A New York Times investigation published last year found that the family had documented assets of more than $ 160 million, a conservative figure that did not include bank accounts, real estate, assets held
by proxies or other
wealth not reflected in publicly available records.
Indeed, according to a 2012 paper published in the journal Climate Change, «A Trend Analysis of Normalized Insured Damage from Natural Disasters»
by Fabian Barthel and Eric Neumayer, «[GDP] is a relatively poor
proxy for the physical
wealth stock potentially destroyable
by disasters.»