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Re:The Canadian Housing Boom Fueled by China’s Billionaires by aminok on Wednesday August 03, 2016 @08:46AM (#12217506)
They explain their methodology:

http://council.vancouver.ca/20160308/documents/rr1presentati...

Does not look easily gameable, and the authors don't strike me as being disingenuous.

Re:The Canadian Housing Boom Fueled by China’s Billionaires by caffodian on Wednesday August 03, 2016 @11:30AM (#12218649)
This piece is good also, to explain some of the limitations of the study:

http://www.theglobeandmail.com/real-estate/vancouver/poking-...