Suppose a$$ firm's cost$-$output elasticity

$($Upper E Subscript Upper CEC$)$

is

$0\mathrm{.}620\mathrm{.}62.$

Part $2$

If$$ so$,$ then this$$ firm's cost function exhibits

economies of scale

$.$

Part $3$

What is this$$ firm's scale economies index$($SCI$)?$

Part $4$

The SCI for this firm is

enter your response here.

$($Enter

your response rounded to two decimal

places.$)$