Mercer realiza el ranking de las ciudades según su calidad de vida. en los resultados de este año, Viena está en la primera posición, seguida por Zurich y Ginebra. La primera ciudad española es Barcelona que ocupa el puesto 44. Muy cerca está Madrid en el 48.
El ranking se elabora atendiendo criterios como el entorno económico, político y social, la vivienda, servicios médicos y sanitarios, y aspectos socio-culturales de la ciudad.
El informe completo se puede consultar en el siguiente enlace:
Quality of Living Worldwide City Rankings 2010,
Ranking de Ciudades
Top 50 ciudades: Calidad de vida
Base: New York, US (=100)
| Rank 2010 | City | Country | Qol index 2010 |
| 1 | VIENNA | AUSTRIA | 108.6 |
| 2 | ZURICH | SWITZERLAND | 108 |
| 3 | GENEVA | SWITZERLAND | 107.9 |
| 4 | VANCOUVER | CANADA | 107.4 |
| 4 | AUCKLAND | NEW ZEALAND | 107.4 |
| 6 | DUSSELDORF | GERMANY | 107.2 |
| 7 | FRANKFURT | GERMANY | 107 |
| 7 | MUNICH | GERMANY | 107 |
| 9 | BERN | SWITZERLAND | 106.5 |
| 10 | SYDNEY | AUSTRALIA | 106.3 |
| 11 | COPENHAGEN | DENMARK | 106.2 |
| 12 | WELLINGTON | NEW ZEALAND | 105.9 |
| 13 | AMSTERDAM | NETHERLANDS | 105.7 |
| 14 | OTTAWA | CANADA | 105.5 |
| 15 | BRUSSELS | BELGIUM | 105.4 |
| 16 | TORONTO | CANADA | 105.3 |
| 17 | BERLIN | GERMANY | 105 |
| 18 | MELBOURNE | AUSTRALIA | 104.8 |
| 19 | LUXEMBOURG | LUXEMBOURG | 104.6 |
| 20 | STOCKHOLM | SWEDEN | 104.5 |
| 21 | PERTH | AUSTRALIA | 104.2 |
| 21 | MONTREAL | CANADA | 104.2 |
| 23 | HAMBURG | GERMANY | 104.1 |
| 24 | NURNBURG | GERMANY | 103.9 |
| 24 | OSLO | NORWAY | 103.9 |
| 26 | CANBERRA | AUSTRALIA | 103.6 |
| 26 | DUBLIN | IRELAND | 103.6 |
| 28 | CALGARY | CANADA | 103.5 |
| 28 | SINGAPORE | SINGAPORE | 103.5 |
| 30 | STUTTGART | GERMANY | 103.3 |
| 31 | HONOLULU | UNITED STATES | 103.1 |
| 32 | ADELAIDE | AUSTRALIA | 103 |
| 32 | SAN FRANCISCO | UNITED STATES | 103 |
| 34 | PARIS | FRANCE | 102.9 |
| 35 | HELSINKI | FINLAND | 102.6 |
| 36 | BRISBANE | AUSTRALIA | 102.4 |
| 37 | BOSTON | UNITED STATES | 102.2 |
| 38 | LYON | FRANCE | 101.9 |
| 39 | LONDON | UNITED KINGDOM | 101.6 |
| 40 | TOKYO | JAPAN | 101.4 |
| 41 | MILAN | ITALY | 100.8 |
| 41 | KOBE | JAPAN | 100.8 |
| 41 | YOKOHAMA | JAPAN | 100.8 |
| 44 | BARCELONA | SPAIN | 100.6 |
| 45 | LISBON | PORTUGAL | 100.3 |
| 45 | CHICAGO | UNITED STATES | 100.3 |
| 45 | WASHINGTON | UNITED STATES | 100.3 |
| 48 | MADRID | SPAIN | 100.2 |
| 49 | NEW YORK CITY | UNITED STATES | 100 |
| 50 | SEATTLE | UNITED STATES | 99.8 |
Fuente: www.mercer.com |