This is driving up mortgage rates after years of lower-rate policies, crushing affordability and sinking home prices in some metropolitan areas. In the note, the pair released UBS's most reading of its Global Real Estate Bubble Index. Two cities — Zurich and Tokyo — top the list and are considered to be in "bubble risk" territory by being at least 1.5 standard deviations out of their index norm (Zurich at 1.71 and Tokyo at 1.65). UBS"Such high multiples come from an excessive appreciation of housing prices in the wake of previously low interest rates," Saputelli and Holzhey said. "House prices in all these cities remain vulnerable to corrections should interest rates remain elevated for longer or continue to rise further."

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Persons: Claudio Saputelli, Matthias Holzhey, Holzhey Organizations: Federal Reserve, European Central Bank, Reserve Bank of India, Bank of England, Reserve Bank of Australia, Bank of, Central Bank of, Bank of Canada, UBS, Swiss, —, Tokyo —, Miami Locations: Bank of Korea, Central Bank of Brazil, — Zurich, Tokyo, Zurich, Munich, Frankfurt, Hong Kong, Toronto, Geneva, Los Angeles, London, Tel Aviv, Vancouver, Amsterdam, Stockholm, Paris, Sydney