Apu's Squishy Production Function Is Where K Is the Number

Essay

Apu's Squishy production function is where K is the number of squishy machines and L is the number of labor hours he employs. Does this production function exhibit increasing, decreasing or constant returns to scale? At the moment, Apu uses 2 squishy machines and 4 labor hours. Suppose that Apu can use any amount of either input without affecting the market costs of the inputs. If Apu increased his use of labor hours and squishy machines by 100%, how much would his production increase? Increasing the use of both inputs by 100% will result in Apu's costs increasing by exactly 100%. If Apu increases his use of all inputs by 100%, what will increase more his production or his costs? Given that Apu can sell as many squishies as he produces for $1.00, do his profits go up or down when he increases his input use by 100%?