They're always the same reasons: - Properties in world-class cities are in demand globally - NIMBYism means it's hard to build new housing or increase density

They're always the same reasons: - Properties in world-class cities are in demand globally - NIMBYism means it's hard to build new housing or increase density - Resource costs and wages are high in world-class cities The first one is a demand-side driver, the last two are supply-side drivers. There aren't any palatable solutions to reduce the impact of these drivers, at least not ones that do not negatively impact other sectors of the economy.