xwu622 发表于 2016-9-12 22:59 
“stagnation”的定义是长期经济缓慢上行,(通常以GDP为经济增长衡量标准)。
例如维基百科给出的定义: ...
首先,这里的衡量标准不是GDP而且GDP增长率(the GDP growth)。
Economic stagnation is a prolonged period of slow economic growth (traditionally measured in terms of the GDP growth), usually accompanied by high unemployment.
其次,确切说应是实际人均GDP增长率。
Economic growth is the increase in the inflation-adjusted market value of the goods and services produced by an economy over time. It is conventionally measured as the percent rate of increase in real gross domestic product, or real GDP, usually in per capita terms.
最后,国内学术界对经济增长的衡量标准通常是实际GDP,但是外国文献当中却不采用实际GDP。原因有二,其一,实际GDP通常是非平稳的时间序列,建模比较困难,毕竟协整关系比较难找。其二,实际GDP也没有排除人口规模效应。所以通常采用实际人均GDP增长率,用该指标衡量长期经济增长。这就是为什么经济增长文献里面很纠结于推导有效人均变量的原因,我们需要有效人均变量随着时间而不断增长,变现为增长率为正数。
请问,现在有木有感觉经济下行和经济增速下行说的同一回事?