A measurement of migrants’ skills across European host countries

Migration is often discussed in terms of numbers: how many people arrive, where they come from, and how many seek safety. But for the economies that welcome them, a different question matters just as much: what can these new arrivals actually do? Skills are the invisible toolkit a person carries—their ability to solve problems, communicate, and perform complex tasks. Economists have long debated whether countries attract the most talented workers or the least, and whether generous welfare systems draw those who need the most help. The answer matters deeply for policy. If a nation attracts highly skilled workers, they may boost innovation and tax revenues; if they attract those with fewer opportunities, the challenge of integration becomes steeper. Yet, measuring this "skill" is difficult because it is not a single thing like height or weight. It is a hidden quality, a latent trait that must be inferred from the many visible signs of a person's life, such as their education, the jobs they have held, and the languages they speak.

In a new study, researchers Lorenzo Corsini and Irene Martelli set out to map this hidden landscape across Europe. They wanted to move beyond simple counts of university degrees and create a single, comprehensive score for the skills of migrants living in different European countries. To do this, they turned to a massive dataset from the 2014 European Labour Force Survey, which included detailed information on over 32,000 migrants across seventeen nations. Instead of looking at education or job titles in isolation, the researchers treated these details as clues. They used a statistical method, originally designed to grade student tests, to piece together these clues into a single estimate of a person's overall capability. This approach allowed them to weigh different factors—like whether someone had studied science, held a supervisory role, or mastered a local language—to build a portrait of the average migrant's skill level in each country.

The results reveal a striking map of talent across the continent. The study finds that the distribution of skills is far from even. Countries in Northern Europe, along with Switzerland and the United Kingdom, consistently host migrants with the highest estimated skill levels. These nations appear to attract a pool of workers who are, on average, better equipped with the capabilities needed for complex economic roles. In contrast, Southern European countries and some others tend to host migrants with lower average skill scores. The researchers also checked whether this pattern was simply a reflection of how rich a country is. They found a clear link: wealthier nations tend to host the most skilled migrants. This suggests that economic strength acts as a powerful magnet for talent, perhaps overshadowing other factors like income inequality or the size of the welfare state.

However, the picture changes when the researchers zoom in on specific groups. When they looked only at migrants arriving from poorer, non-European countries, the pattern held mostly true, with one notable exception: the United Kingdom. In the UK, even migrants from disadvantaged backgrounds showed skill levels comparable to the country's overall high average. This suggests that the UK's selection process might be particularly effective at identifying talent regardless of origin. The story is different for refugees, those fleeing war or persecution. As expected, this group generally displayed lower average skill scores than other migrants, reflecting the difficult circumstances of their departure. Yet, even within this group, the geography of talent was uneven. Refugees in Switzerland and Norway showed surprisingly high skill levels, while those in Italy, Belgium, and Finland showed the lowest. This indicates that the policies and circumstances of a specific host country can significantly shape the composition of the refugee population, sometimes filtering for higher capability even in the most desperate of migrations.

The study does not claim that migration policy is the only force at work. Geography, culture, and economic history all play roles in who ends up where. But the findings highlight that the current landscape is one of sharp contrasts. Some European nations are effectively gathering a highly skilled workforce, while others are struggling with a concentration of lower-skilled arrivals. For policymakers aiming to coordinate a European approach to migration, these differences are impossible to ignore. The data suggests that if the goal is to attract high-quality workers, the starting point matters. Countries that serve as the first point of entry for many migrants may find it harder to attract the most skilled individuals if their own economic or institutional environments are less attractive. Ultimately, the research underscores that migration is not a uniform flow of people, but a complex sorting process where the destination country plays a decisive role in determining the quality of the human capital it receives.