bluuebunny/crossref_metadata_2025_split huggingface dataset:
Trading derivatives options contracts: the associated risk and potential
Authors: Singh Vipul Kumar 
Published: December 2018

Learning outcomes
It intends to help the learners assess the scenarios of volatility in the Indian capital market which was caused by unpredictable market forces. It also helps in understanding how analysts struggle to predict the direction of the market and what options strategies can be recommended to be deployed by the investors to maximize returns in such compelling scenarios.

Case overview/synopsis
This case study presents snapshots of high volatilities caused by the market and economic forces in the Indian capital market. It depicts how analysts struggled to predict the direction of the market; and how high volatility can put them in trouble. It also exemplifies as to how by selecting the apt strategies, investors maximize their immediate returns in a volatile period and can produce large returns in a short time.

Complexity academic level
The best time to discuss the case is during the completion of options strategies in the course of Derivatives or Portfolio/Investment Management.

Supplementary materials
Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.

Subject code
CSS 1: Accounting and Finance.
Third-party interventions in workplace bullying: a neoliberal agenda?
Authors: Mawdsley Hazel , Thirlwall Alison 
Published: December 2018

Purpose
Bullying is a persistent, damaging feature of neoliberal workplaces, despite the increased use of third-party interventions (TPIs). The purpose of this paper is to investigate how TPIs relate to individualisation of the employment contract, whether TPIs deflect attention away from bullying and the impact for targets.

Design/methodology/approach
Data were gathered from focus groups and interviews with members and officials of three large UK trade unions.

Findings
TPIs individualise bullying allegations and such interventions are further characterised by impotence, injustice and lack of impartiality, serving to deflect bullying claims and exacerbate targets’ suffering.

Practical implications
Recommendations are made to improve the efficacy of interventions.

Originality/value
This paper increases the limited research into the efficacy of TPIs and makes a significant contribution to debates on neoliberal individualism.
Dual-position excitation technique in flow control over an airfoil at low speeds
Authors: Ebrahimi Abbas , Hajipour Majid , Ghamkhar Kamran 
Published: December 2018

PurposeThe purpose of this paper is to control flow separation over a NACA 4415 airfoil by applying unsteady forces to the separated shear layers using dielectric barrier discharge (DBD) plasma actuators. This novel flow control method is studied under conditions which the airfoil angle of attack is 18°, and Reynolds number based on chord length is 5.5 × 105.Design/methodology/approachLarge eddy simulation of the turbulent flow is used to capture vortical structures through the airfoil wake. Power spectral density analysis of the baseline flow indicates dominant natural frequencies associated with “shear layer mode” and “wake mode.” The wake mode frequency is used simultaneously to excite separated shear layers at both the upper surface and the trailing edge of the airfoil (dual-position excitation), and it is also used singly to excite the upper surface shear layer (single-position excitation).FindingsBased on the results, actuations manipulate the shear layers instabilities and change the wake patterns considerably. It is revealed that in the single-position excitation case, the vortices shed from the upper surface shear layer are more coherent than the dual-position excitation case. The maximum value of lift coefficient and lift-to-drag ratio is achieved, respectively, by single-position excitation as well as dual-position excitation.Originality/valueThe paper contributes to the understanding and progress of DBD plasma actuators for flow control applications. Further, this research could be a beneficial solution for the promising design of advanced low speed flying vehicles.
Homoclinic breather-wave and singular periodic wave for a (2 + 1)D GSWW equation
Authors: Xiaorong Kang , Daquan Xian 
Published: December 2018

Purpose
The purpose of this paper is to discuss the homoclinic breathe-wave solutions and the singular periodic solutions for (2 + 1)-dimensional generalized shallow water wave (GSWW) equation.

Design/methodology/approach
The Hirota bilinear method, the Lie symmetry method and the non-Lie symmetry method are applied to the (2 + 1)D GSWW equation.

Findings
A reduced (1 + 1)D potential KdV equation can be derived, and its soliton solutions are also presented.

Research limitations/implications
As a typical nonlinear evolution equation, some dynamical behaviors are also discussed.

Originality/value
These results are very useful for investigating some localized geometry structures of dynamical behaviors and enriching dynamical features of solutions for the higher dimensional systems.
A pragmatic sociological examination of projectification
Authors: Barondeau Régis , Hobbs Brian 
Published: December 2018

Purpose
Boltanski and Thevenot’s Economies of Worth framework and the project world introduced by Boltanski and Chiapello are well known in the fields of sociology and organization theory, but have been largely ignored in the project management literature. The purpose of this paper is to introduce them into the literature on projects and projectification.

Design/methodology/approach
The framework and the project world are described in detail and compared with two streams of writings that are well known in the field of project management: Making Projects Critical and the project as a complex self-organizing emergent network.

Findings
The paper shows that the framework and the project world are relevant to research in project management and the understanding of the projectification of society.

Research limitations/implications
The framework and the concepts presented could be used in both conceptual and empirical research in project management, particularly the analysis of projects in which disputes occur among stakeholders. Several paths that future developments could follow are identified.

Practical implications
The framework can be used to better understand disputes and identify how they can be resolved or compromises can be found.

Social implications
The analysis by Boltanski and Chiapello showed that the evolution of management practice is linked to changes in society and in the dominant ideology.

Originality/value
The paper introduces a very valuable framework into the project literature.
Determinants of SMEs business success – emerging market perspective
Authors: Kozielski Robert 
Published: December 2018

Purpose
The purpose of this paper is to evaluate the role of selected determinants in building business success (comparative analysis between SME sector and large companies).

Design/methodology/approach
Research conducted among companies operating on the Polish market in 2015. 149 companies from the SME sector and 33 companies from the large companies' sector were submitted to the final analysis. PAPI and CAWI methods were used to collect data.

Findings
The performed research was an attempt to assess the ability of small and medium companies to compete in hectic times. The research was limited in scope. They however proved that rejecting the partial hypothesis was not possible, and as a result, it was also impossible to reject the main hypothesis according to which organizations, using market success determinants (MK – market knowledge, MO – marketing orientation, LO – learning organization) to a greater extent achieve better market performance (BS – business success).

Research limitations/implications
It should be noted that the research methodology had its limitations and imperfections. The research was carried out in the PAPI and CAWI market research forms. Standardization of the research method and research process certainly has its advantages. On the other hand, however, it does limit the in-depth observation. Linking the results of the SME sector survey to the large company sector remains inconclusive. Probably, because of the small size of the sample, the analyzed relationships were statistically insignificant. This applied primarily to the relationship between independent variables (MK – market knowledge, MO – marketing orientation, LO – learning organization) and the dependent variable (BS – business success).

Practical implications
Research has shown that the market success of small- and medium-sized companies depends on not only the ability to learn the market faster than competitors but also marketing orientation and market knowledge. It thus can be said that it is the ability to apply the knowledge and not its scale that is crucial for success. This conclusion seems to take on a completely different meaning in the era of new technologies, especially the phenomenon referred to as big data.

Originality/value
The analysis of the nature of market knowledge, marketing orientation and learning organization has shown how closely these concepts are related, how much they complement each other and facilitate the occurrence of synergy effects. There is a gap in the analysis of the relationship between these variables (market knowledge, marketing orientation, learning organization) and business success, especially in terms of the SME sector on the emerging markets. This paper attempt to reduce this gap.
Achievement motivation and presidential effectiveness
Authors: Knights Alexander R. 
Published: December 2018

PurposeThe achievement motivation construct has long presented a significant challenge to the study of presidential leadership. The purpose of this paper is to overcome the limitations of prior research by proposing that whether achievement motivation is related to effectiveness in the US presidency may not be a matter of if but how achievement motivation is manifested.Design/methodology/approachDrawing on the channeling hypothesis, it was proposed that presidents’ trait behaviors should be accounted for as they directly impact the way that presidents express achievement motivation. To test this thesis, this study relied on data generated from diverse sources that provide both direct and indirect information about US presidents’ personalities and effectiveness, including content analyses of inaugural addresses and presidential biographies and surveys completed by presidential biographers and scholars.FindingsResults show that among achievement motivated presidents, display of motive-congruent, conscientious behaviors contributes to their effectiveness, whereas display of motive-incongruent, agreeable behaviors tends to detract from it.Research limitations/implicationsThe small sample size of US presidents and the limited amount of archival data available for some of these subjects prevented more fine-grained analyses. Thus, further research among senior leaders is needed to not only confirm the explanatory mechanism offered herein, but also explore the possibility that there are optimal levels beyond which the personality traits under study may cease to be a help or hindrance to achievement motivated chief executives.Originality/valueThis study represents the first effort to formally integrate motives and traits in the study of chief executives. The findings of this research also substantiate the need for researchers to consider the complex nature of motives in predicting important outcomes across different contexts.
Influence of steadite on the tribological behavior of cylinder liners
Authors: Cousseau Tiago , Serbino Edison , Rejowski Edney , Sinatora Amilton 
Published: December 2018

Purpose
This paper aims to understand the effect of steadite in gray cast iron (GCI) cylinder liners performance (friction and wear) when lubricated with new lube oil formulations to verify if steadite can be reduced or suppressed from cylinder liners composition.

Design/methodology/approach
The paper presents an experimental approach to quantify the separated effect of lube additives and steadite content on GCI performance. Friction and wear of GCI samples with and without steadite were analyzed under lubricated conditions with a 5W30 lubricant and a base oil of similar viscosity under operating conditions similar to the ones observed at the top dead center of Otto engines. Scanning electron microscopy (SEM)-EDS analysis was used to evaluate wear and tribofilm formation.

Findings
The paper shows that steadite stabilizes friction coefficient and slightly reduces wear in the tests performed with base oil. However, its advantages are marginal in comparison to the ones provided by the fully formulated oil. Furthermore, SEM-EDS analyses of the wear track showed that steadite does not chemically react with zinc and sulfur compounds, reducing the tribofilm formation on the real area of contact and consequently changing the tribosystem behavior.

Originality/value
This paper covers an identified need to study the effect of lube additives and GCI composition using actual piston ring and cylinder liners under operating conditions similar to the ones observed at the top dead center of Otto engines.
Efficient running-in of gears and improved prediction of the tooth flank load carrying capacity
Authors: Zimmer Martin , Bartel Dirk 
Published: December 2018

Purpose
The purpose of this paper is to determine parameters for an efficient running-in of gears and an improved method for the prediction of the tooth flank load carrying capacity.

Design/methodology/approach
In this contribution, a model for the calculation of the pitting life of involute spur gears is introduced, which is based on an extension of the life model according to Ioannides and Harris for rough surfaces. To achieve the most realistic thermal elastohydrodynamic lubrication simulation and stress calculation possible, measured real surfaces and elastic-plastic material properties of the area close to the surface are used. Special attention is paid to the compatibility of the fatigue life calculation for heterogeneous rough surfaces and their consistent consideration in the lifespan calculation.

Findings
A non-destructive running-in for twin-disc pairings can be performed using suitable operating parameters, which subsequently can be transferred to tooth flank tests. Using the extended life model according to Ioannides and Harris, an enhanced prediction of the tooth flank load carrying capacity is possible.

Originality/value
The developed extended life model includes a new numerical approach for calculating the tooth flank load carrying capacity. It has the potential to reliably support and hence to accelerate the design process of gears.
A modified approach to estimating thermodynamic impact on buildings
Authors: Emetere Moses Eterigho 
Published: December 2018

Purpose
Managing the urban housing plan of a very fast-growing city may be difficult if the scientific input, i.e. thermodynamic architecture and the climate change challenges, is not factored into its initial framework. Recent building plan in some parts of a growing city located in a developing country was adopted for the purpose of this research. The purpose of this study is to investigate the impact of poor urban planning on humans.

Design/methodology/approach
The reverberation time analysis was carried using the Ecotect software. In total, 15-year surface temperature data were obtained (1999-2013) from the Global Land Data Assimilation System. Thermal distributions were calculated using beta probability and Gaussian distribution. Also, the parametric study of the solar constant was accomplished using possible mathematical outcomes.

Findings
It was discovered that irrespective of the fabrics of building, air properties and materials within a building, the total heat and sound absorptions are high for the life form. Necessary recommendations were made for further study.

Research limitations/implications
Only the outdoor impact was calculated.

Practical implications
There should be more proactive measures by the urban planning authorities.

Social implications
There would be wide spread of diseases and very low thermal comfort.

Originality/value
This paper illustrates on the most ignored parameter in environmental architecture.
Ascertaining the “Halalness” of restaurants – scale development and validation
Authors: Khan Ghazala , Khan Faiza 
Published: December 2018

PurposeThe purpose of this study is to develop and validate a measurement scale for determining the “Halalness” of restaurants and related behaviour among Muslim consumers in the absence of the halal logo. The study responded to scholarly calls for further research in exploring the consumption practices of Muslims.Design/methodology/approachThe scale was developed and validated using a rigorous methodology recommended in the scale development literature. The study used a total sample of 438 (66 respondents for pilot study, 208 for exploratory survey and 164 for the confirmatory survey) to collect the data. Reliability and validity of the measurement scale was established through average variance extracted, Cronbach’s alpha, composite reliability, critical ratios and discriminant validity.FindingsThe results from the exploratory factor analysis and confirmatory analysis propose a three-dimensional measurement scale with 14 items for establishing the “Halalness” of restaurants and including social servicescape; neighbourhood and behaviour.Research limitations/implicationsThe study was unable to validate a number of cues and behaviour such as the presence of images in the restaurant or consumer responses to the presence of alcohol. The researchers are therefore encouraged to test these cues.Originality/valueThe study addresses a gap in Islamic literature, and it is among the first to provide conceptualisation and empirically validate a scale for measuring the “Halalness” of restaurants. The scale was tested and validated based on samples drawn from two different countries, thereby allowing for generalizability.
Ethnographic reflections on access to care services
Authors: Oute Jeppe , Bjerge Bagga 
Published: December 2018

PurposeThe purpose of this paper is twofold: to explore how gatekeepers’ ways of regulating the researchers’ access to knowledge in/about care services reflect the systemic and interpersonal values that inform Danish welfare systems’ daily workings at the street level; and also explore how the authors’ methodological experiences mirror the value-informed regulatory strategies that professionals and users themselves experience in their daily encounters in the same local practices that the authors have studied.Design/methodology/approachThe paper takes its empirical point of departure in a multisited ethnographic field study of the management of citizens with complex problems in Danish welfare systems.FindingsBy means of Michael Lipsky’s outline of access regulation, the authors will analyze the following regulatory strategies that are identified during the fieldwork: “Gatekeepers’ sympathy and creaming,” “Queuing and delay,” and ‘Withdrawal of consent and “no resources.” The paper suggests that trust, shared goals and sympathy seem to be key to the process of getting access.Originality/valueDespite principles of neutrality, equal rights and access to services in welfare systems, the authors’ experiences thus tend to support other research within bureaucratic and care organizations, which has found that interpersonal relations, sympathy, dislikes, norms and values, etc., can heavily influence timely access to services, tailored information and support.
Organizational culture and performance: a macro-level longitudinal study
Authors: Kim Taesung , Chang Jihyun 
Published: December 2018

PurposeThe purpose of this paper is to take a series of snapshots of perceived organizational culture over time, analyze the longitudinal pattern of its change, examine the relationship between organizational culture and organizational performance and verify if the relationship remains consistent, regardless of the flow of time.Design/methodology/approachCompeting values framework and balanced scorecard are employed to look at organizational culture and its link with organizational performance; the panel data with more than 400 Korean firms from three biennial waves (2011, 2013 and 2015) are analyzed for a macro-level longitudinal examination.FindingsFindings include that clan and market cultures were more prevalent than adhocracy and hierarchy cultures, and clan culture significantly decreased over time (H1); adhocracy, clan and market cultures had a consistently positive relationship with all the performance variables over the years and demonstrated a stronger impact in that order (H2).Research limitations/implicationsThe results call for continued research on organizational culture in a longitudinal and cross-sectional nature, and a more comprehensive culture framework for today’s organizations.Practical implicationsSuggestions include that leaders should engage in bilateral communications and network building for successful organization development and change, and take a comprehensive, long-range approach in conducting cultural assessments.Originality/valueThe current study addresses a lack of empirical support and a single organization, point-of-time perspective in organizational culture research by examining organizational culture and performance with a macro-level longitudinal approach.
Saving green while going green
Authors: Chang C. Edward , Krueger Thomas M. , Witte H. Doug 
Published: December 2018

Purpose
The purpose of this paper is to examine the operating characteristics as well as risk and performance measures of all available self-proclaimed socially responsible funds (hereafter SRFs) in the USA over the ten-year (2007–2016) period. The first research question addressed is: Do SRFs perform as well as the average of all mutual funds in their respective categories? The second research question addressed is: Are SRF expense ratios correlated with fund performance?

Design/methodology/approach
This study analyzes all socially responsible equity mutual funds, as self-reported to Morningstar. This paper empirically compares operating characteristics and performance measures of SRFs relative to category averages in the US mutual fund industry. Operating characteristics include expense ratios and annual turnover rates. Performance measures include conventional return, risk and risk-adjusted return measures.

Findings
Although prior research suggests that socially responsible investing (SRI) indexes and SRI-friendly stocks have favorable returns, this study finds that these self-proclaimed SRFs underperform the average of all mutual funds in matched equity categories. However, this study demonstrates that a simple filter based on expense ratios can identify those SRFs that will enable investors to do quite well while doing good.

Originality/value
The contribution of this paper is twofold. First, the authors report that self-proclaimed SRFs, as a whole, have not generated competitive returns relative to other mutual funds in the same categories over the past ten years. This result contradicts the notion that socially responsible investors do not give up return performance when investing with their conscience. Second, the authors find that those SRFs with expense ratios in the lowest quartile of their respective category have significantly higher risk-adjusted returns and significantly lower turnover than category averages. Thus, by focusing on SRFs with low-expense ratios, socially responsible investors can do quite well while doing good.