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Article
Publication date: 13 July 2023

S.M. Taghavi, V. Ghezavati, H. Mohammadi Bidhandi and S.M.J. Mirzapour Al-e-Hashem

This paper proposes a two-level supply chain including suppliers and manufacturers. The purpose of this paper is to design a resilient fuzzy risk-averse supply portfolio selection…

Abstract

Purpose

This paper proposes a two-level supply chain including suppliers and manufacturers. The purpose of this paper is to design a resilient fuzzy risk-averse supply portfolio selection approach with lead-time sensitive manufacturers under partial and complete supply facility disruption in addition to the operational risk of imprecise demand to minimize the mean-risk costs. This problem is analyzed for a risk-averse decision maker, and the authors use the conditional value-at-risk (CVaR) as a risk measure, which has particular applications in financial engineering.

Design/methodology/approach

The methodology of the current research includes two phases of conceptual model and mathematical model. In the conceptual model phase, a new supply portfolio selection problem is presented under disruption and operational risks for lead-time sensitive manufacturers and considers resilience strategies for risk-averse decision makers. In the mathematical model phase, the stages of risk-averse two-stage fuzzy-stochastic programming model are formulated according to the above conceptual model, which minimizes the mean-CVaR costs.

Findings

In this paper, several computational experiments were conducted with sensitivity analysis by GAMS (General algebraic modeling system) software to determine the efficiency and significance of the developed model. Results show that the sensitivity of manufacturers to the lead time as well as the occurrence of disruption and operational risks, significantly affect the structure of the supply portfolio selection; hence, manufacturers should be taken into account in the design of this problem.

Originality/value

The study proposes a new two-stage fuzzy-stochastic scenario-based mathematical programming model for the resilient supply portfolio selection for risk-averse decision-makers under disruption and operational risks. This model assumes that the manufacturers are sensitive to lead time, so the demand of manufacturers depends on the suppliers who provide them with services. To manage risks, this model also considers proactive (supplier fortification, pre-positioned emergency inventory) and reactive (revision of allocation decisions) resilience strategies.

Article
Publication date: 1 April 2002

Sayed Hossain, Nik Hashim Nik Mustapha and Lee Tak Chen

Farming in Bangladesh is confronted with various types of uncertainties, which contribute to farmers’ income volatility over the years. As a result, cereal, mainly rice, which is…

Abstract

Farming in Bangladesh is confronted with various types of uncertainties, which contribute to farmers’ income volatility over the years. As a result, cereal, mainly rice, which is a less riskier crop remained dominantly planted in the current farm plan. But the return generated from rice cultivation has not been able to improve the livelihood of the poor, as rice profitability is low compared to some profitable but risky crops like jute and vegetables. To investigate the behavioral pattern of the farmers towards risk, Dhaka division, largely known as central region of Bangladesh, is selected. The prevailing farm plan of Dhaka division is compared with the efficient one at the current level of expected return in order to check whether the current farm plan is risky or otherwise. Quadratic and MOTAD as well as linear programming techniques have been employed for the analysis. The result of the study reveals that the prevailing farm plan in Dhaka division is risky compared to the efficient plan. Since the current return level is low, the study has recommended that more jute and vegetables should be planted to achieve higher remuneration.

Details

International Journal of Social Economics, vol. 29 no. 4
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 26 September 2023

Seyed Mojtaba Taghavi, Vahidreza Ghezavati, Hadi Mohammadi Bidhandi and Seyed Mohammad Javad Mirzapour Al-e-Hashem

This paper aims to minimize the mean-risk cost of sustainable and resilient supplier selection, order allocation and production scheduling (SS,OA&PS) problem under uncertainty of…

Abstract

Purpose

This paper aims to minimize the mean-risk cost of sustainable and resilient supplier selection, order allocation and production scheduling (SS,OA&PS) problem under uncertainty of disruptions. The authors use conditional value at risk (CVaR) as a risk measure in optimizing the combined objective function of the total expected value and CVaR cost. A sustainable supply chain can create significant competitive advantages for companies through social justice, human rights and environmental progress. To control disruptions, the authors applied (proactive and reactive) resilient strategies. In this study, the authors combine resilience and social responsibility issues that lead to synergy in supply chain activities.

Design/methodology/approach

The present paper proposes a risk-averse two-stage mixed-integer stochastic programming model for sustainable and resilient SS,OA&PS problem under supply disruptions. In this decision-making process, determining the primary supplier portfolio according to the minimum sustainable-resilient score establishes the first-stage decisions. The recourse or second-stage decisions are: determining the amount of order allocation and scheduling of parts by each supplier, determining the reactive risk management strategies, determining the amount of order allocation and scheduling by each of reaction strategies and determining the number of products and scheduling of products on the planning time horizon. Uncertain parameters of this study are the start time of disruption, remaining capacity rate of suppliers and lead times associated with each reactive strategy.

Findings

In this paper, several numerical examples along with different sensitivity analyses (on risk parameters, minimum sustainable-resilience score of suppliers and shortage costs) were presented to evaluate the applicability of the proposed model. The results showed that the two-stage risk-averse stochastic mixed-integer programming model for designing the SS,OA&PS problem by considering economic and social aspects and resilience strategies is an effective and flexible tool and leads to optimal decisions with the least cost. In addition, the managerial insights obtained from this study are extracted and stated in Section 4.6.

Originality/value

This work proposes a risk-averse stochastic programming approach for a new multi-product sustainable and resilient SS,OA&PS problem. The planning horizon includes three periods before the disruption, during the disruption period and the recovery period. Other contributions of this work are: selecting the main supply portfolio based on the minimum score of sustainable-resilient criteria of suppliers, allocating and scheduling suppliers orders before and after disruptions, considering the balance constraint in receiving parts and using proactive and reactive risk management strategies simultaneously. Also, the scheduling of reactive strategies in different investment modes is applied to this problem.

Book part
Publication date: 26 January 2022

Jerry V. Graves

Agricultural and fishery disasters are rather obscure emergency management research topics. However, the Food and Agriculture Sector is one of only 16 critical infrastructure…

Abstract

Agricultural and fishery disasters are rather obscure emergency management research topics. However, the Food and Agriculture Sector is one of only 16 critical infrastructure sectors included in the Robert T. Stafford Disaster Relief and Emergency Assistance Act of 1988, and the sector is a vital component of the United States economy. As climate change continues to increase the frequency and severity of agricultural and fishery disasters, the Food and Agricultural Sector must adapt to and cope with unprecedented levels of risk. This chapter provides an overview of federal agricultural and fishery disaster policy and explores whether such policies are consistent with Jerroleman’s (2019)principles of just recovery.

Details

Justice, Equity, and Emergency Management
Type: Book
ISBN: 978-1-83982-332-9

Keywords

Article
Publication date: 1 November 2005

Calum G. Turvey, Cesar L. Escalante and William Nganje

This paper reviews various optimization approaches used to address a variety of issues related to risk in agricultural finance and farm management. The central focus is in the…

1269

Abstract

This paper reviews various optimization approaches used to address a variety of issues related to risk in agricultural finance and farm management. The central focus is in the Markowitz mean‐variance model, which represents the classical approach to balancing risk and returns in an optimization framework. We also review other models that have been used historically to solve linearizations of the mean‐variance problem including MOTAD and target MOTAD. Specialized optimization models such as Target semivariance and direct expected utility maximization are also discussed.

Details

Agricultural Finance Review, vol. 65 no. 2
Type: Research Article
ISSN: 0002-1466

Keywords

Article
Publication date: 1 May 2006

Gwyndaf Williams

This article aims to consider the benefits of collaboration in programming the delivery of complex regeneration strategies, focusing on the renewal of Manchester city centre…

2514

Abstract

Purpose

This article aims to consider the benefits of collaboration in programming the delivery of complex regeneration strategies, focusing on the renewal of Manchester city centre following its terrorist bombing. Set within the wider discourse on the nature of partnerships, it situates the city centre renewal process within Manchester's locally‐grounded development agenda, focusing in particular on programme management achievements.

Design/methodology/approach

The article uses a qualitative approach to look at the institutional basis for collaborative action, and the management structures put in place to deliver the renewal programme over a five‐year period of concentrated activity.

Findings

In the renewal of Manchester city centre a common purpose was found within the partnership approach. Such an approach appeared to be driven by inter‐urban competition for public and private investment.

Research limitations/implications

Implications for organizational capacity and for master plan delivery were noted, and with the approach taken to performance management and the accommodation of risk, and the delivery of a forward strategy to ensure the completion of the rebuilding programme.

Practical implications

The findings have had practical implications with a number of other cities pursuing like‐minded strategies based on the Manchester experience.

Originality/value

The article adds further knowledge to our understanding of renewal and regeneration in major cities.

Details

International Journal of Sociology and Social Policy, vol. 26 no. 5/6
Type: Research Article
ISSN: 0144-333X

Keywords

Abstract

Details

Attaining the 2030 Sustainable Development Goal of Sustainable Cities and Communities
Type: Book
ISBN: 978-1-80455-839-3

Abstract

Details

Sexual Violence on Campus
Type: Book
ISBN: 978-1-78743-229-1

Article
Publication date: 1 March 2010

Christine Wamsler

This paper analyses how disaster risk management paradigms have gradually developed since the 1960s, shaped by practical experience of-and the debate about-the rising number of…

Abstract

This paper analyses how disaster risk management paradigms have gradually developed since the 1960s, shaped by practical experience of-and the debate about-the rising number of disasters, growing urbanization, and changing climatic conditions. In this context, climate change is shown as driving an urban pro-poor adaptation agenda, which could allow current shortcomings in urban risk reduction to be overcome. However, as past lessons in disaster risk management are rarely considered, any potential for improvement remains untapped. Possible ways of rectifying this situation are discussed, and a comprehensive framework for the reduction of both disaster and climate risks is presented.

Details

Open House International, vol. 35 no. 1
Type: Research Article
ISSN: 0168-2601

Keywords

Book part
Publication date: 1 January 2006

Anna Marie Guerra

For centuries, the Hispanic population has been proving itself as an emerging majority in the United States. The United States census shows that the Hispanic population more than…

Abstract

For centuries, the Hispanic population has been proving itself as an emerging majority in the United States. The United States census shows that the Hispanic population more than doubled from 1970 to 1980 and from 1980 to 1990. However, despite these data, libraries have not adapted their library services to meet the needs of this population, despite their knowledge that Hispanics do not feel welcome in libraries. Authors from 1970 to 2001 have highlighted the long-standing problem of Hispanic under-utilization of libraries and have provided recommendations for the library community regarding adapting their services in a culturally sensitive manner. Despite these publications, there is still literature in 2001 reporting that Hispanics do not feel welcome in libraries. The purpose of this study is to examine the current status of three facets of librarianship: (1) outreach efforts to Hispanics; (2) specialized training for Hispanics in bibliographic and information literacy; and (3) current attitudes of Hispanics toward public libraries.

Details

Advances in Library Administration and Organization
Type: Book
ISBN: 978-0-7623-1410-2

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