A counterexample to FORM and SORM

2020 ◽  
Vol 37 (6) ◽  
pp. 2127-2135
Author(s):  
Claudio Roberto Ávila da Silva Júnior ◽  
Pedro Danizete Damazio ◽  
Luiz Carlos Matioli ◽  
João Lucas Cavichiolo
Keyword(s):  
Order Approximation ◽  
Research Community ◽  
Content Type ◽  
Engineering Research ◽  
The Past ◽  
Engineering Problems ◽  
Uniqueness Of The Solution ◽  
The Moment ◽  
Gaussian Space ◽  
Practical Implications

Purpose This paper aims to presents a counterexample that points to an inconsistency generated by the first- and second-order approximation methods, FORM and SORM, respectively, procedures for elliptical problems. Design/methodology/approach The classical results of theory measure and functional analysis were used. Findings The FORM and SORM are known to find solutions in a Gaussian space. This procedure does not satisfy the conditions of the Lax–Milgram theorem and does not assure the existence and uniqueness of the solution. Research limitations/implications This paper alerts the engineering research community that uses these methods, initiating discussion and improvement of FORM and SORM procedures. Practical implications This paper puts in check the feasibility of using FORM and SORM in engineering problems. Originality/value From the moment they were introduced to the engineering and scientific communities, the FORM and SORM were taken as the bases for solving various problems found in the literature and indifferent documents scattered throughout the world over the past 50 years, for FORM, and 40 years, for SORM. Even though it was a very serious fault, at least for elliptical problems, pointed out in this work, it went unnoticed all those years by the research community. Therefore, the contribution of this paper is to present the engineering community that uses FORM and SORM in elliptical problems an unnoticed failure since the introduction of these methods.

Causality in qualitative market and social research

2019 ◽  
Vol 22 (3) ◽  
pp. 405-413
Author(s):  
Clive Roland Boddy
Keyword(s):  
Qualitative Research ◽  
Design Methodology ◽  
Social Research ◽  
Pragmatic Approach ◽  
Social Phenomena ◽  
Content Type ◽  
The Past ◽  
The Moment ◽  
Practical Implications

Purpose Academic qualitative researchers have been criticized for rejecting the idea that their research can establish causality while market and social researchers, with their realist and pragmatic approach to research, take for granted that it can. This paper aims to explore the ability of qualitative research to determine cause and effect in terms of market and social phenomena. Design/methodology/approach The literature on causality in qualitative research is reviewed and discussed. The discussion is further informed by the author’s own experience of undertaking commercial and academic market and social qualitative research over the past 33 years. Findings In qualitative market and social research, the determination of causality is often needed but rarely discussed. This paper explores this occurrence and brings to the fore, via discussion and the use of example, the ways in which causality can be determined by qualitative research. Practical implications A determination of what events bring about predictable changes in social and market environments can be established via qualitative research particularly at a probabilistic level of causality. This implies that policymakers should give a greater emphasis to qualitative findings than then sometimes do at the moment. Originality/value Causality in market and social research is rarely discussed by practitioners but is nevertheless a premise of much of the qualitative research that is undertaken. This paper is therefore distinctive in that it examines whether this premise is justifiable.

Investigating interdependencies of sustainable supplier selection criteria: an appraisal using ISM

2020 ◽  
Vol 13 (2) ◽  
pp. 195-210 ◽  
Author(s):  
Avanish Singh Chauhan ◽  
Gaurav Kumar Badhotiya ◽  
Gunjan Soni ◽  
Prem Kumari
Keyword(s):  
Supplier Selection ◽  
Selection Criteria ◽  
Local Community ◽  
Pollution Prevention ◽  
Content Type ◽  
The Past ◽  
Micmac Analysis ◽  
Sustainable Supplier Selection ◽  
Social Environmental ◽  
Practical Implications

Purpose Because of the increased global competition and the need for environment consciousness, organisations have started focusing on incorporating sustainability dimensions into suppler selection criteria. In the past decade, sustainable supplier selection has received much attention from researchers as well as industry practitioners. The purpose of this paper is to identify various sustainable supplier selection criteria (SSSC) and underlying interdependencies among prominent selection criteria to develop a framework for sustainability dimensions. Design/methodology/approach The sustainable criteria for supplier selection were established through comprehensive literature review. An interpretive structural modelling (ISM) approach is used to investigate the interrelationships among these criteria. Findings A total of 21 SSSC under 3 dimensions (social, environmental and economic) are established. Ten criteria related to quality, capability, flexibility, waste management, pollution prevention, local community, employment practice, labour, etc. are exhibiting strong driving as well as dependence power, as demonstrated through ISM and matriced’ impacts croises-multiplication applique’ and classement (MICMAC) analysis. The findings show that delivery/service, eco design and rights of stakeholders are the “key” criteria having a high-driving and low-dependence power. These criteria require high attention from managers, while other criteria having low-driving and high-dependence power require secondary actions. Research limitations/implications The inter-relations for the development of ISM model and MICMAC analysis were obtained through the opinion of industry experts and academicians, which may tend to be subjectively biased. Further exploration is proposed to statistically validate the developed interdependency model. Practical implications This paper might act as a reference for the supplier development managers of organisations by providing an appraisal of various SSSC based on their interdependencies. Originality/value This study contributes to the knowledge base by proposing a framework of the interrelationships of the SSSC and also provides an additional perspective for managing these criteria based on ISM.

FINRA’s disciplinary actions in 2017: increased restitution ordered with minimal changes in number of cases

2018 ◽  
Vol 19 (2) ◽  
pp. 19-23
Author(s):  
Brian Rubin ◽  
Adam Pollet
Keyword(s):  
Money Laundering ◽  
Design Methodology ◽  
Disciplinary Actions ◽  
Financial Industry ◽  
Electronic Communications ◽  
Content Type ◽  
The Past ◽  
Expert Analysis ◽  
Research Analysts ◽  
Practical Implications

Purpose The purpose of this paper is to analyze the Financial Industry Regulatory Authority’s (FINRA) 2017 disciplinary actions, the issues that resulted in the most significant fines and restitution and the emerging enforcement trends from 2017 and beyond. Design/methodology/approach The approach of this paper discusses the disciplinary actions in 2017 and prior years, details the top 2017 enforcement issues measured by total fines assessed, including anti-money laundering, trade reporting, electronic communications, books and records, research analysts and research reports, and explains current enforcement trends, including restitution, suitability cases and technological issues. Findings In 2017, restitution more than doubled from the prior year, resulting in the fourth highest total sanctions (fines combined with restitution and disgorgement) assessed by FINRA over the past 10 years. Practical implications Firms and their representatives should heed the trends in both the substantial restitution FINRA is ordering and the related enforcement issues in the cases FINRA has brought. Originality/value This paper provides expert analysis and guidance from experienced securities enforcement lawyers.

The public-private partnership valuation paradox

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Stephen Gray ◽  
Jason Hall ◽  
Grant Pollard ◽  
Damien Cannavan
Keyword(s):  
Mathematical Proof ◽  
Systematic Risk ◽  
Cash Flows ◽  
Current Theory ◽  
Apparent Paradox ◽  
Content Type ◽  
The Public ◽  
The Past ◽  
Alternative Approaches ◽  
Practical Implications

Purpose In the context of public-private partnerships (PPPs), it has been argued that the standard valuation framework produces a paradox whereby government appears to be made better off by taking on more systematic risk. This has led to a range of approaches being applied in practice, none of which are consistent with the standard valuation approach. The purpose of this paper is to demonstrate that these approaches are flawed and unnecessary. Design/methodology/approach The authors step through the proposed alternative valuation approaches and demonstrate their inconsistencies and illogical outcomes, using theory, logic and mathematical proof. Findings In this paper, the authors demonstrate that the proposed (alternative) approaches suffer from internal inconsistencies and produce illogical outcomes in some cases. The authors also show that there is no problem with the current accepted theory and that the apparent paradox is not the result of a deficiency in the current theory but is rather caused by its misapplication in practice. In particular, the authors show that the systematic risk of cash flows is frequently mis-estimated, and the correction of this error solves the apparent paradox. Practical implications Over the past 20 years, PPP activity around the globe amounts to many billions of dollars. Decisions on major infrastructure funding are of enormous social and economic importance. Originality/value To the best of the authors’ knowledge, this study is the first to demonstrate the flaws and internal inconsistencies with proposed valuation framework alternatives for the purposes of evaluating PPPs.

Recent civil and criminal enforcement action involving high frequency trading

2015 ◽  
Vol 16 (1) ◽  
pp. 5-12 ◽  
Author(s):  
Matthew Rossi ◽  
Greg Deis ◽  
Jerome Roche ◽  
Kathleen Przywara
Keyword(s):  
High Frequency ◽  
Design Methodology ◽  
High Frequency Trading ◽  
Content Type ◽  
Enforcement Action ◽  
The Past ◽  
Trading Patterns ◽  
Federal Prosecutor ◽  
Enforcement Activity ◽  
Practical Implications

Purpose – To alert high frequency trading firms to the increased regulation and prosecution of manipulative trading practices during 2014 and early 2015. Design/methodology/approach – Reviews four significant proceedings against high frequency trading firms (and/or individuals employed by such firms) and other developments from the relevant government agencies as a possible preview of the enforcement and prosecution of high frequency trading practices in 2015. Provides advice to high frequency trading firms on how to decrease the risk of regulatory or criminal actions against them in this changing environment. Findings – Although the focus on high frequency trading has only recently begun to intensify, firms should be aware of the increased enforcement activity of the past year. These actions, both regulatory and criminal, have already resulted in large penalties and have helped initiate a strengthening of rules and regulations regarding manipulative trading practices, of which firms need to be aware and stay current. Practical implications – High frequency trading firms should be aware of the recent regulatory and criminal actions in order to better evaluate their own practices and controls, to ensure that their trading patterns do not resemble manipulative practices, and to avoid similar actions. Originality/value – Practical guidance from experienced litigators and securities regulatory lawyers, including a former SEC Assistant Chief Litigation Counsel and a former federal prosecutor, that consolidates and describes several recent actions and developments in one piece.

State of the Canadian hospitality and tourism industry

2017 ◽  
Vol 9 (4) ◽  
pp. 381-390
Author(s):  
Chandana (Chandi) Jayawardena ◽  
Altaf Sovani ◽  
Alanna MacDonald
Keyword(s):  
Tourism Industry ◽  
Theme Issue ◽  
Content Type ◽  
Tourism Marketing ◽  
The Past ◽  
Labour Shortage ◽  
Hospitality And Tourism ◽  
Hospitality And Tourism Industry ◽  
Marketing Budgets ◽  
Practical Implications

Purpose This paper aims to provide a backdrop to the Worldwide Hospitality Themes (WHATT) theme issue (volume 9, issue 4) on aspects of the hospitality and tourism industry of Canada. Design/methodology/approach Canadian hospitality and tourism educators and their counterparts in the industry have collaborated periodically to discuss the challenges they face and to find practical solutions. Outcomes of ten key initiatives in Canada during the past 15 years that brought leaders of the hospitality and tourism industry and academia together to create 50 academic papers are summarized. Findings This paper provides key information on Canada, its people, its economic conditions and the challenges of the five sectors of the tourism industry in Canada. By introducing the main challenges faced by each sector, this paper provides a foundation for the other articles that follow in this WHATT theme issue. Practical implications Canadian tourism is losing ground, tourism marketing budgets are significantly reducing and there is a labour shortage crisis which are identified as key challenges requiring urgent attention. In conclusion, the authors suggest practical solutions. Originality/value Readers who are interested in the Canadian hospitality and tourism industry will find this paper to be of interest.

The changed paradigm of business progress: a moral step forward for humanity

2018 ◽  
Vol 26 (3) ◽  
pp. 181-193
Author(s):  
Joan Marques
Keyword(s):  
Design Methodology ◽  
Management Practices ◽  
Leadership Skills ◽  
First Century ◽  
Competitive Environment ◽  
Business Leadership ◽  
Content Type ◽  
The Past ◽  
Past Experiences ◽  
Practical Implications

Purpose Through an overview of the perceptional evolution of progress over the past two centuries, this paper aims to review a changed, yet constructive paradigm that has emerged in business leadership. Design/methodology/approach The paper is a general review-based deliberation presenting standards of the twentieth century, the need for a shift in paradigms and the shift as it unfolds in the twenty-first century. Findings Focusing on optimal stakeholder inclusion, yet not disregarding the concept of progress in a competitive environment, this paper presents a set of interrelated leadership skills and characteristics, including a discussion about their applicability and ways to develop them. Research limitations/implications While globally applicable, the views in this paper are primarily based on the American performance environment. Practical implications Management practices would not have evolved to today’s level if we did not have the past experiences to learn from. The deliberations and insights shared in this article should be seen as a way of evaluating the path that led us to our current, multi-tiered leadership paradigm. Social implications The model presented in this article should be seen as a useful, yet incomplete set of skills and characteristics to be considered by today’s and future leaders to ensure greater stakeholder inclusion. Originality/value Within the framework of focusing on the management horizon, this paper places the driving motives of two centuries that influenced our current society alongside each other and contemplates on the necessary shifts needed to move forward.

Reimagining leadership – and its relationship with management – for the public sector

2016 ◽  
Vol 12 (2) ◽  
pp. 94-111
Author(s):  
Don Dunoon
Keyword(s):  
Public Sector ◽  
Design Methodology ◽  
Distinct Form ◽  
Dominant Form ◽  
Content Type ◽  
The Public ◽  
The Moment ◽  
Practical Implications

Purpose The purpose of this paper is to review and critique three conventional assumptions about leadership and put forward an alternative framing, with leadership presented as a distinct form of intervention in particular moments to management. The paper also presents a structure for supporting leadership action by individuals and groups as an alternate to management action, which is seen as the dominant form. Design/methodology/approach Reflects an elaboration and distillation of concepts developed by the author since an earlier paper on essentially the same topic, drawing on his 20-plus years’ experience as a leadership developer. Findings Although not an empirical account, the paper seeks to demonstrate how, when conventional but infrequently challenged assumptions about leadership are “peeled back”, a new way of understanding leadership, especially in connection with management, is revealed. Research limitations/implications Suggestions are offered as to how the concepts and tools presented here could be evaluated, including in comparison with established leadership frameworks. Practical implications Outlines three practices for supporting leadership action in public sector organisations. These practices are working from observation, attributing reasonableness (allowing that others are reasonable) and speaking with authenticity. Collectively, these are known as the OBREAU Tripod (with “OBREAU” comprised of the first two letters in each of the pivotal words, observation, reasonableness and authenticity). Originality/value Conceiving of leadership as a different form of in-the-moment action to management in a public sector context is a distinctive contribution to the literature.

Is auditing the new evaluation? Can it be? Should it be?

2018 ◽  
Vol 31 (6) ◽  
pp. 726-739 ◽  
Author(s):  
Jon Pierre ◽  
B. Guy Peters ◽  
Jenny de Fine Licht
Keyword(s):  
Comparative Research ◽  
Qualitative Method ◽  
Time Perspective ◽  
Extensive Literature ◽  
Public Programs ◽  
Content Type ◽  
The Public ◽  
The Past ◽  
Practical Implications

Purpose The purpose of this paper is to study the changing relationship between auditing and evaluation. Over the past several years, supreme auditing institutions (SAIs) in a number of advanced democracies have evolved from conventional auditing institutions to becoming increasingly concerned with assisting policy change and administrative reform in the public sector; tasks that are traditionally associated with evaluation. The paper discusses the potential consequences of this development for the SAIs themselves as well as for the audited and reforming institutions and for policy-making. Design/methodology/approach The paper uses qualitative method and draws on the extensive literature on auditing and evaluation. The analysis has also benefitted from the authors’ recent comparative research on SAIs. Findings The findings, summarized in six points, are that the growth of auditing in areas previously assigned to evaluators, has led to a shortened time perspective; stronger emphasis on the administration of policies; increased focus on efficiency of the audited entity; greater independence from the evaluated organizations; a shift in receiver of information toward the legislature and/or the public; and improved communication. Practical implications Evaluation as a professional and scholarly field has developed theories and advanced methods to assess the effectiveness of public programs. The growth of auditing may thus change the focus and quality of policy evaluation. Originality/value The paper speaks to both scholars and practitioners. To the best of the knowledge a similar analysis has not been done before.

scholarly journals Operating without operations: how is technology changing the role of the firm?

2018 ◽  
Vol 29 (5) ◽  
pp. 809-833 ◽  
Author(s):  
Christoph Breidbach ◽  
Sunmee Choi ◽  
Benjamin Ellway ◽  
Byron W. Keating ◽  
Katerina Kormusheva ◽  
...  
Keyword(s):  
Operations Research ◽  
Design Methodology ◽  
Service Operations ◽  
Science Literature ◽  
Content Type ◽  
The Past ◽  
Technological Advances ◽  
The Future ◽  
Practical Implications

Purpose The purpose of this paper is to analyze the history and future of service operations, with the goal to identify key theoretical and technological advances, as well as fundamental themes that can help to imagine the future of service operations in 2050. Design/methodology/approach A review of the service operations literature was undertaken to inform a discussion regarding the role that technology will play in the future of service operations. Findings The future of service operations is framed in terms of three key themes – complexity, orchestration, and elasticity. The paper makes three contributions to the service science literature by: reviewing key themes underpinning extant service operations research to frame future trajectories of service operations research; elaborating a vision of service operations in 2050 based on history and technology; and outlining a research agenda for future service operations. Practical implications The case of service automation is used to provide an illustration of how the three themes converge to define future service operations, and in particular, to show how technology is recasting the role of the firm. Originality/value Service operations in the next 30 years will be very different from what it was in the past 30 years. This paper differs from other review papers by identifying three key themes that will characterize and instill new insights into the future of service operations research.

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