Industrial centralisation can be seen as both a pattern and process of the industrial geography of Latin America. With reference to total industry and individual industrial sectors, centralisation is a pattern - the spatial pattern of industries in aggregate concentrating in the primate city. The theory most prevalent behind schemes of industrial decentralisation in Latin America in the late 1950s, 1960s and early 1970s was that concerning growth poles. From the mid-nineteenth to the mid-twentieth century, Latin America's dominant role in the world economy was as the provider of mineral and agricultural resources for the industrialised countries of the core. One major factor behind the lack of industrialisation at resource locations in Latin America was the foreign ownership of resources. Attempts at industrial decentralisation through the use of the motor vehicle industry have met with little success in Latin America. Industrial decentralisation has been a declared objective of governments and planners since the 1960s.