Regression analysis
The end of British colonial rule in Kenya in 1964 led to an inadvertent increase in ethnic segregation. Through private purchases and government schemes, farm land previously held by European farmers was transferred to African owners. These farms were further sub-divided into smaller localities, and, due to joint migration, many adjacent localities were occupied by members of different ethnic groups. This separation along these boundaries persists today. Kimuli Kasara, in a study of recent ethnic violence in the wake of the disputed 2007-08 Kenyan elections, used these post-colonial boundaries as an instrument for the degree of ethnic segregation. Through a 2 Stage Least Squares Regression analysis, Kasara showed that increased ethnic segregation in Kenya's Rift Valley Province is associated with an increase in ethnic violence.