone than in the USA; on these measures it is hard to judge whether the eurozone is more or less likely to be an OCA than is the USA
2. B Option B: The eurozone has a higher degree of labour mobility than the USA and labour law is much less restrictive in the eurozone than in the USA; on these measures the eurozone is more likely to be an OCA than is the USA
3. C Option C: The eurozone has a lower degree of labour mobility than the USA and labour law is much more restrictive in the eurozone than in the USA; on these measures the eurozone is less likely to be an OCA than is the USA
4. D Option D: The eurozone has a higher degree of labour mobility than the USA but labour law is much more restrictive in the eurozone than in the USA; on these measures it is hard to judge whether the eurozone is more or less likely to be an OCA than is the USA

Answer checked 11 October 2026 · How we write and check questions