Even going to quantify, and it is more complex than the Expos (which in recent years have been the engine of regeneration and urban development operations, such as MIND in Milan, Ed.), what are the infrastructural legacies, sports equipment, Olympic villages. Also remembering that sports infrastructures are not yet an asset class , a sector of the real estate market - as they are the residential sector , logistics, offices etc. - which catalyzes the interest of investors based on the ability to generate value.