Question

Which of the following illustrates economies of scale , diseconomies of scale , and constant returns to scale ?

Liza's average total cost changes from $4.50 to $2.20 when she increases salad production from 7 to 9 an hour. Sam's average total cost changes from $1.30 to $2.80 when he increases smoothie production from 5 to 8 gallons an hour. Tina's average total cost remains at $3 when she increases pizza production from 12 to 13 an hour.

a. Sam faces economies of scale; Liza faces diseconomies of scale; Tina faces constant returns to scale.
b. Sam faces economies of scale; Tina faces diseconomies of scale; Liza faces constant returns to scale.
c. Tina faces economies of scale; Sam faces diseconomies of scale; Liza faces constant returns to scale.
d. Liza faces economies of scale; Sam faces diseconomies of scale; Tina faces constant returns to scal

Answer 1

Answer: d. Liza faces economies of scale; Sam faces diseconomies of scale; Tina faces constant returns to scale

Step-by-step explanation:

Economies of scale occurs when the increase in production by companies brings about a reduction in cost. Diseconomies of scale is when a rise in production leads to an increase in cost as well. For a constant return to scale, the cost remains the same.

Therefore, the answer will be option D "Liza faces economies of scale; Sam faces diseconomies of scale; Tina faces constant returns to scale".