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（四）BBD 指标

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BBD

Tel：+86-10-8590-5019

当BBD指标线在某个水平位置反复震荡时，说明股市中多空双方力量不相上下，处于两方力量对峙中，代表着多空趋势㤇进一步确认。

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本月我们延续用机场流量分析方式对机场流量数据进行跨年度分析，比较的对象为2017年8月和2016年8月的各大机场流量数据。

图11计算了2017年10月到2018年4月城市NEI平均排名，前五名为杭州、上海、北京、广州、济南。

In summary, the population flow in China was less concentrated in eastern major cities recently and the second-tier cities in the central and western regions were attracting more people. At the same time, specific cities (especially first-tier cities) and industries relied less on non-resident working population, reflected in lowering non-resident employees ratio and Spring Festival salary premium. We conjectured that it was in part due to urbanization of rural population.

股票BBD指标有什么用？

Daily passengers outflow at major airports in the Chunyun period were used in our research. We calculated the averages of passengers outflows in 16-30 days and 1-15 days before Chinese New Year respectively and defined the difference as “Chunyun population”. The ratio of Chunyun population to daily passenger outflow was highly related to the ratio of non-resident employees since most of non-resident working population were travelling back home for holidays.

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