Trend forecasting for stability in supply chains |
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Authors: | Khalid Saeed |
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Institution: | aSocial Science and Policy Studies Department, Worcester Polytechnic Institute, Worcester, MA, 01609, United States |
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Abstract: | This paper revisits the use of trend forecasting to determine ordering policy in supply chains by viewing it as a part of the control process for making the supply responsive to demand. Trend forecasting is often used to assess demand — a tracked variable in the control context, which drives supply — a tracking variable. Used in this way, it is often observed to increase instability creating the so-called bullwhip effect. Trend is used on the other hand with reliability to increase stability in controller control, but with the difference that a trend of a tracking variable is used to drive correction. While both processes involve use of trend to determine policies for achieving reliable performance, the outcomes of the former are variable while those of the later can create improvement in control with certainty. The similarities and differences between the two processes are discussed and guidelines developed for applying trend forecasting to enhance stability in supply chains. |
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Keywords: | Trend forecasting Supply chains Bullwhip effect Production planning Operations management Policy System dynamics Dynamical systems Control theory Controller control PID control |
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