收缩期

• And form the fluctuation of real estate industry itself , it has such characters : the cycle length is very anomalous , the frequency of issue is high ; the fluctuation range is wide ; there are two kinds of cycle styles , classic style and development style , the ratio of expand and contract is low
  而就房地产业自身的波动状况来看，它呈现以下状态特征：周期长度极不规则，发生频率高；波动幅度大：存在古典型和增长型两种不同的周期类型以及扩张期与收缩期比值低的特点。