The Context Between the Shift of Average Demand and the Safety Stock of Purchased Parts

  • János KorponaiEmail author
  • Ágota Bányainé Tóth
  • Béla Illés
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


In order to optimize the stockpile management costs, the suppliers of car manufacturers answer by building up a safety stock of different extents to avoid uncertainties arising from the fluctuation of demands and to minimize their impact. During the calculation of the safety stock in the case of both the periodic and the continuous review models, the relations proceed from the system of conditions, according to which the average level of forecasted demands does not change with the progress of time. In practice, however, we can see a certain shift, thus, during the definition of safety stocks and the order of purchased parts, the historical data can only be used by knowing the direction and the extent of the shift. During our analysis, we examine the impact of shifts of different directions and extents on the stock of purchased parts, and we build up a model that predicts the probability of the occurrence of a stock shortage of an unplanned extent and of an overstocking.



The described study was carried out as part of the EFOP-3.6.1-16-00011 “Younger and Renewing University – Innovative Knowledge City – institutional development of the University of Miskolc aiming at intelligent specialisation” project implemented in the framework of the Szechenyi 2020 program. The realization of this project is supported by the European Union, co-financed by the European Social Fund.


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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • János Korponai
    • 1
    Email author
  • Ágota Bányainé Tóth
    • 1
  • Béla Illés
    • 1
  1. 1.University of MiskolcMiskolcHungary

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