Article
Automation & Control Systems
F. -B. Liu, C. -F. Hu
Summary: This study proposes a fuzzy game approach network data envelopment analysis model to evaluate waste management performance, addressing the uncertainty in many circular indicators. The model maximizes the potential joint efficiencies of production and recycling processes from the perspective of centralized control and circular economy. A real-case study on European Union waste management performance is conducted, providing valuable information for policy makers to promote waste management hierarchy and achieve waste reuse, recycling, and energy recovery.
INTERNATIONAL JOURNAL OF FUZZY SYSTEMS
(2023)
Article
Management
Nasim Nasrabadi, Akram Dehnokhalaji, Pekka Korhonen, Banu Lokman, Jyrki Wallenius
Summary: This paper focuses on analyzing the robustness of efficiency scores in DEA with interval scale data, defining efficiency scores and examining their robustness to improvements and deteriorations in inputs and outputs. The analysis is illustrated with examples using both numerical and real-world data.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2022)
Article
Economics
Gary Chamberlain
Summary: This study relaxes the assumption of strict exogeneity in panel data analysis to allow for lagged dependent variables and feedback from lagged dependent variables to current predictor variables. An information bound is derived for a semiparametric regression model and applied to a model with a multiplicative random effect. The study also addresses identification issues when the random effect is a vector with two or more components.
JOURNAL OF ECONOMETRICS
(2022)
Review
Computer Science, Interdisciplinary Applications
Ankita Panwar, Maryam Olfati, Millie Pant, Vaclav Snasel
Summary: This paper summarizes the applications and development trends of Data Envelopment Analysis (DEA) in the past 40 years, discusses the advantages and limitations of DEA models, and explores the various fields where DEA has been applied. It also includes a bibliometric analysis to demonstrate the publication trends and impact of DEA.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2022)
Article
Environmental Sciences
Mengling Zhou, Yaojun Ye, Yaru Huang
Summary: The problem of environmental pollution is becoming increasingly prominent, and the traditional methods of assessing the effectiveness of ecological governance are no longer suitable. This study introduces a new index system and model to measure and evaluate the green governance efficiency of 30 provinces in China from different perspectives. The results show that external environmental factors and technological progress efficiency have a significant impact on green governance effectiveness, and targeted suggestions for governance in different regions are provided.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Management
David Jose Cova-Alonso, Juan Jose Diaz-Hernandez, Eduardo Martinez-Budria
Summary: The article introduces a new efficiency measure to overcome the drawbacks of the Farrell technical efficiency measure. By accounting for all non-zero slacks in inputs and outputs, the new measure helps in correctly classifying production units and measuring inefficiency, thus enhancing business management decision-making.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Shiwen Yin, Zhiwen Gong, Li Gu, Yuanjie Deng, Yujia Niu
Summary: This study analyzed the dynamic changes and influencing factors of forest carbon sequestration efficiency at the provincial level in China, revealing regional differences in carbon sequestration potential and efficiency. It suggests enhancing carbon sinks in regions with high efficiency and respecting natural laws in regions with low efficiency, as well as promoting forestry technology services.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biotechnology & Applied Microbiology
Hailin Feng, Zhen Liu, Jian Wu, Wasim Iqbal, Wasim Ahmad, Mohamed Marie
Summary: In response to global climate change and the economic crisis, the concept of the green economy has gained importance in mainstream politics and business. The green Belt and Road Initiative (BRI) is crucial for achieving a sustainable transition in the regional economy, and this study finds that government expenditure has a positive and significant effect on green economic performance.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Business, Finance
Antonio Afonso, Joao Tovar Jalles, Ana Venancio
Summary: We provide government spending efficiency scores for OECD countries and examine how capital markets perceive efficiency changes in determining sovereign ratings. Our analysis shows that higher public spending efficiency is rewarded with higher sovereign debt ratings. Additionally, inflation and government indebtedness lead to rating downgrades, while higher foreign reserves contribute to rating upgrades.
JOURNAL OF INTERNATIONAL FINANCIAL MARKETS INSTITUTIONS & MONEY
(2022)
Article
Environmental Sciences
Rong Wang, Qizhen Wang, Shuangliang Yao
Summary: The overall level of energy efficiency in China is relatively low, with significant regional differences and an increasing trend from west to east. The Theil coefficient increased before 2012 and began to show a downward trend in 2013, with the eastern region maintaining the smallest decrease in differences among the three regions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Marine
Jose Ignacio Parra Santiago, Alberto Camarero Orive, Nicoletta Gonzalez Cancelas
Summary: The Spanish port system undergoes a DEA-Bootstrapping analysis to compare its operational and financial efficiency with two other scenarios: one based on port clusters formed by grouping ports due to proximity, and another based on seafronts. The results favor these scenarios over the current situation, showing improved operational and financial efficiency.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Business, Finance
Catarina Proenca, Mario Augusto, Jose Murteira
Summary: This study investigates the impact of earnings management on the efficiency of Eurozone banks. The results show that earnings management, defined as discretionary loan loss provisions, has a negative impact on efficiency. However, when non-discretionary provisions are considered, loan provisions have a positive impact on allocative efficiency.
FINANCE RESEARCH LETTERS
(2023)
Article
Mathematics
Dineswary Nadarajan, Saber Abdelall Mohamed Ahmed, Noor Fadiya Mohd Noor
Summary: This study collects data from 2018 to 2020 and uses data envelopment analysis (DEA) to measure seaport network efficiency based on the Liner Shipping Connectivity Index (LSCI) using fuzzy DEA. The comparison between DEA and fuzzy DEA shows small differences in the results. Fuzzy regression modelling based on the Possibilistic Linear Regression Least Squares (PLRLS) method is also performed to estimate the interval of minimum and maximum connectivity efficiencies.
Article
Psychology, Multidisciplinary
Yu-Chuan Chen, Yung-Ho Chiu, Tzu-Han Chang, Tai-Yu Lin
Summary: Today's society is challenged by unbalanced development caused by climate change, economic growth, social equality, and wealth disparity. A good government should consider the needs and feelings of the people in addition to efficiency. This research evaluates the government efficiency and public satisfaction efficiency of local governments in Taiwan from 2016 to 2019, and explores the correlation between public evaluation and governance effectiveness.
JOURNAL OF HAPPINESS STUDIES
(2023)
Article
Operations Research & Management Science
Thanasis Bouzidis, Giannis Karagiannis
Summary: This study aims to compare and challenge the efficiency scores calculation methods under the proportional output reduction strategy, using the Target's Assessment Theorem and three different data sets.
OPERATIONAL RESEARCH
(2022)
Article
Economics
Victor Gimenez, Claudio Thieme, Diego Prior, Emili Tortosa-Ausina
Summary: Early intervention in quality education is a way to promote equal opportunities, and preschool education has become an important focus of public policy. This study evaluates the performance of preschool education centers in Chile that cater to children from lower socioeconomic families and proposes a valid methodology for decision making. It also quantifies the levels of effectiveness and emphasizes the importance of targeting efforts on centers that are more likely to have lower levels of effectiveness due to structural conditions.
SOCIO-ECONOMIC PLANNING SCIENCES
(2022)
Article
Economics
Trang Thi Thuy Nguyen, Binh Thai Pham, Diego Prior, Stefan van Hemmen
Summary: This study examines the impact of tax complexity on the ease of doing business and foreign direct investment. The findings suggest that the relative efficiency of tax systems has been improving over time, with a convergence of tax simplification trend. Switzerland is the most efficient country, while Norway has a feasible practice and model in this area.
SOCIO-ECONOMIC PLANNING SCIENCES
(2022)
Article
Economics
Alexei Arbona, Victor Gimenez, Sebastian Lopez-Estrada, Diego Prior
Summary: This study uses the metafrontier Malmquist-Luenberger index to measure changes in the productivity of schools in the Colombian education system. The results indicate deterioration in both public and private schools, with significant gaps between different subjects.
SOCIO-ECONOMIC PLANNING SCIENCES
(2022)
Article
Engineering, Environmental
Cristina Maria Campos-Alba, Juan Carlos Garrido-Rodriguez, Ana Maria Plata-Diaz, Gemma Perez-Lopez
Summary: This study analyzed the efficiency of waste management services in Spain from 2005 to 2015, finding that cost efficiency is increased by selective collection and certain political and socioeconomic factors. Municipal direct provision was identified as the least efficient management form for this service.
Article
Business, Finance
Jose Manuel Vela-Bargues, Fernando Polo-Garrido, Emilio J. de la Higuera, Gemma Perez-Lopez
Summary: The objective of this study is to evaluate the impact of the level of implementation of external auditing and the degree of information transparency on political corruption in the Spanish Autonomous Public Administration. The results show a significant relationship between the level of external audit implementation and transparency, but neither auditing nor transparency has a direct significant influence on corruption, except when partial audit and transparency indexes are considered.
REVISTA DE CONTABILIDAD-SPANISH ACCOUNTING REVIEW
(2022)
Article
Political Science
Luis-Alberto Casado-Aranda, Emilio Jose de la Higuera-Molina, Juan Sanchez-Fernandez, Jose Luis Zafra-Gomez
Summary: Governments, political parties, and public institutions frequently run communication campaigns to emphasize their successes, promote democratic participation, encourage the use of public services, and seek to boost electoral support. Through the use of neuropolitics, researchers have found that brain networks associated with reward and positive values explain the pro-public sector bias, while mechanisms related to aversion, risk, ambiguity, and motivated reasoning are associated with an anti-public-sector bias.
POLITICAL BEHAVIOR
(2023)
Article
Business
Fernando Angulo-Ruiz, Naveen Donthu, Diego Prior, Josep Rialp-Criado
Summary: This study examines whether the funding behavior of companies differs during a recession. The findings suggest that firms tend to rely more on debt to fund marketing capabilities during recessions, especially when they have higher strategic financial flexibility. Additionally, internal financing and signals from past stock returns are used to fund long-term marketing capabilities.
EUROPEAN JOURNAL OF MARKETING
(2022)
Article
Management
Alexei Arbona, Sebastian Lopez-Estrada, Diego Prior, Josep Rialp
Summary: In this study, the impact of various types of private contributions to public schools on their performance is evaluated. It is argued that greater involvement of businesses in their social role is crucial for accelerating development goals. While existing literature has measured the effects of private aid to education on an individual level, this study provides an aggregate measure of simultaneous interventions. Using a benchmarking approach on a sample of 269,117 Colombian students from 1,224 schools, with 53% receiving some form of assistance, the findings suggest that stimulating companies to participate in solving development problems and considering social criteria can improve resource allocative efficiency. The study also highlights the need for a consistent accountability process to quantify the real impact of these contributions.
JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY
(2023)
Article
Engineering, Industrial
Asta Pundziene, Neringa Gerulaitiene, Sea Matilda Bez, Irene Georgescu, Christopher Mathieu, Jordi Carrabina-Bordoll, Josep Rialp-Criado, Hannu Nieminen, Alpo Varri, Susanne Boethius, Mark van Gils, Victor Gimenez-Garcia, Isabel Narbon-Perpina, Diego Prior-Jimenez, Laura Vilutiene
Summary: This study examines the impact of a social-purpose-driven ecosystem on value capture from digital health platforms. The social-purpose-driven ecosystem is characterized by seeking social impact before profits and empowering citizens for individual and collective well-being. The study finds that capturing value from digital healthcare platforms embedded in a social-purpose-driven ecosystem requires considering unique contingencies such as multilayer value creation, multipurpose complementary assets, emerging dominant design, and distributed socio-economic returns mechanisms. The study emphasizes the importance of acknowledging the contextual effect of a social-purpose-driven ecosystem and highlights the factors that can positively affect value capture from digital healthcare platforms.
Article
Green & Sustainable Science & Technology
Jose-Luis Zafra-Gomez, German Lopez-Perez, Marta Garrido-Montanes, Elisabeth Zafra-Gomez
Summary: This paper aims to improve the efficiency of local public services by studying different forms of management. The research finds that public-private partnership contracting is less efficient on waste removal services when considering quality. However, the promised benefits of contracting out can be realized when contractors are made responsive to service quality through concessions.
Article
Business, Finance
Juan Piedra-Pena, Diego Prior
Summary: The study aims to evaluate the impact of health reforms on the efficiency of public hospitals in Ecuador since 2008. It provides new insights on the effects of policies promoting health equity and universal coverage on healthcare efficiency in developing countries. The study uses a two-stage approach, utilizing factor and cluster analysis to classify hospitals and Data Envelopment Analysis to estimate efficiency measures over time. The results show a significant decline in efficiency for low and intermediate technology hospitals after the adoption of the new constitution in 2008, coinciding with the reforms in 2010 and 2011 that expanded social security coverage.
INTERNATIONAL JOURNAL OF HEALTH ECONOMICS AND MANAGEMENT
(2023)
Review
Business
German Lopez Perez, Isabel Maria Garcia Sanchez, Jose Luis Zafra Gomez
Summary: This paper contributes to the current knowledge on the impact of eco-innovation strategies on corporate performance by analyzing and synthesizing the different positions found in the literature. The results show that the impact of eco-innovation is not generalizable due to various factors, and the size and environment of the company are conditioning factors. Further research is encouraged to shed more light on this field.
BUSINESS STRATEGY AND THE ENVIRONMENT
(2023)
Article
Public Administration
Gemma Perez-Lopez, Carolyn-Thi Thanh Dung Tran, Brian Dollery
Summary: This paper examines the cost of waste services under inter-municipal co-operation and stand-alone production by local councils in Spain. It finds that co-operation leads to significant cost savings and identifies different factors affecting municipal waste collection costs between these two production modes.
PUBLIC MONEY & MANAGEMENT
(2023)
Article
Public Administration
Emilio J. de la Higuera-Molina, Marc Esteve, Ana M. Plata-Diaz, Jose L. Zafra-Gomez
Summary: This article aims to determine whether there is opportunistic behavior in local government decisions related to contracting out, PPP and public externalization. The analysis of 2,274 Spanish municipalities suggests asymmetric opportunistic behavior, with less contracting out and PPP decisions in pre-election years, and more public externalization. Capital spending increase in post-election years leads to lower likelihood of contracting out and PPP.
INTERNATIONAL PUBLIC MANAGEMENT JOURNAL
(2022)
Article
Political Science
Germa Bel, Marc Esteve, Juan Carlos Garrido, Jose Luis Zafra-Gomez
Summary: This study examines the effects of different forms of corporatization on public service costs, finding that services provided by public corporations are not less costly than those provided by public agencies, and that public services offered by mixed corporations with government majorities tend to cost more.
PUBLIC ADMINISTRATION
(2022)
Article
Management
Hengyu Liu, Kai Zheng
Summary: Since August 2018, African swine fever (ASF) has caused over one million pig deaths in China and led to a surge in pork prices. To address this issue, the Chinese government has implemented two farm subsidies: the compulsory culling subsidy (CCS) and the large-scale breeding subsidy (LBS). Through a game-theoretic model, the study explores the optimal design of these subsidy programs and their impacts on different stakeholders.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Reza Azad Gholami, Leif Kristoffer Sandal, Jan Uboe
Summary: This paper investigates a decentralized supply channel where a manufacturer and a retailer compete in a multi-period discrete time setting, addressing uncertain demand through dynamic channel optimization. The paper proposes solution algorithms and theorems that highlight the benefits of postponement strategies for the follower and potential harm for the manufacturer in a decentralized channel.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Anne G. Balter, Ki Wai Chau, Nikolaus Schweizer
Summary: This study examines whether the threshold parameter in the Omega ratio represents risk aversion by analyzing the asymptotic expansions for risk premia. The results suggest that the threshold in the Omega ratio represents risk aversion when the variance of the additional risk decreases with the background risk and when the density of the background risk is log-concave. Comparisons with expected utility criteria indicate that the conditions for the Omega threshold to represent risk aversion are comparable to those for exponential utility functions.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Baozhuang Niu, Fengfeng Xie, Lei Chen
Summary: This paper examines the strategic sourcing decisions of a local brand (BOP) when purchasing remanufactured components from a local supplier (LSP). The study finds that the BOP tends to decrease its purchasing orders from the LSP when the probability of overseas supply disruption is high, while the LSP is willing to sell components to the BOP when the probability is in a moderate range.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Chiang Kao
Summary: This study develops a model to calculate the maximum SBM efficiency for general network production systems, and applies it to a garment manufacturing company. The results show that the sewing operation contributes more to the system efficiency than the cutting operation does.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Baozhuang Niu, Jiayun Liu, Jianhua Zhang, Kanglin Chen
Summary: This study examines a brand's decision on reselling through a platform by using game-theoretical analysis and big data validation based on transaction-level data from JD.com. The study finds that the platform's channel advantage and high logistics service level encourage brands to choose the reselling mode, and the impact of the platform's private label competition is non-monotonic.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Ali Fereydooni, Sasan Barak, Seyed Mehrzad Asaad Sajadi
Summary: This study develops an online portfolio selection strategy that considers Environmental, Social, and Governance factors in addition to return and risk. The results indicate the superiority of the approach that considers Environmental, Social, and Governance factors in terms of profit, volatility, and the highest deflated Sharpe ratio.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Sally Giuseppe Arcidiacono, Salvatore Corrente, Salvatore Greco
Summary: This paper introduces a method to handle multiple compatible value functions in multi-criteria decision making by building a probability distribution. Stochastic multicriteria acceptability analysis provides statistical information based on the decision maker's preferences. Extensive simulations and sensitivity analysis have been conducted to demonstrate the superiority of the proposed method.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Junlin Chen, Zewu Jiang, Xiaobo Zhao, Wanshan Zhu, Jinxing Xie
Summary: In this study, we investigate a supply chain system consisting of a retailer and a supplier. We examine the threshold problem in contract design and take into account the risk preference of the retailer and the fairness concern of the supplier. The experiment shows that the behavior of the retailer affects the threshold of the optimal contract design, while the behavior of the supplier only affects the optimal wholesale price. These findings suggest that the behavior of retailers and suppliers play a crucial role in the mechanism design of supply chains.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Shuxia Peng, Bo Li, Wei Zheng
Summary: This study examines the impact of consumers' valuation updating on optimal pricing decisions and market structure in a competitive software market. The results show that with consumers' valuation updating, the incumbent can maximize profits through market segmentation, dominance, or entry deterrence strategies, and is willing to share the market with the entrant, achieving a win-win situation.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Victor Gimenez, Diego Prior, Claudio Thieme, Emili Tortosa-Ausina
Summary: This study proposes a nonparametric activity analysis methodology to assess the effectiveness of pandemic management in 61 countries nine months into the COVID-19 pandemic. The results show that effectiveness is strongly influenced by socioeconomic and cultural factors and reveal three main groups of countries based on their management level. This highlights the importance of operations research methods in accurately assessing pandemic management.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Narges Sereshti, Yossiri Adulyasak, Raf Jans
Summary: This paper investigates the stochastic multi-level lot sizing problem with a service level and explores the value of adding flexibility in such context. By modeling the problem as a two-stage stochastic program with uncertain demand and considering different demand scenarios, the study shows that adding flexibility to the system can result in cost savings, even with a small degree of flexibility.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Jafar Chaab, Georges Zaccour
Summary: This paper examines the pricing of a new product in the presence of sophisticated consumer behaviors. The study finds that forward-looking consumer behavior can either strengthen or weaken the effectiveness of a penetration pricing strategy, while the superiority of committed pricing in terms of firm's profit heavily depends on consumer behaviors.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Amelia Bilbao-Terol, Celia Bilbao-Terol
Summary: This paper presents a methodology that combines the hedonic pricing method and the Choquet integral for modelling the hotel selection process. This hybrid technique takes into account both market valuation and the importance of criteria, and holds potential benefits.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Hui Li, Dongdong Wu
Summary: This study aims to investigate the impact of scale effects from restructuring on performance in tourism firms, and examine the influence of investor attention on restructuring performance. The findings reveal that restructuring activities can enhance scale effects, but the benefits decrease over time, and investor attention online also plays a role in determining restructuring performance.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
