The elimination of (getting rid of) economic classes is a goal for
capitalism or socialism

Socialism. Capatilism is based around the rich getting richer.

you really need to put more information in your (question); /// i believe you are talking about ///creek traveler"s rest, about lewis and clark not good

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.