论文部分内容阅读
为了考察金融危机影响下中国70个大中城市房价的波动特征及关联变化,提出采用具有准确拓扑序列的亚超度量空间方法。通过对2005年7月至2009年7月中国70个大中城市房屋销售价格指数样本的月数据进行金融危机前后对比实证,结果发现:金融危机爆发后,中国70个大中城市房价间聚集效应更加明显;房价间距离明显缩短,表明70城市房价波动的关联性提高;聚集的中心节点由二三线城市逐渐变为一线城市,使得一线城市的影响力大幅增强。虽然全球金融危机爆发,使得中国70个大中城市房价大幅降低,但其整体上仍然是相对稳定的。建议继续加大对影响力逐渐增强的一线城市房价的关注力度,建立公平合理的市场制度,防止由于“涟漪效应”出现各城市房价轮涨现象,从而构建“居者有其屋”的和谐社会。
In order to investigate the fluctuation characteristics and changes of house prices in 70 cities in China under the influence of the financial crisis, a sub-metric space method with accurate topological sequence is proposed. Through comparing the monthly data of the sample of house sales price index of 70 large and medium-sized cities in China from July 2005 to July 2009 with the comparative evidence before and after the financial crisis, it is found that after the financial crisis broke out, the aggregate effect of house prices in 70 large and medium-sized cities in China Which is more obvious. The distance between house prices is obviously shortened, which shows that the correlation between house price fluctuations in 70 cities is increasing. The center node of aggregation gradually changes from the second and third tier cities to the first tier cities, which greatly enhances the influence of the first tier cities. Although the outbreak of the global financial crisis led to a substantial reduction of house prices in 70 large and medium-sized cities in China, they are still relatively stable as a whole. It is recommended to continue to pay more attention to housing prices in first-tier cities with gradually increasing influence and to establish a fair and reasonable market system so as to prevent the rise of housing prices in cities due to "Ripple Effect Harmonious society.