Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent Demand

In this paper, we address an inventory system where the demand rate multiplicatively combines the effects of time and selling price. It is assumed that the demand rate is the product of two power functions, one depending on the selling price and the other on the time elapsed since the last inventory...

Full description

Bibliographic Details
Main Authors: Luis A. San-José, Joaquín Sicilia, Manuel González-de-la-Rosa, Jaime Febles-Acosta
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/16/1848
_version_ 1797523039895683072
author Luis A. San-José
Joaquín Sicilia
Manuel González-de-la-Rosa
Jaime Febles-Acosta
author_facet Luis A. San-José
Joaquín Sicilia
Manuel González-de-la-Rosa
Jaime Febles-Acosta
author_sort Luis A. San-José
collection DOAJ
description In this paper, we address an inventory system where the demand rate multiplicatively combines the effects of time and selling price. It is assumed that the demand rate is the product of two power functions, one depending on the selling price and the other on the time elapsed since the last inventory replenishment. Shortages are allowed and fully backlogged. The aim is to obtain the lot sizing, the inventory cycle and the unit selling price that maximize the profit per unit time. To achieve this, two efficient algorithms are proposed to obtain the optimal solution to the inventory problem for all possible parameter values of the system. We solve several numerical examples to illustrate the theoretical results and the solution methodology. We also develop a numerical sensitivity analysis of the optimal inventory policy and the maximum profit with respect to the parameters of the demand function.
first_indexed 2024-03-10T08:37:48Z
format Article
id doaj.art-21bb384900e645d6a1d38d49f0e2f401
institution Directory Open Access Journal
issn 2227-7390
language English
last_indexed 2024-03-10T08:37:48Z
publishDate 2021-08-01
publisher MDPI AG
record_format Article
series Mathematics
spelling doaj.art-21bb384900e645d6a1d38d49f0e2f4012023-11-22T08:32:50ZengMDPI AGMathematics2227-73902021-08-01916184810.3390/math9161848Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent DemandLuis A. San-José0Joaquín Sicilia1Manuel González-de-la-Rosa2Jaime Febles-Acosta3IMUVA-Mathematics Research Institute, University of Valladolid, 47011 Valladolid, SpainDepartment of Mathematics, Statistics and Operational Research, University of La Laguna, 38200 San Cristóbal de La Laguna, SpainDepartment of Business Administration and Economic History, University of La Laguna, 38200 San Cristóbal de La Laguna, SpainDepartment of Business Administration and Economic History, University of La Laguna, 38200 San Cristóbal de La Laguna, SpainIn this paper, we address an inventory system where the demand rate multiplicatively combines the effects of time and selling price. It is assumed that the demand rate is the product of two power functions, one depending on the selling price and the other on the time elapsed since the last inventory replenishment. Shortages are allowed and fully backlogged. The aim is to obtain the lot sizing, the inventory cycle and the unit selling price that maximize the profit per unit time. To achieve this, two efficient algorithms are proposed to obtain the optimal solution to the inventory problem for all possible parameter values of the system. We solve several numerical examples to illustrate the theoretical results and the solution methodology. We also develop a numerical sensitivity analysis of the optimal inventory policy and the maximum profit with respect to the parameters of the demand function.https://www.mdpi.com/2227-7390/9/16/1848EOQ inventory modelshortageslot sizingoptimal pricingprofit maximization
spellingShingle Luis A. San-José
Joaquín Sicilia
Manuel González-de-la-Rosa
Jaime Febles-Acosta
Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent Demand
Mathematics
EOQ inventory model
shortages
lot sizing
optimal pricing
profit maximization
title Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent Demand
title_full Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent Demand
title_fullStr Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent Demand
title_full_unstemmed Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent Demand
title_short Optimal Price and Lot Size for an EOQ Model with Full Backordering under Power Price and Time Dependent Demand
title_sort optimal price and lot size for an eoq model with full backordering under power price and time dependent demand
topic EOQ inventory model
shortages
lot sizing
optimal pricing
profit maximization
url https://www.mdpi.com/2227-7390/9/16/1848
work_keys_str_mv AT luisasanjose optimalpriceandlotsizeforaneoqmodelwithfullbackorderingunderpowerpriceandtimedependentdemand
AT joaquinsicilia optimalpriceandlotsizeforaneoqmodelwithfullbackorderingunderpowerpriceandtimedependentdemand
AT manuelgonzalezdelarosa optimalpriceandlotsizeforaneoqmodelwithfullbackorderingunderpowerpriceandtimedependentdemand
AT jaimefeblesacosta optimalpriceandlotsizeforaneoqmodelwithfullbackorderingunderpowerpriceandtimedependentdemand