Improving the waste supply chain, a case of South Korea 2012–2021: stochastic frontier analysis, artificial neural network, and grey-incidence approach

Leo Hong (), Gawon Yun () and Douglas N. Hales ()
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Leo Hong: Millersville University
Gawon Yun: Missouri State University
Douglas N. Hales: University of Rhode Island

Annals of Operations Research, 2025, vol. 351, issue 3, No 5, 1883-1923

Abstract: Abstract This study investigates the efficiency and performance of waste supply chain management across eight major South Korean cities, focusing on the interplay between input variables, inefficiency determinants, and waste processing outputs. Employing a multidisciplinary framework grounded in Resource-Based View, Environmental Justice Theory, and Systems Theory, the research utilizes Stochastic Frontier Analysis (SFA), Grey Incidence Analysis (GIA), and Artificial Neural Network (ANN) to evaluate the relative importance of various influencing factors. SFA estimate results highlight that budget and manpower productivity significantly contribute to efficiency, while disparities in budget allocation and outdated infrastructure contribute to inefficiencies. GIA underscores the dominance of commercial incineration and landfill performance, driven by strict industrial regulations and waste-to-energy initiatives. Conversely, commercial recycling and domestic landfill perform the worst. ANN reveals that budget productivity and manpower productivity have stronger and more impactful relationships with efficiency scores in cities like Seoul, Busan, and Incheon. On the inefficiency side, high facility installation costs, operation costs, and miscellaneous costs demonstrate significant negative impact on overall effectiveness across multiple cities.

Keywords: Waste management; Environmental sustainability; Efficiency; Stochastic frontier analysis; Artificial neural network; Grey incidence analysis (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s10479-025-06761-y

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