Pull factor
A pull factor is a positive aspect of a place or a reason that attracts people to a place. Examples of pull factors are surpluses of resources or good lifestyles.
Push factor
High crime rates,bad weather etc.
Four factors
There are four factors that influence the liveability of places or why people decide to live there:
1. available resources (money)
2. employment
3. relationships with other people (for example, wanting to be near family or moving for a partner’s job)
4. lifestyle.
Urban decay
A situation in which a city area has fallen into a state of disrepair through its people leaving the area or not having enough resources to look after them