Why do economies of scale and learning curve effects look similar when they are graphed? What different concepts do they represent?

Question

Quizplus · Accepted Answer

The Answer is A graph of economies of scale shows that average costs per unit of output fall when the quantity of output increases.However,this decrease in the average cost per unit of output occurs at a decreasing rate.Economies of scale show the cost advantages larger firms have in some industries,like basic metals,where costs per unit fall with the cumulative volume of output.A graph of a learning curve shows that average costs per unit of output fall when the cumulative quantity of output produced since inception increases.This decrease in the average cost per unit of output occurs at a decreasing rate.Learning curves show the cost advantages firms that have cumulatively produced greater amounts of output have in some industries such as semiconductors.

Why Do Economies of Scale and Learning Curve Effects Look