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Keywords = zinc refining firms

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13 pages, 450 KiB  
Article
Efficiency Analysis of Zinc Refining Companies
by Ha Sung Park, Tae Youn Kim and Daecheol Kim
Sustainability 2019, 11(22), 6528; https://doi.org/10.3390/su11226528 - 19 Nov 2019
Cited by 4 | Viewed by 3542
Abstract
Most global zinc firms consist of multiple refineries with various production capacities. However, it is known that efficiency and Bonus Zn are mostly dependent on a firm’s production capacity. Thus, it is important to examine whether there is knowledge transfer of efficiencies and [...] Read more.
Most global zinc firms consist of multiple refineries with various production capacities. However, it is known that efficiency and Bonus Zn are mostly dependent on a firm’s production capacity. Thus, it is important to examine whether there is knowledge transfer of efficiencies and Bonus Zn among refineries within the same company, even if their production capacities are quite different. The Data Envelopment Analysis (DEA) is used to measure efficiency scores of forty-two zinc refineries. To examine whether there is a knowledge transfer about efficiency and Bonus Zn within a firm, a propensity score model is newly applied. Additionally, a regression model is utilized to identify whether this propagation is more effective if refineries are in the same country. It is found that about 86% of the refineries are inefficient, which indicates that there is much room for refineries to improve their performance. From the result, it is identified that the knowledge of efficiency and Bonus Zn is transferred within the company. This transfer is particularly influential when both refineries are located in the same country. We also find that firm’s revenue can be maximized when efficiency is high and the production capacity and/or Bonus Zn are significant. Full article
(This article belongs to the Special Issue Sustainability in 2nd IT Revolution with Dynamic Open Innovation)
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