scholarly journals An EPLS model for a variable production rate with stock-price sensitive demand and deterioration

2012 ◽  
Vol 22 (1) ◽  
pp. 19-30 ◽  
Author(s):  
T. Roy ◽  
K.S. Chaudhuri
Keyword(s):  
Production Rate ◽  
Stock Price ◽  
Selling Price ◽  
Lot Size ◽  
Deterioration Rate ◽  
Economic Production ◽  
Negative Impression ◽  
Parameter Values ◽  
Production Lot Size ◽  
Variable Production

It is observed that large piles of consumer goods displayed in supermarkets lead consumers to buy more, which generates more profit to sellers. But a large number of on-hand display of stock leaves a negative impression on the buyer. Also, the amount of shelf or display space is limited. Due to this reason, we impose a restriction on the number of on-hand display of stock and also on initial and ending on-hand stock levels. We introduce an economic production lot size model, where production rate depends on stock and selling price per unit. A constant fraction deterioration rate is considered in this model. To illustrate the results of the model, four numerical examples are established. Sensitivity analysis of the changes of parameter values is also given.

scholarly journals A finite horizon production model with variable production rates and constant demand rate

2002 ◽  
Vol 6 (2) ◽  
pp. 71-78 ◽  
Author(s):  
Zvi Goldstein
Keyword(s):  
Production Rate ◽  
Finite Horizon ◽  
Production Model ◽  
Maximum Speed ◽  
Lot Size ◽  
Production Problem ◽  
Demand Rate ◽  
The Cost ◽  
Production Lot Size ◽  
Variable Production

In this paper we present a finite horizon single product single machine production problem. Demand rate and all the cost patterns do not change over time. However, end of horizon effects may require production rate adjustments at the beginning of each cycle. It is found that no such adjustments are required. The machine should be operated either at minimum speed (i.e. production rate = demand rate; shortage is not allowed), avoiding the buildup of any inventory, or at maximum speed, building up maximum inventories that are controlled by the optimal production lot size.

scholarly journals Pengembangan Model Economic Production Quantity (EPQ) dengan Sinkronisasi Demand Kontinu dan Diskrit Secara Simultan

2016 ◽  
Vol 15 (1) ◽  
pp. 78 ◽  
Author(s):  
Nurike Oktavia ◽  
Henmaidi Henmaidi ◽  
Jonrinaldi Jonrinaldi
Keyword(s):  
Total Production ◽  
Lot Size ◽  
Inventory Cost ◽  
Economic Production Quantity ◽  
Economic Production ◽  
Holding Cost ◽  
Epq Model ◽  
Production Quantity ◽  
Set Up ◽  
Production Lot Size

The most popular inventory model to determine production lot size is Economic Production Quantity (EPQ). It shows enterprise how to minimize total production cost by reducing inventory cost. But, three main parameters in EPQ which are demand, machine set up cost, and holding cost, are not suitable to solve issues nowadays. When an enterprise has two types of demand, continue and discrete demand, the basic EPQ would be no longer useful. Demand continues comes from a customer who wants their needs to be fulfilled every time per unit time, while the fulfillment of demand discrete is at a fixed interval of time. A literature review is done by writers to observe other formulation of EPQ model. As there is no other research can be found which adopt this topic, this study tries to develop EPQ model considering two types of demand simultaneously.

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