Bilateral international migration flow estimates

Estimates of bilateral international migration flows between 1990-1995 and 2015-2020 based on methods presented in Abel &amp; Cohen (2019).<br>See the Figshare collection for other files, including additional bilateral estimates by type of move (outward migration, return migration, and transit migration).<br>You might also be interested in files for sex-specific bilateral international migration flow estimates, provided in another Figshare collection.<br>DownloadUse the download button above for the CSV file or run the code below to directly bring into R:<code>library(readr)<br>f &lt;- read_csv("https://figshare.com/ndownloader/files/53235671")</code><br>Version DetailsUpdate of estimates of international migration flows from Abel &amp; Cohen (2019) based on the most recent published UN DESA International Migrant Stock (IMS2024) and World Population Prospects (WPP2024) data inputs. Refer to Version 1 (link above) for the estimates presented in the paper, based on WPP2017 and IMS2017.A description of the changes between each version of the estimates can be found here.<br>Data DetailsRow for each migration corridor-period combination (228 origins × 228 destinations × 4 periods + 230 origins × 230 destinations × 2 periods = 313,736).Three columns for each of the data dimensions: <code>year0</code> First year of five-year period <code>orig</code> Origin ISO three letter country code <code>dest</code>                         Destination ISO three letter country See the county list file for country names corresponding to the ISO three letter country codes.<br>Six columns of estimated flows from six different flow-from-stock estimation method: <code>sd_drop_neg</code> Stock differencing, drop negative values <code>sd_rev_neg</code> Stock differencing, reverse negative values to counterflow <code>mig_rate</code> Migration rates method <code>da_min_open</code> Demographic accounting, minimize migrant transitions (maximize stayers) - open accounting system <code>da_min_closed</code>                                           Demographic accounting, minimize migrant transitions (maximize stayers) - closed accounting system <code>da_pb_closed</code> Demographic accounting, pseudo-Bayesian average of migrant transitions and stayers - closed accounting system Refer to the published paper for detailed information on each method and usage notes.<br>

本数据集基于Abel与Cohen（2019）提出的方法，估算了1990-1995年至2015-2020年期间的双边国际移民流量。
可访问Figshare（Figshare）知识库获取其他相关文件，其中包含按迁移类型划分的额外双边移民流量估算结果，涵盖向外移民、回流移民及过境移民三类。
您亦可关注另一Figshare知识库中提供的按性别划分的双边国际移民流量估算文件。
下载方式：点击上方下载按钮获取CSV文件，或运行以下代码直接将数据导入R语言环境：
<code>library(readr)
f <- read_csv("https://figshare.com/ndownloader/files/53235671")</code>
版本说明：本数据集基于最新发布的联合国经济和社会事务部（UN DESA）国际移民存量（IMS2024）与世界人口展望（WPP2024）数据，对Abel与Cohen（2019）提出的国际移民流量估算方法进行了更新。基于WPP2017与IMS2017数据的论文版估算结果，请参阅版本1（上方链接）。
各版本估算结果的更新说明可在此处查阅。
数据详情：数据集每行对应一个移民走廊-时段组合，具体为（228个起源国 × 228个目的国 × 4个时段）+（230个起源国 × 230个目的国 × 2个时段）= 313,736条记录。
数据集包含三类数据维度字段：<code>year0</code>：五年时段的起始年份；<code>orig</code>：起源国ISO 3字母国家代码（ISO three letter country code）；<code>dest</code>：目的国ISO 3字母国家代码（ISO three letter country code）。ISO 3字母国家代码对应的国家名称，请参阅国家列表文件。
数据集包含6列基于6种不同的存量-流量估算方法得到的移民流量估算值：
<code>sd_drop_neg</code>：存量差分法，剔除负值；
<code>sd_rev_neg</code>：存量差分法，将负值转换为反向流量；
<code>mig_rate</code>：移民迁移率法；
<code>da_min_open</code>：人口统计核算（开放核算体系），最小化移民迁移量（最大化留守人口）；
<code>da_min_closed</code>：人口统计核算（封闭核算体系），最小化移民迁移量（最大化留守人口）；
<code>da_pb_closed</code>：人口统计核算（封闭核算体系），基于移民迁移与留守人口的伪贝叶斯平均法。各类方法的详细说明与使用注意事项，请参阅已发表的论文。

搜集汇总

背景与挑战

背景概述

该数据集提供了1990-2020年间全球双边国际移民流动的估计数据，涵盖多个时期和国家的流动情况，并采用六种不同的统计方法进行估计。数据基于最新的国际移民和人口统计数据，适用于人口学、经济学和社会学等领域的研究。