International Journal of Production Research volume 57, issue 15-16, P5137-5153 2018 DOI: 10.1080/00207543.2018.1524167 View full text
David Bogataj, Marija Bogataj

Abstract: The Material Requirements Planning (MRP) Theory celebrates 50 years of its development. Because delays are Inevitable, Grubbström developed a theory where delays are calculated in the space of complex variables. Using his approach to evaluate time and exposure to risk in complex production-inventory systems is much easier when dealing with multiple delays. Working in the space of complex variables, which describe production flows and cash flows associated with items, it is easier to derive the NPV of activitie…

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