Collocations for disparity - noun

considerable, enormous, great, gross, huge, vast, wide
growing
glaring, obvious
economic, income, pay
the glaring economic disparities between different groups in our society

ethnic, gender, racial (all AmE)
the issue of gender disparity in the student population

address, reduce
America should address the racial disparities in its criminal justice system.

eliminate
increase
explain
reveal, show

disparity between
The great disparity between the teams did not make for an entertaining game.

disparity in
the disparity in their salaries

disparity of
a disparity of resources