In modern days, one of the most interesting and developing problems that supply chain man- agement has had to face is the bullwhip effect (BE). The bullwhip effect represents the phe- nomenon of demand distortion where orders to suppliers have larger variance than sales to the buyer and this distortion propagates upstream in an amplified form [1]. These demand variabil- ity amplification might not be as a consequence of changes in the downstream demand but gen- erated within the supply chain [2].