Failed states can be created from war and conflict, which damages any remaining infrastructure and services, resulting in dire living conditions and drastic outward migration.
The number of people migrating internationally has risen rapidly from 1950 to 2015, with the global population growing from 2.5 billion to 7.3 billion during the same period.
In the 1990s, international migration occurred mainly to world destinations like New York and Paris, but many cities in developing countries like Mumbai and Lagos have become major hubs for migration.
Japan’s population is declining, with 27% aged 65 and over and its working age population expected to drop to 44 million by 2037, half of what it was in 2007.
Australia’s immigration policy has been based on skills and employment, with 70% of immigrants accepted into Australia coming to work in areas with skills shortages.
Many international schools have also set up in Singapore to cater education to migrants, whose first language may not be Malay (the national language).
Globalisation has led to extensive movements of capital, goods and people which has impacted migrations rates and traditional definitions of sovereignty.
International migration can result from voluntary economic migration, refugees, asylum seekers, environmental refugees, international students, and others.
Globalisation has encouraged rural to urban migration, such as in China, and international migration between countries, such as from the UK to Australia.
In China, the Hukou system means that many rural migrants cannot benefit from globalisation, with more than 300 million rural migrants, many of whom suffer from poverty, famine and illness from living close to polluting factories.
Foreign ownership of land has caused a lot of anger amongst locals due to a lack of housing and a surge in prices has made buying a first home very difficult.
In 2014, a referendum was held in Scotland in which 45% of voters voted for independence, causing great division between the population, especially regarding politics.