The improvement in the value of the objective function per unit increase in a right-hand side is the?

The improvement in the value of the objective function per unit increase in a right-hand side is known as the shadow price or dual value. It reflects how much the objective function's value will change with a one-unit increase in the corresponding constraint's right-hand side, assuming all other factors remain constant. Shadow prices are particularly useful in linear programming and resource allocation problems, as they indicate the worth of relaxing constraints.