https://image.slidesharecdn.com/vmqpf7ojrqwuwie444ym-signature-03e6d4b7a6264e0f74d0629b59a0578d829ee077bf4258afd5b6b7c8f94ae90a-poli-141114045935-conversion-gate02/95/the-bullwhip-effect-5-638.jpg?cb=1415941488