Inside the city there were new large apartment block, shopping malls and a renovated tram system filled with riders.

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He says there is "soft data" in the form of surveys and interviews that suggests buildings that adhere to feng shui principles make their occupants happier -- be it a shopping mall, office block or a hospital.

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Except in Portland and Minneapolis, each local government is free to make its own decisions about whether to permit the building of a new office block or shopping mall, regardless of any cost the decision imposes on neighbours.

ECONOMIST: Urban sprawl