Solar, for instance, is less useful in the long dark night of the northern winter.Washington Post (Aug 14, 2015) sol (sun) + ar (suffix forming adjectives) As the roots and definition show, the word should be an adjective, but the example sentence uses it as a shortened form of the noun phrase solar energy..
Disproportionality is the overrepresentation of a particular race or cultural group in a program or system compared to their representation in the general population. Disproportionality affects all systems such as the educational, mental health and judicial systems creating additional costs within these areas.
1 Distributive Inefficiency-refers to the inefficient distribution of income and wealth within a society. 2  Decreasing marginal utilities of wealth suggests that more egalitarian distributions of wealth are more efficient than unegalitarian distributions.