Why does Hong Kong have different currency?

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Tags

1. #without
2. #written
3. #separate
4. #center
5. #convertible
6. #would
7. #pegged
8. #freely
9. #dollar
10. #reason
11. #economically
12. #articles
13. #impossible
14. #currency
15. #legally
16. #mainland
17. #basic
18. #financial