Profit-Maximization II(y=p(yy-c(y) At the profit-maximizing output level y dyq(p(y)y、dcy dIi(y) d 0 dy So, for y=y", dy (p(yy)=dc(y) d d7 Profit-Maximization (y) = p(y)y − c(y). At the profit-maximizing output level y* ( ) d y dy d dy p y y dc y dy ( ) ( ) ( ) = − = 0 so, for y = y*, ( ) d dy p y y dc y dy ( ) ( ) =