Migration Theories

Question 1

Invasion and succession - forcing

Answer 1

Black ethnic groups start at centre and grow
The tolerance white people have dissolves
White flight - move outwards
35-50% black - racial instability - more white flight

Question 2

Filtering - choosing

Answer 2

White don’t mind when black is minority (<20%) but black liked mixed population (>30%)
Increasing black population - once >20%, white don’t buy houses
House prices reduce - more black enter - reaches 30% tipping point
More black population willing to enter