Global Financial Centres Index
The Global Financial Centres Index is a ranking of the competitiveness of financial centres based on over 26,000 financial centre assessments from an online questionnaire together with over 80 indices from organisations such as the World Bank, the OECD and the Economist Intelligence Unit. It is compiled and published twice a year by Z/Yen Group and sponsored by the Qatar Financial Centre Authority.
The ranking is an aggregate of indices from five key areas: people, business environment, market access, infrastructure and general competitiveness. As of March 2013, the top centres worldwide are:
Key areas 
The people index summarises the availability of a skilled workforce, the flexibility of the labour market, the quality of the business education and the skillset of the workforce. The business environment aggregates and values the regulation, tax rates, levels of corruption, economic freedom and how difficult in general it is to do business. To measure regulation an online questionnaire has been used. The market access index looks at the various equities and bonds available. The volume and value of trading but also the cluster effect of the number of different financial service companies at the location influence the index. The infrastructure index furthermost accounts to the price of real estate at the location. Other factors such as public transport have a minor impact. General competitiveness relies on more traditional economic factors as price level, quality of life and economic sentiment.
Industry sectors 
- "The Global Financial Centres Index 13". Long Finance. March 2013.