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    Wyświetlanie 1-7 z 7
    Tytuł:
    An EOQ model for deteriorating items with time-dependent exponential demand rate and penalty cost
    Autorzy:
    Kumar, Sushil
    Powiązania:
    https://bibliotekanauki.pl/articles/406387.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    inventory
    deterioration
    penalty cost
    time-dependent exponential demand rate
    Opis:
    The present paper deals with an EOQ model for deteriorating items with time-dependent exponential demand rate and partial backlogging. Shortages are allowed and completely backlogged in this model. The backlogging rate of unsatisfied demand is assumed as a function of waiting time. The concept of penalty cost is introduced in the proposed model because there are many perishable products that do not deteriorate for some period of time and after that period they continuously deteriorate and lose their values. This loss can be incurred as penalty cost to the wholesalers/retailers. In any business organization, the penalty cost has an important role for special types of seasonal products and short life products. Therefore, the total cost of the product can be reduced by maximizing the demand rate and minimizing the penalty cost during a given period of time. The purpose of our study is to optimise the total variable inventory cost. A numerical example is also given to show the applicability of the developed model.
    Źródło:
    Operations Research and Decisions; 2019, 29, 3; 37-49
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An inventory model for generalized Weibull deteriorating items with price dependent demand and permissible delay in payments under inflation
    Model zarządzania zapasem Weibulla dla popytu zależnego od cen oraz opóźnień w płatności w warunkach inflacji
    Autorzy:
    Singh, S. P.
    Panda, G. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/362263.pdf
    Data publikacji:
    2015
    Wydawca:
    Wyższa Szkoła Logistyki
    Tematy:
    inventory
    inflation
    Weibull distribution
    selling price dependent demand
    delay in payment
    zapasy
    inflacja
    dystrybucja Weibulla
    popyt zależny od ceny zbytu
    opóźnienie w płatności
    Opis:
    This paper derives an inventory model is developed for items that deteriorates at a generalized Weibull distributed rate when demand for the items is dependent on the selling price. Shortages are not allowed and price inflation is taken into consideration over finite planning horizon. A brief analysis of the cost involved is carried out by theoretical analysis.
    Praca przedstawia opracowanie modelu zarządzania zapasem dla towarów, które ulegają zużyciu zgodnie z modelem Weibulla, i których popyt zależny jest od ceny sprzedaży. Braki nie są dozwolone. Czynnik inflacji został uwzględniony dla określonego horyzontu czasowego. Została przeprowadzona krótka teoretyczna analiza kosztów.
    Źródło:
    LogForum; 2015, 11, 3; 259-266
    1734-459X
    Pojawia się w:
    LogForum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An inventory model with price and credit installments-dependent demand
    Autorzy:
    Hasan, Md. Rakibul
    Siddiqa, Mst. Ayesha
    Roy, Tutul Chandra
    Al-Amin, Md.
    Daryanto, Yosef
    Powiązania:
    https://bibliotekanauki.pl/articles/27315579.pdf
    Data publikacji:
    2023
    Wydawca:
    STE GROUP
    Tematy:
    inventory
    pricing
    installment-dependent demand
    trade credit
    Opis:
    Financial capability is one of the primary drivers for buyers to make purchases. Therefore, sellers must set an optimum selling price and consider trade credit facilities to attract more demand. This paper proposes an inventory decision model in which customer demand depends on the price and number of credit installments to serve low-abled buyers. This study has developed a demand function with a positive impact on installment policies and the effect of the selling price. Two models have been formulated to optimize the selling price and positive stock time, m total profit, with and without installment policies. Then, numerical examples and sensitivity analysis illustrate the proposed model for different cases. The study has found that the selling price and positive stock time can be optimized. Profits can be higher in the case of an installment facility than in the case without an installment facility. It shows positive responses from the buyer to the installment policy.
    Źródło:
    Management Systems in Production Engineering; 2023, 2 (31); 111--127
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Coordinated production, ordering, shipment and pricing model for supplier-retailer inventory system under trade credit
    Autorzy:
    Shah, Nita H.
    Naik, Monika K.
    Powiązania:
    https://bibliotekanauki.pl/articles/406551.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    defective item
    production inventory system
    supply chain of two players
    time-price
    credit
    dependent demand
    element uszkodzony
    system inwentaryzacji produkcji
    łańcuch dostaw
    kredyt
    popyt zależny
    Opis:
    The objective of this article is to maximize the joint profit for supplier and retailer by constructing a combined supplier–retailer inventory model wherein supplier and retailer both have implemented trade credit policies, and some defective items are received by the retailer. The customer’s demand is expressed as a function of time, price and credit period, which is appropriate for the products for which demand increases initially and after some time it starts to decrease. Production, directly proportional to the customer’s demand rate, is considered as one of the decision variables for the purpose of reducing the holding cost of the supplier. The article estimates the optimum replenishment cycle, customer’s credit period, retail selling price by a classical optimization technique. For validation of the derived model, various numerical examples are demonstrated. Finally, implementing sensitivity analysis on the decision variables by varying the inventory parameters, effective managerial insights are generated which is beneficial for the players of supply chain by practically gaining the maximum joint profit through advising to opt for the case N ≤ M ≤ T , i.e., when the customer’s trade credit period offered by the retailer is lesser than the retailer’s trade credit period offered by the supplier and which is lesser than the replenishment cycle length.
    Źródło:
    Operations Research and Decisions; 2019, 29, 2; 55-76
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of an EPQ model in an imprecise environment with defuzzification by the centroid method under inflation
    Autorzy:
    Arora, Ritu
    Chauhan, Anand
    Sharma, Renu
    Singh, Anubhav Pratap
    Powiązania:
    https://bibliotekanauki.pl/articles/2175846.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    fuzzy production inventory model
    selling price dependent demand
    inflation
    triangular fuzzy number
    trapezoidal fuzzy number
    centroid method
    Opis:
    The awareness of making decisions in an imprecise environment has resulted in considering the inventory system under a fuzzy approach. The effects of uncertain demand have been finding increased application in many inventory systems. Uncertainty creates complicated situations for the manufacturer in making decisions. Markets have become more competitive as a result of technological advancements. The effect of inflation on the overall cost of the inventory system is useful in providing a tool for the analysis of inventory decisions. This study intended to estimate the effect of different fuzzy numbers on a manufacturer's annual joint expected total cost. The comparative study of this proposed model has been considered for two different fuzzy numbers with the defuzzification technique as the centroid method. The optimization technique has been used to minimize the producer’s joint expected total cost under the condition mentioned earlier, and the model is validated numerically.
    Źródło:
    Operations Research and Decisions; 2022, 32, 3; 32--48
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of Channel Profit for Deteriorating Items when Trade Credit Linked to Order Quantity
    Autorzy:
    Sanas, Yogita
    Kawale, Sunil
    Lahji, Abdul Aziz
    Powiązania:
    https://bibliotekanauki.pl/articles/1177859.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Deterioration
    Integrated Inventory Model
    Order Quantity Dependent Trade Credit
    Time Dependent Demand
    Opis:
    In this article, an attempt is made to optimize the joint total profit per unit time of vendor – buyer supply chain system where vendor offers different trade credit depends on order quantity to the buyer. Here items in the inventory are deteriorates with constant rate and demand is a linear function of time. Vendor is establishing threshold for allowing trade credit comprehensively to ensure the greatest benefit for both players. By analyzing total channel profit function, we developed the optimal solution to provide buyer’s order quantity and replenishment time. Numerical examples and sensitivity analysis are given to illustrate the theoretical results, and some managerial insights are also obtained.
    Źródło:
    World Scientific News; 2018, 98; 100-114
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theory of inventory management based on demand forecasting
    Teoria zarządzania zapasami bazująca na prognozowaniu popytu
    Autorzy:
    Kot, S.
    Grondys, K.
    Szopa, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/406243.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Częstochowska
    Tematy:
    zapasy zależne
    zapasy niezależne
    prognozowanie popytu
    dependent inventory
    demand forecasting
    independent inventory
    Opis:
    Efficient management of supply chains consists in particular in ensuring possibly highest quality of customer service and striving for minimization of the costs generated by flow between the links. Typical cause of constantly increasing costs is excessive inventory levels throughout the chain. The reason for this situation is maladjustment of the level of supply to the level of demand in the market, which results in surplus stock. The starting point for reduction in inventory levels is forecasting of demand in the market through market prognoses in cooperation with all the links in the supply chain. Therefore, in the aspect of demand forecasting, the character of data flow and the type of cooperation between the links is essential.
    Efektywne zarządzanie łańcuchami dostaw polega przede wszystkim na zapewnieniu możliwie najwyższej jakości obsługi klienta oraz dążenie do minimalizacji kosztów generowanych przez przepływ pomiędzy jego ogniwami. Typowymi przyczynami stale rosnących kosztów jest nadmierny poziom zapasów w całym łańcuchu. Powodem takiej sytuacji jest niedostosowanie poziomu dostaw do poziomu popytu na rynku, co prowadzi do gromadzenia nadmiernych zapasów. Punktem wyjścia do obniżenia poziomu zapasów jest prognozowanie popytu na rynku poprzez prognozy rynku we współpracy z wszystkimi ogniwami łańcucha dostaw. Dlatego też w aspekcie prognozowania popytu istotne są, charakter przepływu danych jak i rodzaj współpracy między poszczególnymi ogniwami.
    Źródło:
    Polish Journal of Management Studies; 2011, 3; 147-155
    2081-7452
    Pojawia się w:
    Polish Journal of Management Studies
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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