Forskning viser, at der er signifikante økonomiske fordele for migranterne selv og for det land der modtaget migranterne.<ref name=":7">{{Cite journal|last1=di Giovanni|first1=Julian|last2=Levchenko|first2=Andrei A.|last3=Ortega|first3=Francesc|date=1. februar 2015|title=A Global View of Cross-Border Migration |journal=Journal of the European Economic Association|volume=13|issue=1|pages=168–202|doi=10.1111/jeea.12110|issn=1542-4774|hdl=10230/22196|s2cid=3465938|url=http://www.fordschool.umich.edu/rsie/workingpapers/Papers626-650/r627.pdf|hdl-access=free}}</ref><ref name="Andreas">{{Cite journal|last1=Andreas|first1=Willenbockel, Dirk|last2=Sia|first2=Go, Delfin|last3=Amer|first3=Ahmed, S.|date=11. april 2016|title=Global migration revisited : short-term pains, long-term gains, and the potential of south-south migration|url=http://documents.worldbank.org/curated/en/2016/04/26208170/global-migration-revisited-short-term-pains-long-term-gains-potential-south-south-migration}}</ref><ref>{{Cite web|url=http://www.cream-migration.org/publ_uploads/CDP_24_16.pdf|title=The Gain from the Drain - Skill-biased Migration and Global Welfare}}</ref><ref name=":1">{{Cite journal|last1=Khanna|first1=Gaurav|last2=Morales|first2=Nicolas|date=30. april 2017|title=The IT Boom and Other Unintended Consequences of Chasing the American Dream|location=Rochester, NY|ssrn=2968147}}</ref><ref name=":4">{{Cite journal|last=Hillel |first=Rapoport|date=20. september 2016|title=Migration and globalization: what's in it for developing countries?|journal=International Journal of Manpower|volume=37|issue=7|pages=1209–1226|doi=10.1108/IJM-08-2015-0116|issn=0143-7720|hdl=10419/145243|s2cid=4931047|hdl-access=free}}</ref> Effekten på oprindelseslandet er mindre ligetil at beskrive, men noget forskning tyder på, at det kan være positivt,<ref name=":10">{{Cite journal|last=Abarcar|first=Paolo|last2=Theoharides|first2=Caroline|date=2021|title=Medical Worker Migration and Origin-Country Human Capital: Evidence from U.S. Visa Policy|url=https://doi.org/10.1162/rest_a_01131|journal=The Review of Economics and Statistics|doi=10.1162/rest_a_01131|issn=0034-6535}}</ref><ref name="Shrestha 495–521">{{Cite journal|last=Shrestha|first=Slesh A.|date=1. april 2016|title=No Man Left Behind: Effects of Emigration Prospects on Educational and Labour Outcomes of Non-migrants |journal=The Economic Journal|volume=127|issue=600|pages=495–521|doi=10.1111/ecoj.12306|s2cid=154362034|issn=1468-0297}}</ref><ref name="Beine 631–652">{{Cite journal|last1=Beine|first1=Michel|last2=Docquier|first2=Fréderic|last3=Rapoport|first3=Hillel|date=1. april 2008|title=Brain Drain and Human Capital Formation in Developing Countries: Winners and Losers |journal=The Economic Journal|volume=118|issue=528|pages=631–652|doi=10.1111/j.1468-0297.2008.02135.x|issn=1468-0297|hdl=2078.1/5768|s2cid=28988486|url=http://sites.uclouvain.be/econ/DP/IRES/2006-23.pdf}}</ref><ref name="Dinkelman 2016 1–35">{{Cite journal |first1=Taryn |last1=Dinkelman |first2=Martine |last2=Mariotti |year=2016 |title=The Long-Run Effects of Labor Migration on Human Capital Formation in Communities of Origin |journal=American Economic Journal: Applied Economics |volume=8 |issue=4 |pages=1–35 |doi=10.1257/app.20150405 |s2cid=5140105 |url=http://www.nber.org/papers/w22049.pdf }}</ref><ref name="Batista 32–45">{{Cite journal|last1=Batista|first1=Catia|last2=Lacuesta|first2=Aitor|last3=Vicente|first3=Pedro C.|date=1. januar 2012|title=Testing the 'brain gain' hypothesis: Micro evidence from Cape Verde |journal=Journal of Development Economics|volume=97|issue=1|pages=32–45|doi=10.1016/j.jdeveco.2011.01.005|hdl=10419/44193|s2cid=4489444|hdl-access=free}}</ref><ref name="cgdev.org">{{Cite web|url=http://www.cgdev.org/publication/skilled-emigration-and-skill-creation-quasi-experiment-working-paper-152|title=Skilled Emigration and Skill Creation: A quasi-experiment - Working Paper 152|access-date=2016-07-03}}</ref><ref>{{Cite journal|last1=Donovan|first1=Jean |last2=Averett|first2=Susan|last3=Stifel|first3=David|date=2021-07-21|title=International student-migrant flows and growth in low- and middle-income countries: brain gain or brain drain?|url=https://doi.org/10.1080/00036846.2021.1886237|journal=Applied Economics|volume=53|issue=34|pages=3913–3930|doi=10.1080/00036846.2021.1886237|s2cid=233812338|issn=0003-6846}}</ref> negativ<ref>{{Cite journal|last=Collier|first=P.|date=2004-12-01|title=Africa's Exodus: Capital Flight and the Brain Drain as Portfolio Decisions|url=https://doi.org/10.1093/jae/ejh042|journal=Journal of African Economies|volume=13|issue=suppl_2|pages=ii15–ii54|doi=10.1093/jae/ejh042|issn=1464-3723}}</ref><ref name=":6">{{Cite journal|last1=Bhargava|first1=Alok|last2=Docquier|first2=Frédéric|date=2008-01-01|title=HIV Pandemic, Medical Brain Drain, and Economic Development in Sub-Saharan Africa|url=https://doi.org/10.1093/wber/lhn005|journal=The World Bank Economic Review|volume=22|issue=2|pages=345–366|doi=10.1093/wber/lhn005|issn=1564-698X|hdl=10986/4483|hdl-access=free}}</ref><ref>{{Cite journal|last=Quamruzzaman|first=Amm|date=december 2020|title=Exploring the Impact of Medical Brain Drain on Child Health in 188 Countries over 2000–2015|journal=Societies|language=en|volume=10|issue=4|pages=73|doi=10.3390/soc10040073|doi-access=free}}</ref><ref>{{Cite journal|last=Chibango|first=Conrad|date=2013-06-01|title=Zimbabwe's Medical Brain Drain: Impact Assessment on Health Service Delivery and Examination of Policy Responses: A Literature Review|journal=European Journal of Sustainable Development|volume=2|issue=2|pages=43–58|doi=10.14207/ejsd.2013.v2n2p43|issn=2239-5938|doi-access=free}}</ref><ref>{{Cite journal|last=Heuer|first=Nina|date=2011|title=The Effect of Occupation-Specific Brain Drain on Human Capital|url=https://publikationen.uni-tuebingen.de/xmlui/handle/10900/47844|language=en}}</ref> eller en blanding.<ref>{{Cite journal|last1=Docquier|first1=Frédéric|last2=Rapoport|first2=Hillel|date=2009-12-01|title=Documenting the Brain Drain of "La Crème de la Crème"|url=https://www.degruyter.com/document/doi/10.1515/jbnst-2009-0603/html|journal=Jahrbücher für Nationalökonomie und Statistik|language=de|volume=229|issue=6|pages=679–705|doi=10.1515/jbnst-2009-0603|s2cid=55779929|issn=2366-049X}}</ref><ref>{{Cite journal|last1=Li|first1=Xiaoyang|last2=McHale|first2=John|last3=Zhou|first3=Xuan|date=2017|title=Does Brain Drain Lead to Institutional Gain?|url=https://onlinelibrary.wiley.com/doi/abs/10.1111/twec.12407|journal=The World Economy|language=en|volume=40|issue=7|pages=1454–1472|doi=10.1111/twec.12407|s2cid=21402169|issn=1467-9701}}</ref><ref>{{Cite journal|last1=Chauvet|first1=Lisa|last2=Gubert|first2=Flore|last3=Mesplé-Somps|first3=Sandrine|date=2013-06-01|title=Aid, Remittances, Medical Brain Drain and Child Mortality: Evidence Using Inter and Intra-Country Data|url=https://doi.org/10.1080/00220388.2012.742508|journal=The Journal of Development Studies|volume=49|issue=6|pages=801–818|doi=10.1080/00220388.2012.742508|s2cid=154221637|issn=0022-0388}}</ref> Forskning viser også et emigration og tilbagemigration kan have positiv effekt på [[demokratisering]] og på kvaliteten af de politiske institutioner i oprindelseslandet.<ref name="ReferenceA">{{Cite journal |title=The Effect of Labor Migration on the Diffusion of Democracy: Evidence from a Former Soviet Republic|journal=American Economic Journal: Applied Economics|volume=9|issue=3|pages=36|doi=10.1257/app.20150517|year=2017|last1=Barsbai|first1=Toman|last2=Rapoport|first2=Hillel|last3=Steinmayr|first3=Andreas|last4=Trebesch|first4=Christoph|hdl=10419/83491|s2cid=4973898|url=http://www.cepii.fr/PDF_PUB/wp/2016/wp2016-26.pdf|doi-access=free}}</ref><ref>{{cite journal |last1=Ivlevs |first1=Artjoms |last2=King |first2=Roswitha M. |title=Does emigration reduce corruption? |journal=Public Choice |volume=171 |issue=3–4 |pages=389–408 |doi=10.1007/s11127-017-0442-z |year=2017 |doi-access=free }}</ref><ref name="editorialexpress.com">{{Cite web|url=https://editorialexpress.com/cgi-bin/conference/download.cgi?db_name=CSAE2016&paper_id=1009|title=Migration, Political Institutions, and Social Networks in Mozambique}}</ref><ref>{{cite journal |last1=Lodigiani |first1=Elisabetta |title=The effect of emigration on home-country political institutions |url=https://wol.iza.org/articles/effect-of-emigration-on-home-country-political-institutions/long |journal=IZA World of Labor |doi=10.15185/izawol.307|year=2016 |doi-access=free }}</ref><ref>{{cite journal |last1=Meseguer |first1=C. |last2=Burgess |first2=K. |title=International Migration and Home Country Politics |journal=Studies in Comparative International Development |date=2014 |volume=49 |issue=1 |pages=1–12 |issn=1936-6167|doi=10.1007/s12116-014-9149-z |doi-access=free }}</ref><ref>{{cite web |last1=Docquier |first1=Frédéric |last2=Lodigiani |first2=Elisabetta |last3=Rapoport |first3=Hillel |last4=Schiff |first4=Maurice |title=Emigration and democracy |url=https://www.econstor.eu/bitstream/10419/96047/1/654920451.pdf |publisher=Bar-Ilan University}}</ref><ref>{{cite journal |last1=Burgess |first1=Katrina |title=Migrants, Remittances, and Politics: Loyalty and Voice after Exit |journal=The Fletcher Forum of World Affairs |date=2012 |volume=36 |issue=1 |pages=43–55 |url=https://static1.squarespace.com/static/579fc2ad725e253a86230610/t/57ec80ff414fb5bf1aa95750/1475117316252/Burgess_36-1.pdf}}</ref><ref>{{cite book |last1=Ratha |first1=Dilip Mohapatra |last2=Sanket Scheja |first2=Elina |title=Impact of Migration on Economic and Social Development: A review of evidence and emerging issues |date=2011 |url=http://siteresources.worldbank.org/TOPICS/Resources/214970-1288877981391/Migration&Development-Ratha-GFMD_2010a.pdf |quote=Migrants may also serve as a channel for democratic attitudes and behaviors...}}</ref><ref name="Batista 77–104">{{Cite journal|last1=Batista|first1=Catia|last2=Vicente|first2=Pedro C.|date=1. januar 2011|title=Do Migrants Improve Governance at Home? Evidence from a Voting Experiment|journal=The World Bank Economic Review|volume=25|issue=1|pages=77–104|doi=10.1093/wber/lhr009|issn=0258-6770|hdl=10419/36182|s2cid=1813461|hdl-access=free}}</ref>
Samfund Migration