500
What is efficient scale, economic of scale, diseconomies of scale, and constant returns to scale
efficient scale:the quantity of output that minimizes average total cost
economies of scale: the property whereby long-run average total cost falls as the quantity of output increases
diseconomies of scale: the property whereby long-run average total cost rises as quantity of output increases
constant returns to scale:the property whereby long-run average total cost stays the same as the quantity of output changes