Considerable research reports that racial composition strongly affects
violent-crime rates. Unfortunately, most research ignores the possibi
lity that violent-crime rates may affect racial composition. Using a s
ample of U.S. cities, the authors examine the reciprocal effects of ra
cial composition and violent-crime rates over the last 40 years. While
racial composition strongly affects the change in violent-crime rates
from 1980 to 1990, it only minimally affects changes in rates for the
previous three decades; but violent-crime rates (especially robbery)
substantially affect the change in racial composition for all four dec
ades. Indeed, robbery rates appear to play a significant role in the w
hite flight from central cities.