Public Use Data on Mexican and Central American Immigration

项目总结 该提案要求为中美洲移民项目提供资金，以收集和传播高质量的 从墨西哥、萨尔瓦多、危地马拉和墨西哥经授权和未经授权移民到美国的数据 洪都拉斯。21世纪的头20年标志着墨西哥-美国移民的一个新时期。从… 2007年至2016年，估计在美国的非法墨西哥人数量从695人下降到545万人。 墨西哥-美国的移民也从基本上循环的未经授权的男子流动变成了固定的 家庭人口和越来越多的被授权的移民。因为来自墨西哥的未经授权的移民 随着移民人数的下降，来自萨尔瓦多、危地马拉和洪都拉斯的移民稳步增加。从1990年到2015年， 居住在美国的这三个国家的人数从97.5万人增加到300万人。这个 这种移民的大部分，就像墨西哥移民的早期阶段一样，是未经授权的。也类似于这种情况 在墨西哥移民中，最初主要由男性领导的移民越来越多地涉及妇女和 孩子们。继续从墨西哥和中美洲移民的可能性仍然很高。这个 中美洲移民项目将填补可用于研究这些新移民的数据中的一个重要空白 流动。本研究提供的公共使用数据可以用来描述、监测和分析水流 移民方面的发展和长期趋势，并为关于移民的新理论提供信息 儿童、妇女和家庭，以及不利气候事件、犯罪和暴力的影响。建议数 中美洲移徙项目建立在NICHD资助的许多核心研究设计特点的基础上 墨西哥移民项目，从1987年到#年，在174个墨西哥社区进行了家庭调查 2019年。它将提供在四个国家之间具有可比性和向后可比性的移民数据 根据墨西哥移民项目(MMP)在墨西哥和中部收集的40年调查数据 拉丁美洲移民项目(LAMP)向美洲移民提供了援助。中美洲移民的创新特征 项目包括：分层抽样计划，利用城市暴力和干旱程度的差异； 对美国移民样本的推荐抽样、社交媒体和电话采访的使用；平行 针对户主和配偶的问卷内容；关于家庭移徙和#年移徙的问题 儿童；关于多次越境、过境墨西哥和遭受虐待的问题；问题 关于暴力和帮派恐吓、农作物和牲畜损失以及粮食不安全；天气、气候汇编 和市政一级的凶杀案数据；汇编关于暴力、天气、气候事件的推文 和移民大篷车。

PROJECT SUMMARY This proposal requests funding for the Mesoamerican Migration Project to gather and disseminate high quality data on authorized and unauthorized migration to the U.S. from Mexico, El Salvador, Guatemala and Honduras. The first two decades of the twenty-first century mark a new period in Mexico-U.S. migration. From 2007 to 2016, the estimated number of unauthorized Mexicans in the U.S. declined from 6.95 to 5.45 million. Mexico-U.S. migration has also changed from a largely circular flow of unauthorized men to a settled population of families and increasingly authorized migrants. As unauthorized migration from Mexico has declined, migration from El Salvador, Guatemala and Honduras has steadily increased. From 1990 to 2015, the number of persons from these three countries resident in the U.S. grew from 975,000 to 3.0 million. The majority of this migration, like the earlier stages of Mexican migration, is unauthorized. Also similar to the case of Mexican migration, what started largely as male-led migration has increasingly involved women and children. The prospect for continued migration from Mexico and Central America remains high. The Mesoamerican Migration Project will fill an important void in the data available for studying these new migration flows. The public use data provided by this study can be used to describe, monitor and analyze current developments and long-term trends in migration, as well as inform new theory with respect to the migration of children, women and families, and the impact of adverse climatic events, crime and violence. The proposed Mesoamerican Migration Project builds on many of the core study design features of the NICHD-funded Mexican Migration Project which conducted household surveys in 174 Mexican communities from 1987 to 2019. It will provide migration data that is comparable across the four countries and backwardly comparable with four decades of survey data collected in Mexico by the Mexican Migration Project (MMP) and in Central America by the Latin American Migration Project (LAMP). Innovative features of the Mesoamerican Migration Project include: a stratified sampling plan that leverages municipal variation in levels of violence and drought; the use of referral sampling, social media, and telephone interviewing for U.S immigrant samples; parallel questionnaire content for household heads and spouses; questions on family migration and the migration of children; questions on multiple border crossings, transit through Mexico, and experiences of abuse; questions on violence and gang intimidation, crop and livestock loss, and food insecurity; compilation of weather, climate and homicide data at the municipal level; compilation of Twitter tweets on violence, weather, climatic events and migrant caravans.