The market supply curve is found by
A) plotting the supply curves of individual firms.
B) plotting and summing up the supply curves of individual firms.
C) plotting the supply curves of individual consumers.
D) taking the supply curve of the representative firm.

Question

Quizplus · Accepted Answer

The market supply curve is found by plotting and summing up the supply curves of individual firms. This is because the market supply is determined by the collective output of all firms in the industry. Therefore, to obtain the market supply curve, we need to add up the quantities supplied by each individual firm at each price level.

The Market Supply Curve Is Found by