62 results match your criteria Annals Of Operations Research[Journal]

Infection vulnerability stratification risk modelling of COVID-19 data: a deterministic SEIR epidemic model analysis.

Ann Oper Res 2021 Jun 4:1-27. Epub 2021 Jun 4.

Department of Operations and Innovation Management, Nottingham University Business School, Nottingham, UK.

Basic Susceptible-Exposed-Infectious-Removed (SEIR) models of COVID-19 dynamics tend to be excessively pessimistic due to high basic reproduction values, which result in overestimations of cases of infection and death. We propose an extended SEIR model and daily data of COVID-19 cases in the U.S. Read More

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A combined approach for modeling multi-echelon multi-period decentralized supply chain.

Ann Oper Res 2021 Jun 3:1-38. Epub 2021 Jun 3.

School of Engineering and Information Technology, University of New South Wales, Canberra, Australia.

In this paper, a multi-echelon, multi-period, decentralized supply chain (SC) with a single manufacturer, single distributor and single retailer is considered. For this setting, a two-phase planning approach combining centralized and decentralized decision-making processes is proposed, in which the first-phase planning is a coordinated centralized controlled, and the second-phase planning is viewed as independent decentralized decision-making for individual entities. This research focuses on the independence and equally powerful behavior of the individual entities with the aim of achieving the maximum profit for each stage. Read More

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A mathematical programming approach for equitable COVID-19 vaccine distribution in developing countries.

Ann Oper Res 2021 Jun 3:1-34. Epub 2021 Jun 3.

School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran.

Developing countries scramble to contain and mitigate the spread of coronavirus disease 2019 (COVID-19), and world leaders demand equitable distribution of vaccines to trigger economic recovery. Although numerous strategies, including education, quarantine, and immunization, have been used to control COVID-19, the best method to curb this disease is vaccination. Due to the high demand for COVID 19 vaccine, developing countries must carefully identify and prioritize vulnerable populations and rationalize the vaccine allocation process. Read More

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Drivers and trajectories of China's renewable energy consumption.

Ann Oper Res 2021 Jun 1:1-19. Epub 2021 Jun 1.

School of Statistics and Applied Mathematics, Anhui University of Finance and Economics, Bengbu, China.

Renewable energy is significant for addressing climate change and energy security. This study focused on the drivers of China's renewable energy consumption (REC) by an extended production-theoretical decomposition analysis and emphasized REC technical efficiency and technological change in 28 provinces during 1997-2017. We then projected China's REC to 2030 based on nine scenarios using a Monte Carlo simulation approach and specifically considering the impacts of the COVID-19 pandemic on the national economy. Read More

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A planetary boundaries perspective on the sustainability: resilience relationship in the Kenyan tea supply chain.

Ann Oper Res 2021 May 18:1-35. Epub 2021 May 18.

Kent Business School, University of Kent, Canterbury, UK.

The purpose of this paper is to examine whether agricultural supply chains (ASC) can be simultaneously sustainable and resilient to ecological disruptions, using the Planetary Boundaries theory. The nine different Planetary Boundaries i.e. Read More

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An integrated socially responsible-efficient approach toward health service network design.

Ann Oper Res 2021 May 17:1-54. Epub 2021 May 17.

School of Industrial Engineering, Iran University of Science and Technology, University Ave, Narmak, 16846 Tehran, Iran.

Despite the fact that medical responses are crucial for saving precious lives during any humanitarian crisis (e.g., the COVID-19 pandemic), healthcare infrastructure in many communities are partially covered or are not covered yet. Read More

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Cooperation and decision making in a two-sided market motivated by the externality of a third-party social media platform.

Ann Oper Res 2021 May 17:1-26. Epub 2021 May 17.

School of Economics and Management, Xiamen University of Technology, Xiamen, 361024 China.

In recent years, with the rapid development of Internet technology, the integration of platform economy and e-commerce has become a popular business model. Two-sided platforms have a specific impact on sales, customer experience and transaction efficiency of both sides. In the current severe situation caused by the coronavirus pandemic, both the traditional unilateral market platform and the emerging two-sided market platform are in urgent need of a change in operation mode to reduce the marketing cost. Read More

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Intra-day co-movements of crude oil futures: China and the international benchmarks.

Ann Oper Res 2021 May 15:1-27. Epub 2021 May 15.

Essex Business School, University of Essex, Colchester, UK.

Investigating the co-movements between crude oil futures helps to understand the integration of the global markets. This paper focuses on Shanghai crude oil futures (INE) and study its co-movements with the international benchmarks of WTI and Brent crude oil futures in intra-day day and night trading sessions. A complex network model framework is proposed to analyse the intra-day co-movement patterns labelled by a functional data clustering approach on intra-day return curves. Read More

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The impact of the SARS-CoV-2 pandemic on financial markets: a seismologic approach.

Ann Oper Res 2021 May 14:1-26. Epub 2021 May 14.

Department of Economics and Management, University of Pavia, Via San Felice, 5, 27100 Pavia, Italy.

This work investigates financial volatility cascades generated by SARS-CoV-2 related news using concepts developed in the field of seismology. We analyze the impact of socio-economic and political announcements, as well as of financial stimulus disclosures, on the reference stock markets of the United States, United Kingdom, Spain, France, Germany and Italy. We quantify market efficiency in processing SARS-CoV-2 related news by means of the observed Omori power-law exponents and we relate these empirical regularities to investors' behavior through the lens of a stylized Agent-Based financial market model. Read More

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The emergent role of digital technologies in the context of humanitarian supply chains: a systematic literature review.

Ann Oper Res 2021 May 10:1-42. Epub 2021 May 10.

Department of Management, Deusto Business School, University of Deusto, Bilbao, Spain.

The role of digital technologies (DTs) in humanitarian supply chains (HSC) has become an increasingly researched topic in the operations literature. While numerous publications have dealt with this convergence, most studies have focused on examining the implementation of individual DTs within the HSC context, leaving relevant literature, to date, dispersed and fragmented. This study, through a systematic literature review of 110 articles on HSC published between 2015 and 2020, provides a unified overview of the current state-of-the-art DTs adopted in HSC operations. Read More

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Impact of lean service, workplace environment, and social practices on the operational performance of India post service industry.

Ann Oper Res 2021 May 1:1-26. Epub 2021 May 1.

Great Lakes Institute of Management, Chennai, India.

This paper aims to study the determinants of the Lean Service System (LSS) on the Operational Performance (OP) of India's mail service in the National Sorting Hub (NSH), Mangaluru, Karnataka, the southern part of India. Measuring the OP in mail service is a big challenge in the postal service industry. Hence, we have conducted a survey, and 150 usable data has measured the impact of Lean Service Practices (LSP), Lean Workplace Environment Practices (LWEP), and Lean Social Practices (LSoP) on the OP. Read More

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Emerging stock market volatility and economic fundamentals: the importance of US uncertainty spillovers, financial and health crises.

Ann Oper Res 2021 Apr 21:1-40. Epub 2021 Apr 21.

Department of Economics and Finance, Brunel University London, Kingston Lane, Uxbridge, UB8 3PH UK.

This paper studies the US and global economic fundamentals that exacerbate emerging stock markets volatility and can be considered as systemic risk factors increasing financial stability vulnerabilities. We apply the bivariate HEAVY system of daily and intra-daily volatility equations enriched with powers, leverage, and macro-effects that improve its forecasting accuracy significantly. Our macro-augmented asymmetric power HEAVY model estimates the inflammatory effect of US uncertainty and infectious disease news impact on equities alongside global credit and commodity factors on emerging stock index realized volatility. Read More

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Exploring big data-driven innovation in the manufacturing sector: evidence from UK firms.

Ann Oper Res 2021 Apr 21:1-28. Epub 2021 Apr 21.

Brunel University, London, UK.

Although innovation from analytics is surging in the manufacturing sector, the understanding of the data-driven innovation (DDI) process remains a challenge. Drawing on a systematic literature review, thematic analysis and qualitative interview findings, this study presents a seven-step process to understand DDI in the context of the UK manufacturing sector. The findings discuss the significance of critical seven-step in DDI, ranging from conceptualisation to commercialisation of innovative data products. Read More

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Intellectual structure and trends in the humanitarian operations field.

Ann Oper Res 2021 Apr 20:1-59. Epub 2021 Apr 20.

Operations Management Department, Fundação Getulio Vargas - FGV, São Paulo, 01313-902 Brazil.

Humanitarian Operations (HO) have attracted the interest of professionals and academics, mainly due to their potential to reduce human suffering in disaster situations, leading to consolidation as a research field. With the evolution of the HO research field, synthesis of the knowledge and previous discoveries has become an important task for its advancement. In this study, a literature review based on bibliometric mapping techniques was carried out in order to identify the HO intellectual structure. Read More

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An optimal put option contract for a reverse supply chain: case of remanufacturing capacity uncertainty.

Ann Oper Res 2021 Apr 9:1-24. Epub 2021 Apr 9.

School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran.

Reverse supply chain (RSC) management can be implemented to ameliorate environmental and economic goals simultaneously. In 2020, the devastating influences generated by the COVID-19 global pandemic had established high uncertainty in the manufacturers' capacity, which can hinder the fulfillment of such goals. To address such a problem, in this research, we analyze a two-echelon RSC, including a re-manufacturer who, despite facing the remanufacturing capacity uncertainty, remanufactures eligible obsolete products, then re-enters the marketplace, and a collector who accumulates eligible obsolete products from consumers. Read More

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Exiting the COVID-19 pandemic: after-shock risks and avoidance of disruption tails in supply chains.

Dmitry Ivanov

Ann Oper Res 2021 Apr 5:1-18. Epub 2021 Apr 5.

Berlin School of Economics and Law, Department of Business and Economics, Professor of Supply Chain and Operations Management, 10825 Berlin, Germany.

Entering the COVID-19 pandemic wreaked havoc on supply chains. Reacting to the pandemic and adaptation in the "new normal" have been challenging tasks. Exiting the pandemic can lead to some after-shock effects such as "disruption tails. Read More

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Handling of uncertainty in medical data using machine learning and probability theory techniques: a review of 30 years (1991-2020).

Ann Oper Res 2021 Mar 21:1-42. Epub 2021 Mar 21.

Department of Electronics and Computer Engineering, Ngee Ann Polytechnic, Singapore, Singapore.

Understanding the data and reaching accurate conclusions are of paramount importance in the present era of big data. Machine learning and probability theory methods have been widely used for this purpose in various fields. One critically important yet less explored aspect is capturing and analyzing uncertainties in the data and model. Read More

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A differential evolution-based regression framework for forecasting Bitcoin price.

Ann Oper Res 2021 Mar 1:1-26. Epub 2021 Mar 1.

Finance and Accounting Area, Indian Institute of Management Bangalore, Bengaluru, Karnataka 560076 India.

This research proposes a differential evolution-based regression framework for forecasting one day ahead price of Bitcoin. The maximal overlap discrete wavelet transformation first decomposes the original series into granular linear and nonlinear components. We then fit polynomial regression with interaction (PRI) and support vector regression (SVR) on linear and nonlinear components and obtain component-wise projections. Read More

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Vertical value-added cost information sharing in a supply chain.

Ann Oper Res 2021 Mar 8:1-34. Epub 2021 Mar 8.

College of Business, The University of Nevada, Reno, NV 89557 USA.

We study a two-echelon supply chain with two homogeneous manufacturers and one common retailer who has full knowledge about his own value-added service cost structure that is unknown to the manufacturers. The retailer may choose to disclose his cost information to the manufacturers. Using a three-stage game-theoretic model, we derive optimal pricing strategies for each participant, and optimal information sharing strategies, and the optimal level of the value-added services for the retailer. Read More

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Supply chain viability: conceptualization, measurement, and nomological validation.

Ann Oper Res 2021 Mar 8:1-30. Epub 2021 Mar 8.

Operations Management Group, N.P. Loomba Dept. of Management, Zicklin School of Business, Baruch College, CUNY, One Bernard Baruch Way, New York, NY 10010 USA.

Supply chain viability (SCV) is an emerging concept of growing importance in operations management. This paper aims to conceptualize, develop, and validate a measurement scale for SCV. SCV is first defined and operationalized as a construct, followed by content validation and item measure development. Read More

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Fighting against COVID-19: what operations research can help and the sense-and-respond framework.

Tsan-Ming Choi

Ann Oper Res 2021 Mar 5:1-17. Epub 2021 Mar 5.

Business Division, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.

COVID-19 is affecting all walks of life. To deal with it, we need to make use of scientifically sound tools and models. Operations research (OR), as a well-established field which focuses on deploying analytical tools to solving decision making problems, comes to the rescue. Read More

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Robust pricing for airlines with partial information.

Ann Oper Res 2021 Feb 26:1-39. Epub 2021 Feb 26.

Miami Business School, University of Miami, Coral Gables, FL 33146 USA.

In the spot market for air cargo, airlines typically adopt dynamic pricing to tackle demand uncertainty, for which it is difficult to accurately estimate the distribution. This study addresses the problem where a dominant airline dynamically sets prices to sell its capacities within a two-phase sales period with only partial information. That partial information may show as the moments (upper and lower bounds and mean) and the median of the demand distribution. Read More

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February 2021

The human side of humanitarian supply chains: a research agenda and systematization framework.

Ann Oper Res 2021 Feb 13:1-26. Epub 2021 Feb 13.

Lincoln International Business School, University of Lincoln, Brayford Way, Brayford Pool, Lincoln, LN6 7TS UK.

Humanitarian operations are increasingly receiving attention due to the numerous recent disasters and crises caused by both natural and man-made events, from mass human exodus to pandemics such as COVID-19. The successful management of humanitarian supply chains requires the effective use of human resource practices, which in turn requires strong leadership in the so-called 'soft side' of management. This study aims to investigate the current status of research on the human aspects of humanitarian supply chains. Read More

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February 2021

Socio-economic impact on COVID-19 cases and deaths and its evolution in New Jersey.

Ann Oper Res 2021 Feb 10:1-14. Epub 2021 Feb 10.

Rutgers, The State University of New Jersey, New Brunswick, USA.

Socio-economic factors could impact how epidemics spread. In this study, we investigated the possible effect of several local socio-economic factors on the case count and time course of confirmed Covid-19 cases and Covid-19-related deaths across the twenty one counties of New Jersey. Socio-economic and geographic factors considered included population, percentage of elders in the population, percentage of low-income households, access to food and health facilities and distance to New York. Read More

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February 2021

Designing a sustainable closed-loop pharmaceutical supply chain in a competitive market considering demand uncertainty, manufacturer's brand and waste management.

Ann Oper Res 2021 Feb 8:1-32. Epub 2021 Feb 8.

School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran.

Pharmaceutical supply chain (PSC) is one of the most important healthcare supply chains and the recent pandemic (COVID-19) has completely proved it. Also, the environmental and social impacts of PSCs are undeniable due to the daily entrance of a large amount of pharmaceutical waste into the environment. However, studies on closed-loop PSCs (CLPSC) are rarely considered real-world requirements such as competition among diverse brands of manufacturers, the dependency of customers' demand on products' price and quality, and diverse reverse flows of end-of-life medicines. Read More

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February 2021

Toward the understanding of national culture in the success of non-pharmaceutical technological interventions in mitigating COVID-19 pandemic.

Ann Oper Res 2021 Feb 3:1-18. Epub 2021 Feb 3.

Department of Computer Science, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.

This study conceptually explores the relationship between a nation's culture and the success of utilizing various digital technologies to mitigate the spread of a pandemic, such as novel coronavirus (COVID-19). In the absence of a cure or vaccine of COVID-19, the national governments and public health authorities have been aggressively utilizing digital technologies to mitigate the pandemic spread. Given the urgency caused by COVID-19, this study highlights the importance of considering a country's national culture in evaluating the efficacy of a given digital technology, despite how promising or groundbreaking it may sound, in combating the spread of an infectious disease. Read More

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February 2021

Artificial intelligence-driven innovation for enhancing supply chain resilience and performance under the effect of supply chain dynamism: an empirical investigation.

Ann Oper Res 2021 Feb 3:1-26. Epub 2021 Feb 3.

Department of Marketing and Management, University of Southern Denmark, Odense, Denmark.

Supply chain resilience (SCRes) and performance have become increasingly important in the wake of the recent supply chain disruptions caused by subsequent pandemics and crisis. Besides, the context of digitalization, integration, and globalization of the supply chain has raised an increasing awareness of advanced information processing techniques such as Artificial Intelligence (AI) in building SCRes and improving supply chain performance (SCP). The present study investigates the direct and indirect effects of AI, SCRes, and SCP under a context of dynamism and uncertainty of the supply chain. Read More

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February 2021

Social media effectiveness as a humanitarian response to mitigate influenza epidemic and COVID-19 pandemic.

Ann Oper Res 2021 Jan 29:1-29. Epub 2021 Jan 29.

Department of Operations and Supply Chain Management, Opus College of Business, University of St. Thomas, Mail # TMH 445, Minneapolis, MN 55403 USA.

Influenza and COVID-19 are infectious diseases with significant burdens. Information and awareness on preventative techniques can be spread through the use of social media, which has become an increasingly utilized tool in recent years. This study developed a dynamic transmission model to investigate the impact of social media, particularly tweets via the social networking platform, Twitter on the number of influenza and COVID-19 cases of infection and deaths. Read More

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January 2021

Herding and feedback trading in cryptocurrency markets.

Ann Oper Res 2021 Jan 13:1-18. Epub 2021 Jan 13.

Texas A&M University - Corpus Christi, Corpus Christi, TX 78412 USA.

This paper examines the extent to which herding and feedback trading behaviors drive price dynamics across nine major cryptocurrencies. Using sample price data from bitcoin, ethereum, XRP, bitcoin cash, EOS, litecoin, stellar, cardano and IOTA, respectively, we document heterogeneity in the types of feedback trading strategies investors utilize across markets. Whereas some cryptocurrency markets show evidence of herding, or, 'trend chasing', behaviors, in other markets we show evidence of contrarian-type behaviors. Read More

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January 2021

Supply chain disruptions and resilience: a major review and future research agenda.

Ann Oper Res 2021 Jan 8:1-38. Epub 2021 Jan 8.

Opus College of Business, University of St. Thomas Minneapolis Campus, 1000 LaSalle Avenue, Schulze Hall 435, Minneapolis, MN 55403 USA.

Our study examines the literature that has been published in important journals on supply chain disruptions, a topic that has emerged the last 20 years, with an emphasis in the latest developments in the field. Based on a review process important studies have been identified and analyzed. The content analysis of these studies synthesized existing information about the types of disruptions, their impact on supply chains, resilience methods in supply chain design and recovery strategies proposed by the studies supported by cost-benefit analysis. Read More

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January 2021