Excess of a coalition (source code)

= Excess of a coalition
{title2=$e(S,x)=v(S)-\sum_{i\in S}x_i$}

= Excesses of a coalition
{synonym}

The excess measures a <coalition>'s complaint against an allocation: a positive excess means its own attainable value exceeds its assigned total. The <core of a cooperative game> requires every excess to be nonpositive at an efficient allocation. The <nucleolus> lexicographically minimizes the decreasingly sorted excess vector over <imputations>.