What skill is described by resolving differences through agreement?

The concept described by resolving differences through agreement is best represented by the term "compromise." Compromise involves two or more parties making concessions to reach a mutually acceptable solution. It implies that each side may give up something in order to achieve a resolution that is satisfactory to all involved.

In contrast, while balance and harmony relate to overall stability and agreement, they do not specifically encapsulate the idea of negotiation where parties actively seek to resolve their differences. Negotiation itself focuses on the process through which agreements are reached but does not inherently describe the outcome of that process, which is a compromise. Thus, compromise accurately reflects the act of resolving differences through mutual agreement.