Suppose the cost curves for a firm in a perfectly competitive market have the typical shapes. at what point does the firm achieve productive efficiency? productive efficiency occurs at the quantity and average cost

In a perfectly competitive market, a firm will achieve productive efficiency when the price of its products is equal to the minimum average cost.

Since firms in a perfectly competitive market are price takers, their total output will always be equal to the efficient amount. If their output is larger, they will be losing money and if they produce at a lower level they should try to reach the efficient amount to earn the highest possible profit.

wheres the chart? so i can answer.