The world's 12 most expensive cities

London has overtaken Hong Kong to become the most expensive city to live and work in, according to new research from Savills. The top 12 most expensive cities are:

1. London

2. Hong Kong

3. New York

4. Paris

5. Tokyo

6. Singapore

7. Moscow

8. Sydney

9. Dubai

10. Shanghai

11. Rio de Janeiro

12. Mumbai

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