{"id":421,"date":"2017-08-27T21:57:45","date_gmt":"2017-08-27T21:57:45","guid":{"rendered":"http:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/?p=421"},"modified":"2017-08-27T21:57:45","modified_gmt":"2017-08-27T21:57:45","slug":"comparative-perspective-on-migration-from-eurostat-population-data","status":"publish","type":"post","link":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/?p=421","title":{"rendered":"Comparative perspective on migration from Eurostat population data"},"content":{"rendered":"<p>Migration is a big issue at the moment in Europe, not least in the UK<br \/>\nwhere public fears about migration (stoked by a racist press and a Home<br \/>\nSecretary and now PM who, let&#8217;s say, seems to have a visceral unreasoned<br \/>\nbelief that the presence of foreigners in some way harms Britain) lie<br \/>\nbehind the Brexit vote.<\/p>\n<p>There are other reasons for being interested in migration, of course.<br \/>\nFor instance, I&#8217;ve been wondering a bit about gender differentials in the age profile<br \/>\nof migration and re-migration. So I started looking for data, initially<br \/>\non the Irish CSO site, where I found annual year-of-age<br \/>\n<a href=\"http:\/\/www.cso.ie\/px\/pxeirestat\/Statire\/SelectVarVal\/Define.asp?maintable=PEA11&amp;PLanguage=0\">population estimates<\/a>.<\/p>\n<p><!--more-->I coupled this with figures on deaths from the <a href=\"http:\/\/www.mortality.org\/\">Human Mortality Database<\/a>, to calculate cohort-wise net<br \/>\nmigration figures, defined as change in cohort size net of deaths, using<br \/>\n1996 as the base year. With this I generated, inter alia, the following<br \/>\ngraph, comparing the timeseries of net migration for males and females<br \/>\nbroken down by cohort. This clearly shows a very strong effect whereby<br \/>\nwhile both sexes are most likely to migrate in their 20s, males are much<br \/>\nmore likely to re-migrate whereas females settle down (this<br \/>\ninterpretation depends on the assumption that a lot of the post-crisis<br \/>\ndecline in cumulative net migration was due to recent immigrants<br \/>\nre-migrating).<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmig.png\" alt=\"Net migration\" \/><\/p>\n<p>Once started on this exercise, I decided to widen my horizons, and went<br \/>\nto the <a href=\"http:\/\/ec.europa.eu\/eurostat\/web\/population-demography-migration-projections\/population-data\/database\">Eurostat Population Database<\/a> where both population and death data<br \/>\nis available by calendar year and year of age. This allows me to<br \/>\ncalculate cohort net size between 1993 and 2015 for most European<br \/>\ncountries, using estimates supplied to Eurostat by the national<br \/>\nstatistical agencies.<\/p>\n<p>This graphic shows this quantity (i.e., cumulative net migration) for a selection of EU countries, by<br \/>\nsex, expressed as a proportion of the population size).<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigRate.png\" alt=\"netmigRate.png\" width=\"80%\" \/><\/p>\n<p>We see a number of different experiences here: Poland&#8217;s net emigration,<br \/>\nIreland&#8217;s huge intake reversing after the financial crisis hits, and<br \/>\notherwise different levels if net in-migration. Notably, while the UK<br \/>\nshows significant in-migration, it is hardly the most extreme, with<br \/>\nIreland, Sweden and Italy showing higher levels.<\/p>\n<p>These are summaries, and important ones. But it is also possible to use<br \/>\ngraphics to present more detailed data, using heatmaps to produce what<br \/>\n<a href=\"https:\/\/twitter.com\/JonMinton\">@jonminton<\/a> calls &#8220;<a href=\"https:\/\/osf.io\/w274r\/\">Lexis surfaces<\/a>&#8220;. First, we can look at the data for<br \/>\nIreland, looking at cohort-wise net migration by calendar year.<\/p>\n<p>(If you want more info on how to create heatmaps in Stata, give me a <a href=\"mailto:brendan.halpin@ul.ie\">shout<\/a>.)<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigIE.png\" alt=\"netmigIE.png\" width=\"80%\" \/><\/p>\n<p>Since this is oriented in terms of birth-year, cohorts can be followed<br \/>\nhorizontally, while age groups are represented by lines going down to<br \/>\nthe right.<\/p>\n<p>There is a lot going on here: First, apart from 2006-2012, there has<br \/>\nbeen serious net emigration for both males and females aged between<br \/>\nabout 18 and 28. Despite the Celtic Tiger in the mid 1990s, people were<br \/>\nstill leaving, but just before the crisis hit this was reversed. It also<br \/>\ntook a while after the crisis for this age-group to go back net<br \/>\nnegative. Otherwise we see really significant immigration of cohorts<br \/>\nborn in the 1960s and 1970s from relatively early in the period,<br \/>\nsustained until the crisis and importantly showing little decline after<br \/>\nthe crisis. A lot of these will be Irish people who emigrated earlier<br \/>\nreturning as the economy picks up.<\/p>\n<p>On the whole the male and female pictures are similar, except for the<br \/>\nfeature picked up in the first graphic: females are less likely to<br \/>\nre-migrate \u2013 that is, particularly looking at the 1980s cohorts, there<br \/>\nis markedly less post-crisis drop-off than in the male data.<\/p>\n<p>Below is a data dump for the countries in the second graphic above, Germany (with surprisingly inconsistent data), Denmark, France, Ireland, Italy, the Netherlands, Austria, Poland, Sweden, Switzerland and the UK.<br \/>\nIt&#8217;s worth noting that the UK, like Sweden, Austria, Denmark, Germany<br \/>\nand Ireland have lots of net migration in the 20-40 age range, which is<br \/>\neconomically most beneficial. France is odd: net in-migration across the<br \/>\nage range, but a strong pattern of significant emigration of young men<br \/>\n(also, but weaker, of young women). Switzerland and the Netherlands show<br \/>\nan interesting secondary effect, of net emigration of older cohorts (see<br \/>\n<a href=\"http:\/\/voxeu.org\/article\/why-are-dutch-leaving-netherlands\">commentary for NL<\/a>).<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigDE.png\" alt=\"netmigDE.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigDK.png\" alt=\"netmigDK.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigFR.png\" alt=\"netmigFR.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigIE.png\" alt=\"netmigIE.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigIT.png\" alt=\"netmigIT.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigNL.png\" alt=\"netmigNL.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigOT.png\" alt=\"netmigOT.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigPL.png\" alt=\"netmigPL.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigSE.png\" alt=\"netmigSE.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigSW.png\" alt=\"netmigSW.png\" width=\"80%\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/teaching.sociology.ul.ie\/bhalpin\/mig\/netmigUK.png\" alt=\"netmigUK.png\" width=\"80%\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Migration is a big issue at the moment in Europe, not least in the UK where public fears about migration (stoked by a racist press and a Home Secretary and now PM who, let&#8217;s say, seems to have a visceral unreasoned belief that the presence of foreigners in some way harms Britain) lie behind the &hellip; <a href=\"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/?p=421\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Comparative perspective on migration from Eurostat population data<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[6,4],"tags":[],"_links":{"self":[{"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/421"}],"collection":[{"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=421"}],"version-history":[{"count":8,"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/421\/revisions"}],"predecessor-version":[{"id":429,"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/421\/revisions\/429"}],"wp:attachment":[{"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/teaching.sociology.ul.ie\/bhalpin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}