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Ms. Damla İzmirli
Yasar University

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Research Keywords & Expertise

0 E-commerce
0 Inventory Control
0 omni-channel
0 inventory share
0 (s, S) inventory

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Short Biography

Damla İzmirli is a computer engineer, graduated from the Department of Computer Engineering, at Yasar University in Izmir, Turkey. She continues her master's degree in the Department of Industrial Engineering at Yaşar University. She continues her thesis focusing on the simulation modeling of an omni-channel inventory system under the consultancy of Dr. Banu Y. Ekren. Her research interests include logistic, warehousing, e-commerce, omni-channel, and, applications of simulation- optimization in the supply chain.

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Journal article
Published: 07 March 2021 in Sustainability
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In this paper, we study inventory share policies in an omni-channel supply network, to contribute to the circular economy (CE) concept. Lateral inventory share implementation provides flexibility and profitability in the supply chain by allowing inventory share between the same echelon locations in a network. Total holding costs and transportation costs can be reduced by lateral inventory share applications, which also contribute to decreased material usage for production over time, as well as reduced CO2 emission released by transportation. Technological and Internet of Things (IoT) developments make it possible for companies to share their real-time information with each other for uninterrupted marketing experiences. With such a connected network, companies aim to increase their profitability and responsiveness to their customers. We explore a well-designed inventory share policy towards the CE concept under an (s, S) inventory control policy. We simulate several pre-defined share designs by Arena 16.0 commercial software and compare their performances in terms of cost, responsiveness, transportation frequency, inventory held, etc. The results show that, by the implementation of a well-designed lateral inventory share policy, an omni-channel network can benefit from decreased holding cost and transportation cost, contributing to the CE concept.

ACS Style

Damla Izmirli; Banu Ekren; Vikas Kumar; Siwarit Pongsakornrungsilp. Omni-Chanel Network Design towards Circular Economy under Inventory Share Policies. Sustainability 2021, 13, 2875 .

AMA Style

Damla Izmirli, Banu Ekren, Vikas Kumar, Siwarit Pongsakornrungsilp. Omni-Chanel Network Design towards Circular Economy under Inventory Share Policies. Sustainability. 2021; 13 (5):2875.

Chicago/Turabian Style

Damla Izmirli; Banu Ekren; Vikas Kumar; Siwarit Pongsakornrungsilp. 2021. "Omni-Chanel Network Design towards Circular Economy under Inventory Share Policies." Sustainability 13, no. 5: 2875.

Journal article
Published: 01 December 2020 in Sustainability
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This paper studies inventory share policies for sustainable omni-channel e-commerce supply network design by seeking for a good integration policy of online and offline retailers so that the overall supply network reduce its cost, environmental negative impacts by the decreased number of shipments from the main depot, and increase its responsiveness. By the recent advancement in information technologies and internet use, e-commerce practice gained popularity also to keep up with the competitive environment. The increased competitive supply chain environment has revealed the business-to-business (B2B) concepts enabling business applications between companies. Strategic alliance is a partnership concept realized between two or more organizations ensuring that stages are managed with consideration of the welfare of the others in the whole network. By considering that there are inventory share policies between stages, we accept the existence of strategic alliance implementation in the network, aiming to increase total network flexibility and profitability as well as sustainability in the network. In the study, we research inventory share policies towards strategic alliance concept to have a network design with a decreased negative effect of demand uncertainty and increased profitability in the network. By inventory share policies, businesses share their current inventories with the others so that transportation cost and CO2 emission caused by traffic intensity is decreased in the network. We propose six inventory share policy combinations and optimize the (s, S) inventory levels under those policies by minimizing total network cost. We utilize the simulation modeling approach for the modeling purpose. We compare the policy results based on the total network cost, the total number of shipments completed from the main warehouse, and total lost sale cost, etc., at the optimal levels and suggest the best policy design.

ACS Style

Damla Izmirli; Banu Ekren; Vikas Kumar. Inventory Share Policy Designs for a Sustainable Omni-Chanel E-Commerce Network. Sustainability 2020, 12, 10022 .

AMA Style

Damla Izmirli, Banu Ekren, Vikas Kumar. Inventory Share Policy Designs for a Sustainable Omni-Chanel E-Commerce Network. Sustainability. 2020; 12 (23):10022.

Chicago/Turabian Style

Damla Izmirli; Banu Ekren; Vikas Kumar. 2020. "Inventory Share Policy Designs for a Sustainable Omni-Chanel E-Commerce Network." Sustainability 12, no. 23: 10022.