一、住房消费有效需求不足的成因： 盘活存量。消化空置与增量，加强管理与服务，促进房地产二、三级市场联动，刺激国民经济可持续发展，是世纪之交规范活跃房地产市场的主旋律。１９９８年初，中央政府为保持国民经济可持续发展，推行房改新政策，使得房地产开发投资迅速增长 First, the causes of the lack of effective demand for housing consumption: revitalize the stock. To digest the vacancy and increment, to strengthen management and service, to promote the linkage between real estate secondary and tertiary markets and to stimulate the sustainable development of the national economy is the main theme of regulating the active real estate market at the turn of the century. In early 1998, in order to maintain the sustainable development of the national economy, the central government implemented a new policy of housing reform, making the investment in real estate development rapidly increase