The anti-corruption group Transparency International says more than 30 Bongo family properties in France worth nearly $200 million could not have been purchased on his state salary alone.

VOA: standard.2009.08.28

Why? Bundle of properties: mechanical strength, chemical inertness, ease of fabrication: that's not a unique solution.

为什么，属性的总和：,机械强度，化学惰性，易于制造，那不是独特的解决方法。

麻省理工公开课 - 固态化学导论课程节选

There are also some hotel investments,retail properties, smattering of industrial properties not a lot of exposure to individual houses.

也有一些酒店和商场物业投资,以及一些零散的工业物业,没有太多地投资于个人住宅

耶鲁公开课 - 金融市场课程节选

Governments may not condemn properties to promote strictly private projects, like new shopping centers.

NPR: Calif. Voters Weigh Eminent Domain Ballot Proposal

Even when the agency does not buy properties outright, it now insists on more stringent building codes and flood-mitigation efforts before insuring a property.

ECONOMIST: By flood and by fire

Another method is to swap the total return on the NCREIF index broken down by property sector, allowing investors to take a position in an alternate property sector in which they may not own properties, thus allowing investors to swap the returns from office related real estate for retail real estate.

FORBES: A Guide To Real Estate Derivatives