JLLâs City Investment Intensity Index compares the volume of direct real estate investment over a three-year period relative to the current economic size of a city. The Index provides a measure of real estate market liquidity, as well as a useful barometer of a cityâs overall âhealthâ. It highlights cities that are punching above their weight in terms of attracting real estate investment. The latest Q1 2015 Index sees London (1st) maintain its position in the top spot in terms of real estate investment relative to city size. The Global Top 5 is completed by Munich (2nd), Oslo (3rd), Stockholm (4th) and Copenhagen (5th), tech-rich cities with a high quality of life and strong environmental credentials, factors which are increasingly being incorporated into investment strategies.