Affordable housing project,as an important measure to rectify the market failure and resolve the housing problems of low-income groups,is an important content of the people′s livelihood guarantee.At present,China′s affordable housing con-struction has entered the institutional orbit,with varied forms as economic housing,low-cost housing,public rental housing and capped-price housing,and the housing problem of low-income families has been solved to a certain extent.But there are still some pressing problems in it,such as vague in nature,monotonousness in supply subject and absence of competition mecha-nism.The root cause can be traced to excessive dependence on government and failure to bring the role of multi-subject as mar-ket and society into play.This paper argues that priority should be given to the effective cooperation of multiple parties of govern-ment,market and society under the guidance of multi-center governance theory.Besides,with reference to the successful mod-els of developed countries like “market—relief”,“market—welfare”and limited government regulation,we should improve comprehensively the affordable housing construction system from the supply level,supervision mechanism and financing chan-nels,to ensure the effective supply and the optimization of allocation of the housing security system.%保障性住房建设作为矫正市场失灵、解决中低收入群体住房问题的重要举措是民生保障的重要内容。经过多年的改革发展，我国保障性住房建设已经步入制度化轨道，形成了包括经济适用住房、廉租住房、公共租赁房、限价房在内的不同发展模式，在一定程度上解决了中低收入家庭的住房问题。但仍存在着性质不清晰、供给主体单一、竞争机制缺乏等突出问题，从根源上来看这些问题都是由于过分依赖政府力量，而未能发挥市场、社会等多元主体共同作用所造成的后果。本文认为应在多中心治理理论的指导下，注重政府、市场、社会等多元主体的有效合作，借鉴国外“市场———救助”“市场———福利”和政府有限管制等典型模式的经验，从供给层次、监管机制、融资渠道等方面全面完善保障性住房建设体系，实现住房保障体系的有效供给和优化配置。
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