For more than a year, The New York Times examined the influx of global cash fueling the city’s high-end real estate boom. The investigation pierced the secrecy of more than 200 shell companies that have owned condominiums at one complex, the Time Warner Center.

http://www.nytimes.com/2015/02/08/nyregion/the-hidden-money-buying-up-new-york-real-estate.html