In order to separate the problem of the overall housing deficit from the problem of families with inadequate housing, policymakers need to address both supply and demand. On the supply side, urban land – with all its physical and social infrastructure – must expand quickly enough.
为了区分总体住房赤字和住房不足家庭的问题，决策者需要从供给和需求两端入手。在供给端，城市土地的扩大必须充分快——实体和社会基础设施必须跟上。在需求端，补贴应该集中于帮助家庭在整体住房市场中做出选择。