ANALYZING THE BEHAVIOR OF COMPETING FIRMS IN MARKETS WITH PRICE-LEAD TIME-AND INVENTORY LEVEL-SENSITIVE DEMAND

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Hami Dindar a.; TALEIZADEH A.

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Paper Information

Journal: INDUSTRIAL ENGINEERING & MANAGEMENT SHARIF (SHARIF: ENGINEERING) Year:2019 | Volume:34-1 | Issue:2/1 Page(s): 77-88

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Title

ANALYZING THE BEHAVIOR OF COMPETING FIRMS IN MARKETS WITH PRICE-LEAD TIME-AND INVENTORY LEVEL-SENSITIVE DEMAND

Author(s)

Hami Dindar a. | TALEIZADEH A. | Issue Writer Certificate

Keywords

Inventory controlQ1

pricingQ1

lead timeQ1

game theoryQ1

Abstract

In today's competitive world, decision making for pricing, Inventory control policy and lead time, are important challenging issues in non-exclusive markets. The lead time should be determined in a way that inventory of firms, can provide the market demand and also it should not be too long. This study examines the behavior of firms face to variables demand rate depending on selling price, lead time and the inventory level. The model has been extended for a single product in supply chain. Here is assumed that the shortage is not allowed and market demand is a function of the amount of inventory and price of goods sold. This problem is analyzed and mathematically modeled under two scenarios. In the first scenario the effects of price, lead time and inventory on hand in a single company has been investigated and in the second scenario, the behavior of two competing firms in a non-exclusive market, using the Nash approach is analyzed. Where, both firms, without being informed by each other are competing under a non-cooperative game and each of them is trying to maximize the profit function. Decisions about the appropriate lead time, selling prices and inventory levels as decision variables of the problem are made so that the firm's profit is maximized. In numerical examples section, for each of decision variables and parameters of the model, some comparisons have done and the optimal values are obtained. Moreover, sensitive analysis conducted on various parameters of problem. Finally, from sensitivity analysis, we observed that with setting the price elasticity and inventory elasticity of demand, lead time can be managed and maximum profit is achieved. The results of numerical examples indicate that the maximum profit for the firms in the second scenario is achieved when the share of both firms, in providing the required inventory of market is equal. From the sensitivity analysis if other parameters are remained constant, when lead time is increased, the inventory levels increases and lead to a prolonged response.

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APA: Copy

Hami Dindar, a., & TALEIZADEH, A.. (2019). ANALYZING THE BEHAVIOR OF COMPETING FIRMS IN MARKETS WITH PRICE-LEAD TIME-AND INVENTORY LEVEL-SENSITIVE DEMAND. INDUSTRIAL ENGINEERING & MANAGEMENT SHARIF (SHARIF: ENGINEERING), 34-1(2/1 ), 77-88. SID. https://sid.ir/paper/107732/en

Vancouver: Copy

Hami Dindar a., TALEIZADEH A.. ANALYZING THE BEHAVIOR OF COMPETING FIRMS IN MARKETS WITH PRICE-LEAD TIME-AND INVENTORY LEVEL-SENSITIVE DEMAND. INDUSTRIAL ENGINEERING & MANAGEMENT SHARIF (SHARIF: ENGINEERING)[Internet]. 2019;34-1(2/1 ):77-88. Available from: https://sid.ir/paper/107732/en

IEEE: Copy

a. Hami Dindar, and A. TALEIZADEH, “ANALYZING THE BEHAVIOR OF COMPETING FIRMS IN MARKETS WITH PRICE-LEAD TIME-AND INVENTORY LEVEL-SENSITIVE DEMAND,” INDUSTRIAL ENGINEERING & MANAGEMENT SHARIF (SHARIF: ENGINEERING), vol. 34-1, no. 2/1 , pp. 77–88, 2019, [Online]. Available: https://sid.ir/paper/107732/en

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