Migratory models Sunday, 02 October 2016

Revenstein’s laws Bases in the UK IN THE 1880’S It’s short It’s step by step Longer distances to further places There are reverse flows Rural populations are more likely to move Females move more than males Most re adults Town grow more through migration than natural increase Increase with industrialisation Major cause is economic Are these accurate now? Sunday, 02 October 2016

Simplified model Sunday, 02 October 2016 Push Pull Push and pull factors fall in to 5 categories – physical, demographic economic social and political Propaganda Heavy taxes good welfare Freedom of speech

Lee’s Model This does not attempt to isolate individual push or pull, it sees host and source as possessing a range of attributes, each individual sees these differently depending on characteristics such as gender and age. This model Also introduces intervention obstacles that can be real or perceived these have to be overcome before migration Sunday, 02 October 2016

Stouffers intervening opportunities model This attempts to say why migrants settle in different areas than originally intended This attempts to say why migrants settle in different areas than originally intended Sunday, 02 October 2016 Intervening opportunities enable people to be satisficers to be content with what they obtain Better housing More jobsBetter environment Present location Desired location (positive perception

Gravity model Newton's law of universal gravitation has been used to predict the level of migration between 2 places. Newton's law of universal gravitation has been used to predict the level of migration between 2 places. The number of people moving between A abd B is equivalent to population of A multiplied by population of B DIVIDED BY THE SQUARED DISTANCE BETWEEN THEM! The number of people moving between A abd B is equivalent to population of A multiplied by population of B DIVIDED BY THE SQUARED DISTANCE BETWEEN THEM! The logic-migration will be greater the closer they are The logic-migration will be greater the closer they are Distance equals friction to movement Distance equals friction to movement