A refugee, conventionally speaking, is a person who has lost the protection of their country of origin and who cannot or is unwilling to return there due to well-founded fear of persecution. Such a person may be called an asylum seeker until granted refugee status by a contracting state or by the United Nations High Commissioner for Refugees (UNHCR) if they formally make a claim for asylum.
Emigration is the act of leaving a resident country or place of residence with the intent to settle elsewhere. Conversely, immigration describes the movement of people into one country from another. A migrant emigrates from their old country, and immigrates to their new country. Thus, both emigration and immigration describe migration, but from different countries' perspectives.
Human capital flight is the emigration or immigration of individuals who have received advanced training at home. The net benefits of human capital flight for the receiving country are sometimes referred to as a "brain gain" whereas the net costs for the sending country are sometimes referred to as a "brain drain". In occupations with a surplus of graduates, immigration of foreign-trained professionals can aggravate the underemployment of domestic graduates, whereas emigration from an area with a surplus of trained people leads to better opportunities for those remaining. But emigration may cause problems for the home country if the trained people are in short supply there.
Human migration is the movement of people from one place to another, with intentions of settling, permanently or temporarily, at a new location. The movement often occurs over long distances and from one country to another, but internal migration is the dominant form of human migration globally.
Forced displacement is an involuntary or coerced movement of a person or people away from their home or home region. The UNHCR defines 'forced displacement' as follows: displaced "as a result of persecution, conflict, generalized violence or human rights violations".
Repatriation is the return of a thing or person to its or their country of origin, respectively. The term may refer to non-human entities, such as converting a foreign currency into the currency of one's own country, as well as the return of military personnel to their place of origin following a war. It also applies to diplomatic envoys, international officials as well as expatriates and migrants in time of international crisis. For refugees, asylum seekers and illegal migrants, repatriation can mean either voluntary return or deportation.
Immigration is the international movement of people to a destination country of which they are not usual residents or where they do not possess nationality in order to settle as permanent residents. Commuters, tourists, and other short-term stays in a destination country do not fall under the definition of immigration or migration; seasonal labour immigration is sometimes included, however.
Migrant literature, sometimes written by migrants themselves, tells stories of immigration.
African immigrants in Europe are individuals residing in Europe who were born in Africa. This includes both individuals born in North Africa and Sub-Saharan Africa.
Opposition to immigration, also known as anti-immigration, is a political ideology that seeks to restrict immigration. In the modern sense, immigration refers to the entry of people from one state or territory into another state or territory in which they are not citizens. Illegal immigration occurs when people immigrate to a country without having official permission to do so. Opposition to immigration ranges from calls for various immigration reforms, to proposals to completely restrict immigration, to calls for repatriation of existing immigrants.
International migration occurs when people cross state boundaries and stay in the host state for some minimum length of the time. Migration occurs for many reasons. Many people leave their home countries in order to look for economic opportunities in another country. Others migrate to be with family members who have migrated or because of political conditions in their countries. Education is another reason for international migration, as students pursue their studies abroad, although this migration is sometimes temporary, with a return to the home country after the studies are completed.
The history of immigration to the United States details the movement of people to the United States from the colonial era to the present day. Throughout U.S. history, the country experienced successive waves of immigration, particularly from Europe and later on from Asia and Latin America. Colonial-era immigrants often repaid the cost of transoceanic transportation by becoming indentured servants in which the new employer paid the ship's captain. In the late 19th century, immigration from China and Japan was restricted. In the 1920s, restrictive immigration quotas were imposed but political refugees had special status. Numerical restrictions ended in 1965. In recent years, the largest numbers of immigrants to the United States have come from Asia and Central America.
The Egyptian diaspora consists of citizens of Egypt abroad sharing a common culture and Egyptian Arabic dialects. The phenomenon of Egyptians emigrating from Egypt was rare until Gamal Abdel Nasser came to power after overthrowing the monarchy in 1952. Before then, Cleland's 1936 declaration remained valid, that "Egyptians have the reputation of preferring their own soil. Few ever leave except to study or travel; and they always return... Egyptians do not emigrate".
The Belarusian diaspora refers to emigrants from the territory of Belarus as well as to their descendants.
Emigration from Mexico is the movement of people from Mexico to other countries. The top destination by far is the United States, by a factor of over 150 to 1 compared to the second most popular destination, Canada.
During the period of 1965 – 2021, an estimated 440,000 people per year emigrated from Africa; a total number of 17 million migrants within Africa was estimated for 2005. The figure of 0.44 million African emigrants per year pales in comparison to the annual population growth of about 2.6%, indicating that only about 2% of Africa's population growth is compensated for by emigration.
Women migrant workers from developing countries engage in paid employment in countries where they are not citizens. While women have traditionally been considered companions to their husbands in the migratory process, most adult migrant women today are employed in their own right. In 2017, of the 168 million migrant workers, over 68 million were women. The increase in proportion of women migrant workers since the early twentieth century is often referred to as the "feminization of migration".
The Venezuelan refugee crisis, the largest recorded refugee crisis in the Americas, refers to the emigration of millions of Venezuelans from their native country during the presidencies of Hugo Chávez and Nicolás Maduro since the Bolivarian Revolution. The revolution was an attempt by Chávez and later Maduro to establish a cultural and political hegemony, which culminated in the crisis in Venezuela. The resulting refugee crisis has been compared to those faced by Cuban exiles, Syrian refugees and those affected by the European migrant crisis. The Bolivarian government has denied any migratory crisis, stating that the United Nations and others are attempting to justify foreign intervention within Venezuela.
Voluntary return or voluntary repatriation is usually the return of an illegal immigrant or over-stayer, a rejected asylum seeker, a refugee or displaced person, or an unaccompanied minor; sometimes it is the emigration of a second-generation immigrant who makes an autonomous decision to return to their ethnic homeland when they are unable or unwilling to remain in the host country.
Almost half of international migrants are women, generally travelling as either migrant workers or refugees. Women migrant workers migrate from developing countries to high-income countries to engage in paid employment, typically in gendered professions such as domestic work. Because their work disproportionately takes place in private homes, they are vulnerable to exploitation and abuse. Wages earned are largely sent home to the originating country to support the cost of living of the family left behind.