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data cleaning

Getting to better data: who does the editing?

Markus Goldstein's picture

鉴于我们几乎每天都会看到关于移民和难民的头条新闻 社论联合国难民署报告称全世界强制性移民人数自二战以来已达到6000万,也就不足为奇了。这一数字包括国内移民、难民以及寻求避难者。

尽管很多人以难民身份迁移,但其他人则以空前增速自愿迁移。在下文中,我介绍了区域、国家和经济层面移民和难民数据的一些趋势。但首先要弄清移民与难民有何区别。

联合国难民署指出,难民系指因担心遭到迫害而被迫逃离其原籍国之人,移民则指出于就业、学习或家人团聚等原因而自愿离开其原籍国之人。移民在国外居住期间仍受到其原籍国政府的保护,而难民则缺乏其原籍国的保护。

Robustly wrong? New methods for cleaning survey data on incomes: Guest post by Martin Ravallion

Click to enlarge the infographic.Vietnam is one of the world's development success stories. It is undeniable. 

Between 1990 and 2010, Vietnam grew at an average annual rate of 7.4 percent—one of the world’s top five growth performance records, anywhere, over the same 20-year period. In the process, the incidence of poverty has declined dramatically, from 58 percent in 1993 to about 10 percent today. Nowadays Vietnam is no longer considered a low-income country: it has attained lower-middle income status.

Yet this successful economic transition has also generated a number of challenges. Chief among them is that of sustaining economic growth going forward.