CLARK, William AV, 1991. Residential preferences and neighborhood racial segregation: A test of the Schelling Segregation Model. Demography. 1991. Vol. 28, p. 1–19.
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⇒ Alliance Formation ⇒ Sakoda-Schelling Model ⇒ Dynamic Models of Segregation ⇒ Open Enrollment: Volunteering at Columbine Elementary School (Race, Income, Stratification, Oh my!) blog 
Colorado offers school choice through Open Enrollment allowing parents to enroll their children in schools other than those assigned by geographic boundaries. One side effect of open enrollment in Boulder County has been Stratification (think Segregation only by Choice instead of by legal mandate). Columbine is the most stratified elementary school in the City of Boulder and one of the most stratified in the County.
I (Eric Dobbs) reflect on many years of local activism and the jarring experience where I stopped. I now see it as a journey of growing awareness of racial and other identity and deep challenges to my idealism.