Showing 1 - 10 of 21
Absztrakt: A klasszikus tételnagyság probléma két fontosabb készletezési költséget ragad meg: rendelési és készlettartási költségek. Ebben a dolgozatban a vállalatok készpénz áramlásának a beszerzési tevékenységre gyakorolt hatását vizsgáljuk. Ebben az elemzésben a...
Persistent link: https://www.econbiz.de/10010123859
Abstract: Supplier assessment is widely studied in the literature as it is an important means of managing supplier relationships. Based on literature results our paper examines the extension of the vendor evaluation methods with environmental, green issues. This generalization means an extension...
Persistent link: https://www.econbiz.de/10010124638
Deterministic EOQ-type two-store reverse logistics systems was studied extensively in the literature. All this proposition assumed a predetermined control system and searched the optimal parameters for this control systems. There are no results regarding the structure of optimal policies. The...
Persistent link: https://www.econbiz.de/10010123608
A production-recycling system is investigated. A constant demand can be satisfied with production and recycling. The used items are bought back and then recycled. The not recycled products are disposed off. It is analyzed two types of models. The first model examines the EOQ related costs and...
Persistent link: https://www.econbiz.de/10010123609
The aim of the paper is to investigate a reverse logistics model. Schrady (1967) has examined a model with two stores, where the returned items are repaired then used as new one. The not repairable items are disposed of and the required products are procured. The author has analyzed the model...
Persistent link: https://www.econbiz.de/10010123613
The aim of the paper is to investigate the model of Richter (1996). The model examines a reverse logistics problem. The proposed inventory holding policy in this model was predetermined. We will show that the proposed predetermined policy is optimal, as well. ; Richter (1996) egy két műhelyes...
Persistent link: https://www.econbiz.de/10010123617
A cikk a szennyezési jogok bevezetését vizsgálja a mikroökonómia standard vállalatára. Komparatív statikai vizsgáljuk, a termelő vállalat lehetséges reakcióit, amely a technológia változatlanul hagyása, vagy megváltoztatása lehet. Az egyes esetekben arra keresünk választ,...
Persistent link: https://www.econbiz.de/10010123631
A dolgozat egy javítási és hulladékkezelési, reverz logisztikai problémát mutat be. Egy termék iránti keresletet termeléssel és visszaérkező, használt termékek javításával lehet kielégíteni. Arra a kérdésre keressük a választ, hogy a releváns költségek minimalizálása...
Persistent link: https://www.econbiz.de/10010123632
Despite known simplifications the input-output analysis is an effective tool to investigate the environmental impacts of the producing economy on the natural environment. The emission of pollutants is introduced direct in the model studied as joint products of the process of production. The...
Persistent link: https://www.econbiz.de/10010123646
In this paper we study a generalisation of the dynamic Leontief input-output model. We extend the standard dynamic Leontief model with the balance equation of non-renewable resources. Obviously the non-renewable stocks will decrease exploiting primary resources. In this study we examine the...
Persistent link: https://www.econbiz.de/10010123647