The Delicate Balance of International Migration
PORTLAND, USA, February 3 (IPS) - The delicate balance of international migration relies on the high demand for labor and the enforcement of stricter immigration controls. This equilibrium is especially crucial when considering the international migration of students and skilled workers.
International students and skilled migrant workers play essential roles in economic development and addressing labor shortages in many countries. However, these individuals are facing increasing obstacles in entering and integrating into destination countries.
Essentially, most major destination countries are shifting from a policy of expanding migrant labor to one of selectivity and restriction in order to manage immigration within their borders, especially unauthorized immigration.
A notable exception to this global trend is Spain, which is granting legal status to half a million undocumented migrants. This policy aims to reduce labor exploitation in Spain’s underground economy and meet the need for around 300,000 migrant workers annually to sustain its economy.
The stricter immigration controls in many destination countries are primarily driven by political shifts to the right, national security concerns, public pressure, unauthorized migration, unlawful border crossings, visa overstays, and anxieties about changing population composition and social integration. These controls are also limiting asylum seekers and low skilled migrants while favoring highly skilled migrants.
Major destination countries have also implemented stricter immigration controls in terms of international student migration.
These controls include stricter visa rules and entry requirements, fixed-term visas, limited years of study, work permit restrictions, higher financial costs, and restrictions on bringing dependents. These measures are driven by high net migration, efforts to curb visa misuse, university enrollment caps, housing pressures, higher financial requirements, and restrictions on bringing family dependents.
In 2024, there were approximately 304 million international migrants worldwide, representing about 3.7% of the world’s population of 8.2 billion. This figure is nearly double the number of international migrants in 1990, which was approximately 154 million, representing 2.9% of the world’s population of 5.3 billion at that time (Figure 1).
The top five migration destination countries and their percentage of all migrants are the United States (17%), Germany (6%), Saudi Arabia (5%), the United Kingdom (4%), and France (3%) (Figure 2).
In contrast, the top five emigration countries and their percentage of all emigrants are India (6%), China (4%), Mexico (4%), Ukraine (3%), and Russia (3%) (Figure 3).
As of 2024–2025, there were approximately 7 million internationally mobile students globally. The key destinations for these international students were the United States (17%), Canada (12%), the United Kingdom (11%), France (7%), and Australia (6%). Other major destination countries were Germany, Russia, South Korea, China, and Spain (Figure 4).
In addition to internationally mobile students, there were approximately 168 million migrant workers in 2022, accounting for about 5 percent of the global labor force. About two-thirds of all migrants of working age are in the labor force, with 60% of them being men.
In many of the more developed countries, the percentage of migrant workers in the labor force is significantly higher. For example, in the United States, approximately 20% of the labor force, totaling over 30 million people, consists of immigrants and foreign-born workers who are concentrated in the construction, farming, and service sectors. Canada has an even higher proportion of 30%, with many migrant workers represented in the tech sector, manufacturing, and healthcare.
Migrant workers can be found across all skill levels. Despite many possessing higher qualifications, they are often concentrated in lower-skilled industries such as services, agriculture, construction, and tourism. However, sectors and occupations related to high-skilled information technology and professional work often rely on skilled migrant labor to address labor shortages.
As populations rapidly evolve during the 21st century, changes in fertility, mortality, and migration are shaping the demographics of many regions. These changes are based on past trends, current data, and projected future patterns over the next eighty years.
Projections suggest that population decline will persist because of low fertility rates remaining below the replacement levels of about two births per woman. Many countries have experienced low fertility rates for an extended period. The population of the more developed countries is expected to decrease by 14 million by 2050, while the least developed countries are projected to grow by 733 million during the same period.
Regarding mortality rates, life expectancies are anticipated to continue rising throughout the century. For instance, the current life expectancy at birth of 80 years in more developed countries is projected to reach approximately 84 years by 2050 and 90 years by the end of the 21st century.
In addition to declining populations and increasing life expectancy, many countries have experienced a “historic reversal” in their age structures. By 2025, 55 countries and areas had experienced this reversal, with more countries expected to undergo the same soon.
This significant demographic milestone occurs when the percentage of individuals aged 65 and older exceeds the percentage of those aged 17 and younger. In simpler terms, it is when older adults outnumber children in a population.
Population ageing is expected to continue throughout the remainder of the 21st century. The median age for more developed countries currently at 42 years is projected to increase to 45 years by 2050 and 48 years by 2100.
Additionally, the proportion of elderly individuals is projected to continue rising. For example, Europe’s elderly population is expected to increase to approximately 30 percent by mid-century.
Major destination countries are also becoming more ethnically diverse due to increasing levels of international migration. For instance, the estimated number of foreign-born individuals in Europe, which was around 57 million at the beginning of the 21st century, has risen to approximately 87 million by 2020.
The population compositions of many countries, including the United States and the United Kingdom, are becoming significantly more ethnically diverse. Population projections suggest that the US and the UK populations will become “minority white” around 2045 and 2065, respectively.
In addition to high levels of legal migration, increasing levels of unauthorized migration pose mounting challenges for many destination countries and for international students and skilled migrant labor.
Notable among these challenges are the negative attitudes and hostilities towards immigrants and their families, as well as the increasing political influence of far-right nationalist parties advocating anti-immigrant policies. These parties are concerned that the growing numbers of immigrants will have a negative impact on their traditional culture, shared values, and national identity. They believe that immigration, especially unauthorized migration, undermines their way of life, national security, ethnic heritage, and social cohesion.
A significant factor fueling the unprecedented high levels of unauthorized migration to many destination countries is the rapid demographic growth of sending countries. Many of these countries, which are struggling with poverty, political instability, civil strife, and climate change, are in the less developed regions of Africa, Asia, and Latin America.
The number of people desiring to emigrate permanently is approximately 1.3 billion. This number significantly exceeds the number of immigrants countries are willing to admit, leading many individuals to migrate without authorization.
Of particular note is Africa’s population, which currently includes 33 of the 46 least developed countries in the world. Africa’s population is expected to more than triple during the 21st century, increasing from approximately 800 million to nearly 4 billion.
In summary, the major demographic features of traditional destination countries for the 21st century are declining, ageing, and diversifying. In contrast, the populations of most sending countries are increasing and remain relatively young, with many of them wishing to emigrate to a developed country.
These potent, pervasive, and differing demographic trends are creating a delicate balance of high demand for labor and the implementation of stricter immigration controls. This balance is especially relevant for international students and skilled migrant labor as it impacts their entry and integration into destination countries.
Joseph Chamie is an independent consulting demographer and former director of the United Nations Population Division.
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