نتایج جستجو برای: Safety stocks

تعداد نتایج: 277839  

Journal: :journal of optimization in industrial engineering 2014
esmaeil mehdizadeh amir fatehi kivi

this paper proposes a new mixed integer programming model for multi-item capacitated lot-sizing problem with setup times, safety stock and demand shortages in closed-loop supply chains. the returned products from customers can either be disposed or be remanufactured to be sold as new ones again. due to the complexity of problem, three meta-heuristics algorithms named simulated annealing (sa) al...

Journal: :Manufacturing & Service Operations Management 2009
Tor Schoenmeyr Stephen C. Graves

We examine the placement of safety stocks in a supply chain for which we have an evolving demand forecast. Under assumptions about the forecasts, the demand process, and the supply chain structure, we show that safety stock placement for such systems is effectively equivalent to the corresponding well-studied problem for systems with stationary demand bounds and base stock policies. Hence, we c...

Journal: :European Journal of Operational Research 2013
Karl Inderfurth Stephanie Vogelgesang

We consider a manufacturer’s stochastic production/inventory problem under periodic review and present concepts for safety stock determination to cope with uncertainties that are caused by stochastic demand and different types of yield randomness. Order releases follow a linear control rule. Taking manufacturing lead times into account it turns out that safety stocks have to be considered that ...

2001
Maria Caridi Roberto Cigolini

This paper is aimed at filling the gap between theory and practice in the area of safety stocks under MRP environments. It is focused on providing a new methodology for dimensioning an overall buffer against uncertainty in market demand, which often plagues SMEs – that act as sub-contractors or suppliers within large projects or they have a reduced bargaining power – and adversely affects their...

Journal: :Journal of International Money and Finance 2019

Journal: :European Journal of Operational Research 2004
Ralph D. Snyder Anne B. Koehler Rob J. Hyndman J. Keith Ord

Exponential smoothing is often used to forecast lead-time demand for inventory control. In this paper, formulae are provided for calculating means and variances of lead-time demand for a wide variety of exponential smoothing methods. A feature of many of the formulae is that variances, as well as the means, depend on trends and seasonal effects. Thus, these formulae provide the opportunity to i...

2002
Arvid C. Johnson Nick T. Thomopoulos

To determine the safety stock required to achieve a desired service level, demands are commonly assumed to follow a normal probability distribution. However, since demands are necessarily truncated at values below zero, this paper will show that this approach underestimates the actual demand level and results in achieved service levels that are less than those targeted. Use of a left-truncated ...

Journal: :International Journal of Financial Research 2021

The impact of commercial airplane crashes on the shareholder wealth US-listed airline stocks has been focus many prior studies, but none have explored concomitant trading volume. We expand scope studies to include near crashes. examine 262 ‘incidents’ from 1962 2018 (220 with return evidence) and document a significant (negative) for fatalities casualties, an insignificant incidents no casualti...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید