Key Terms

deindustrialisation — The process by which a country loses its manufacturing industries as those industries are replaced by cheaper foreign production or made obsolete by technology. In the UK, deindustrialisation was concentrated in the North of England, South Wales, and central Scotland from the 1970s–1990s.

north-south divide — The persistent economic, social, and health inequalities between prosperous London and the South-East, and the less prosperous North of England, Wales, and parts of Scotland. Measurable in GDP per capita, life expectancy, unemployment rates, and house prices.

urban regeneration — The long-term process of renewing a declining urban area through investment, demolition, new construction, and economic redevelopment. Examples: Salford Quays (derelict docks to MediaCityUK media hub); London Docklands (Victorian docks to Canary Wharf financial district).

ageing population — A population with an increasing proportion of older people, caused by falling birth rates and rising life expectancy. Currently 18% of the UK population is aged 65+; projected to reach 25% by 2045.

net migration — The difference between the number of people arriving in a country (immigration) and the number leaving (emigration). UK net migration peaked at about 900,000 in the year to June 2023 and has since fallen sharply. It has been the main recent driver of population growth.

global city — A city acting as a key node in the world economy, characterised by major financial markets, global transport connections, cultural significance, and high levels of international migration. London is typically identified alongside New York, Tokyo, and Paris as one of the four most globally significant cities.

gentrification — The process by which an urban area becomes wealthier as higher-income residents move in and improve properties, driving up rents and house prices and often displacing lower-income original residents. A significant critique of regeneration schemes including Salford Quays.

replacement level fertility — The total fertility rate needed to keep a population stable without migration — approximately 2.1 children per woman. The rate in England and Wales (1.49 in 2022) is below replacement, meaning the population would decline without net migration.

economic clustering — The tendency for jobs and businesses to gather in one place because firms benefit from being close to other firms, skilled workers, suppliers, and customers. Clustering explains why London's financial sector keeps growing while northern cities struggle to attract equivalent investment.

Northern Powerhouse — A government initiative announced in 2014 to boost the economies of northern English cities through investment in transport, skills devolution, and economic partnerships. Widely criticised for insufficient follow-through, particularly after the northern part of HS2 was cancelled in 2023.