bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the day-of-the-week effects of Bitcoin markets: international evidence
Authors: Ma Donglian , Tanizaki Hisashi 
Published: July 2019

Purpose
The purpose of this paper is to examine the day-of-the-week effects of Bitcoin (BTC) markets on the exchange level from January 2014 to September 2018.

Design/methodology/approach
The in-depth study on the day-of-the-week effects is conducted by using data consisting of Bitcoin prices denominated in 20 fiat currencies from 23 Bitcoin trading exchanges through the method of rolling sample for calendar effect proposed by Zhang et al. (2017).

Findings
It is shown by the empirical results that different patterns of the day-of-the-week effects are observed on Bitcoin denominated in various fiat currencies by referring to the price data collected from exchanges. Furthermore, the patterns of the day-of-the-week effects are also available after adjusting Bitcoin prices denominated in domestic currencies into USD.

Research limitations/implications
Because of the discontinuity of data for some daily return series, estimation with dynamic variance is not applicable. It is assumed that the error item follows normal distribution with constant variance.

Originality/value
The day-of-the-week effects are wide-spread in Bitcoin markets, and they are not mainly caused by movements of foreign exchange rates. Actually, empirical findings in this study provide evidence for inefficiency of Bitcoin markets.
Group- and individual-focused transformational leadership
Authors: Chen Yanyu , Lin Yi-Chieh , Hsu Miao-Sui , Lin Yi-Hsin 
Published: July 2019

PurposeThe purpose of this paper is to build a new transformational leadership typology by demonstrating high/low degrees of group- and individual-focused transformational leader behaviors – authentic type (high-high), group-oriented type (high-low) and individual-oriented type (low-high) – and to predict that the three types relate differently to follower responses (intention to sacrifice, cognitive trust of supervisor and affective liking).Design/methodology/approachThis study uses an experimental scenario to generate the maximum levels of between-group variance among the three types. A total of 182 mainland Chinese full-time employees participated in the experiment.FindingsFollowers’ intention to sacrifice is equally high under the authentic, group-oriented and individual-oriented types of leadership. In addition, followers’ cognitive trust of supervisor is equally high under the authentic and group-oriented types and the lowest under the individual-oriented type. Finally, followers’ affective liking is equally high under the authentic and individual-oriented types and the lowest for the group-oriented type.Originality/valueA new transformational leadership typology that combines high and low degrees of group- and individual-focused behaviors is established. Based on this typology, this study shows how the three types distinctively affect followers’ reactions, including intention to sacrifice, cognitive trust of supervisor and affective liking.
Is there such a thing as feminine leadership? Being a leader and not a man in the hospitality industry
Authors: Denizci Guillet Basak , Pavesi Anna , Hsu Cathy H.C. , Weber Karin 
Published: July 2019

Purpose
The purpose of this study is to examine and discuss whether women executives in the hospitality industry in Hong Kong adopt a feminine, masculine or gender-neutral approach to leadership.

Design/methodology/approach
This study focuses on women with positional power in senior-level leadership roles within the hospitality and tourism industry in Hong Kong. A qualitative approach was taken to capture the multiple dimensions of these female executive’s leadership orientations. The participants included 24 women executives.

Findings
Participants’ representations show that women have a multitude of leadership styles that operate on three continua. Not all women executives display leadership orientations that adhere to their indigenous culture values. Individual differences or differences related to the organizational culture are still relevant.

Research limitations/implications
A low number of women in leadership positions in Hong Kong limited the selection process of participants. There might be a selection bias based on that the participants volunteered to participate in the research study and some declined. Findings are based on participants’ memory to reflect on their leadership styles.

Originality/value
Because of the traditional and conventional definitions of leadership, women leaders might feel that they should behave in a masculine way to be taken seriously as a leader. There is a need to understand whether women executives today manage to defeat these stereotypes and comfortably display a feminine approach to leadership. A culture that values and leverages feminine approaches in addition to masculine approaches is likely to have higher engagement and retention of women.
Conflicts and creative idea endorsement
Authors: Adeel Ahmad , Pengcheng Zhang , Saleem Farida , Ali Rizwan , Batool Samreen 
Published: July 2019

PurposeThis paper aims to investigate relationship conflicts and creative idea endorsement to develop the understanding of managerial reactions towards ideas of those who develop relationship conflicts with managers/supervisors at work. Taking a contingency perspective, the authors also investigated role subordinates’ political skills and implementation instrumentality play in determining supervisors’ endorsement of subordinates’ creative ideas.Design/methodology/approachThe authors used two sources of data collected from 243 subordinates and their respective 41 supervisors of a multinational software company operating in an emerging economy (Pakistan) and analyzed the hypothesized model with Mplus using random coefficient modeling.FindingsWith this research, the authors contributed to management literature by investigating how the effects of relationship conflicts on creative idea endorsement depend on subordinates’ political skills and implementation instrumentality. They postulate a negative relationship between relationship conflict and creative ideas endorsement and predict that this negative relationship is augmented by subordinates’ implementation instrumentality but attenuated by subordinates’ political skills. They also give directions to decision makers in organizations that they must inform the managers/supervisors about negative effects of their relationship conflict with their subordinates and train supervisors and subordinates about reducing their relationship conflicts with each other for mutual benefits.Originality/valueOrganizations should take a relationship perspective when creating an environment for creativity: an environment based on mutual trust and respect so that exchange relationships can foster. With this research, the authors extended the list of potential detriment associated with relationship conflicts, that is the endorsement of creative ideas by supervisors. The authors also extended creativity literature by investigating social relationships for selection-focused creativity (idea endorsement) instead of variance-focused creativity (idea generation).
Barriers to foreign direct investment in the power sector: evidence from Bangladesh
Authors: Mahbub Tareq , Jongwanich Juthathip 
Published: July 2019

Purpose
The purpose of this study is to investigate factors that deter firms from pursuing foreign direct investment (FDI) in Bangladesh’s power sector.

Design/methodology/approach
The study uses a mixed-method approach comprising semi-structured interviews and questionnaires. A quantitative analysis including a one-way analysis of variance and analytical hierarchy process is also included.

Findings
The results reveal that political aspects are the most influential barriers impeding FDI in the power sector, followed by economic and financial, societal and regulatory aspects. Of the individual factors, land acquisition/rent/lease, corruption, political interference, an inadequate gas transmission system and a long independent power producers’ approval process are key obstacles deterring FDI in the power sector. The ownership structure matters in ranking decisions to conduct FDI.

Practical implications
The study can assist managers in identifying key factors that deter FDI in the power sector. It can also assist the government to establish the right policies for the sustainable development of FDI in the power sector.

Originality/value
This study is the first of its kind in Bangladesh’s power sector that analyzes the key barriers hindering FDI systematically. It also discusses policies on removing these barriers for sustainable development of FDI in the power sector.
Capitalizing on women’s entrepreneurial alertness
Authors: Montiel-Campos Héctor 
Published: July 2019

Purpose
The purpose of this study is to examine how human, social and psychological capital influences women’s entrepreneurial alertness and discover if these influences are moderated by job complexity.

Design/methodology/approach
This is a quantitative research study using a purposive sampling method where data are gathered from a self-report survey. The hypotheses are tested using a sample of 274 female middle managers using a hierarchical moderated regression analysis.

Findings
The results support that women’s human and psychological capital are positively related to each dimension of their entrepreneurial alertness, and that these relationships are moderated by job complexity. Results also indicate that women’s social capital is not related to their entrepreneurial alertness.

Research limitations/implications
The most important limitation of this study is that it only considers women who work as middle managers in established firms without considering the specific responsibilities or duties that influence their entrepreneurial alertness and thus generalizability for other contexts may be limited.

Practical implications
The results show that entrepreneurial alertness represents a capability that can be learned and improved and may offer guidance to aspiring women middle managers in how to mindfully discover opportunities with business potential.

Originality/value
This study adds new empirical evidence that contributes to a better understanding of how women, within the context of established firms, enhance the occurrence of entrepreneurial behavior by being alert to entrepreneurial opportunities.
Ranking the enablers promoting female empowerment in the UAE health care sector
Authors: Mehrajunnisa Mehrajunnisa , Jabeen Fauzia 
Published: July 2019

Purpose
The purpose of this study is to identify and rank the enablers that promote female empowerment in the health-care sector in the United Arab Emirates (UAE).

Design/methodology/approach
This study uses the analytic hierarchy process (AHP) to rank the enablers that promote female empowerment in the health-care sector. The AHP model was developed with 7 criteria and 28 sub-criteria based on previous literature. Data were collected through interviews of 24 female Emirati medical professionals. The respondents were selected from UAE-based public and private health-care units. The data collected were interpreted, and a priority vector was assigned to each criterion and sub-criterion.

Findings
It is observed that organizational human resource policies, organizational culture and institutional factors take top priority under the main enablers, and training and development, ethical environment and institutional and legal systems were determined to be the three most important sub-enablers that promote female empowerment in the UAE health-care sector.

Research limitations/implications
The major limitation of this study is that it is conducted only in the UAE. Similar studies should be carried out in other GCC (Gulf Cooperation Council) countries due to the governmental and cultural homogeneity. The study will help policymakers and health-care organizations in the GCC to adopt the best approaches that transform work cultures and realize the potential of investing in female and their contribution to the national economy.

Originality/value
Female empowerment has been a challenging task for the mainstream literature of gender advancement. This study is the first of its kind to propose an AHP model that ranks the enablers that promote female empowerment in the UAE health-care sector.
The anti-wear and extreme pressure performance of CuO and graphite nanoparticles as an additive in palm oil
Authors: Azman Nurul Farhanah , Samion Syahrullail , Moen Muhammad Amirrul Amin , Abdul Hamid Mohd Kameil , Musa Mohamad Nor 
Published: July 2019

Purpose
The purpose of this paper is to investigate the anti-wear (AW) and extreme pressure (EP) performances of CuO and graphite nanoparticles as a palm oil additive.

Design/methodology/approach
In this study, the AW and EP performances of CuO and graphite nanoparticles as additives in palm oil were evaluated using four ball tribotester in accordance to ASTM D4172 and ASTM D2783, respectively. The wear worn surfaces of the steel balls were analysed using high resolution microscope.

Findings
The results obtained demonstrate that CuO and graphite nanoparticles improved the AW and EP performances of the palm oil up to 2.77 and 12 per cent, respectively. The graphite nanoparticles provide better AW and EP performance than that of CuO nanoparticles.

Originality/value
This demonstrates the potential of CuO and graphite nanoparticles for improving AW and EP performances of palm oil base lubricant. Different morphology of nanoparticles will affect the AW and EP performances of nanolubricants.
Performance of polymeric viscosity improver as bio-lubricant additives
Authors: Dandan Muhammad Arif , Samion Syahrullail , Azman Nurul Farhanah , Mohd Zawawi Fazila , Abdul Hamid Mohd Kameil , Musa Mohamad Nor 
Published: July 2019

Purpose
The purpose of this paper is to study the influence of polymeric viscosity improver on the tribological performance of palm kernel methyl ester (PKME).

Design/methodology/approach
Tribological performances of the PKME added with the various concentration of ethylene-vinyl acetate copolymer (EVA) were evaluated using four-ball tribotester under extreme pressure condition. The morphologies of the worn surfaces were observed by using the optical microscope.

Findings
The addition of polymeric viscosity improver (EVA copolymer) has produced positive results towards the tribological properties of PKME. In total, 4 per cent of EVA copolymer is found as the optimum concentration by improving the friction reducing properties and anti-wear behaviour due to the formation of film thickness between two rubbing surfaces.

Originality/value
This work might contribute to the development of vegetable oils as a new source of environmental-friendly lubricant.
Elastic-plasticJ-Tzdominance in bending and tension loadings
Authors: Yusof Feizal , Leong Karh Heng 
Published: July 2019

PurposeCrack tip stresses are used to relate the ability of structures to perform under the influence of cracks and defects. One of the methods to determine three-dimensional crack tip stresses is through theJ-Tzmethod. TheJ-Tzmethod has been used extensively to characterize the stresses of cracked geometries that demonstrate positiveT-stress but limited in characterizing negativeT-stresses. The purpose of this paper is to apply theJ-Tzmethod to characterize a three-dimensional crack tip stress field in a changing crack length from positive to negativeT-stress geometries.Design/methodology/approachElastic-plastic crack border fields of deep and shallow cracks in tension and bending loads were investigated through a series of three-dimensional finite element (FE) and analyticalJ-Tzsolutions for a range of crack lengths ranging from 0.1⩽a/W⩽0.5 for two thickness extremes ofB/(W−a)=1 and 0.05.FindingsBoth the FE and theJ-Tzapproaches showed that the combined in-plane and the out-of-plane constraint loss were differently affected by theT-stress and the out-of-plane size effects when the crack length changed from deep to shallow cracks. The conditions of theJ-Tzdominance on the three-dimensional crack front tip were shown to be limited to positiveT-stress geometries, and theJ-Tz-Q2Dapproach can extend the crack border dominance of the three-dimensional deep and shallow bend models along the crack front tip until perturbed by an elastic-plastic corner field.Practical implicationsThe paper reports the limitation of theJ-Tzapproach, which is used to calculate the state of three-dimensional crack tip stresses in power law hardening materials. The results from this paper suggest that the characterization of the three-dimensional crack tip stress in power law hardening materials is still an open issue and requires other suitable solutions to solve the problem.Originality/valueThis paper demonstrates a thorough analysis of a three-dimensional elastic-plastic crack tip fields for geometries that are initially either fully constrained (positiveT-stress) or unconstrained (negativeT-stress) crack tip fields but, subsequently, theT-stress sign changes due to crack length reduction and specimen thickness increase. TheJ-Tzstress-based method has been tested and its dominance over the crack tip field is shown to be affected by the combined in-plane and the out-of-plane constraints and the corner field effects.
Comment on “Consumer cultural identity…”: global citizenship and reactance
Authors: Batra Rajeev , Wu Yi 
Published: July 2019

Purpose
The purpose of this paper is to reflect on the review paper by Strizhakova and Coulter (“Consumer cultural identity: local and global cultural identities and measurement implications”) and offer several observations that extend the discussion into new territory.

Design/methodology/approach
A short essay.

Findings
The authors pinpoint a lack of research attention within the global consumer culture literature into a manifestation of global identity that can be termed “humanistic global identity.”

Originality/value
The paper contends that the reactance (conflict) Strizhakova and Coulter point to, which may occur between global and local identity and culture, is more likely in a culture and consumption domain than in a “shared-humanity” domain.
Green business strategy and export performance
Authors: Bıçakcıoğlu Nilay , Theoharakis Vasilis , Tanyeri Mustafa 
Published: July 2019

PurposeBuilding upon the insights of the resource-based view and contingency theory, the purpose of this paper is to investigate the boundary conditions of green business strategy on the export financial performance of firms from an emerging economy.Design/methodology/approachA quantitative study was conducted to test the conceptual model. In total, 224 questionnaires were collected from exporting manufacturing companies and were analyzed using full information maximum likelihood.FindingsThe results of the study demonstrate that green business strategy has a strong and positive relationship with export financial performance. Also, environmental orientation and cost leadership play a significant and positive moderating role in this relationship. However, green product differentiation is complementary with green business strategy only when a cost leadership strategy is also maintained.Practical implicationsThe study has practical implications since it identifies green business strategy as an important lever for emerging export managers. More specifically, they have to be aware of the challenges when they operate outside the cost leadership boundaries and should actively seek to develop the environmental orientation of employees and managers.Originality/valueThis study reveals the relationship between green business strategy and export success for emerging country exporters that are understudied and face unique challenges. In particular, the authors explore the contingency factors that strengthen or weaken the relationship and provide additional insight to the question: “when does it pay to be green?” for exporters from emerging economies.
Environmental turmoil and firms’ core structure dynamism: the moderating role of strategic alliances
Authors: Xue Rui , Qian Gongming , Qian Zhengming , Li Lee 
Published: July 2019

PurposeMuch of the extant evidence in the marketing literature posits that firms use strategic alliances to share resources, costs and risks as paths to performance improvements. Drawing from the organizational ecology theory, this study aims to propose a different rationale, namely, that strategic alliances protect a firm’s core structure – its stated goals, authority structure, core technologies and marketing strategies – by mitigating the need for hazardous changes in hostile environments.Design/methodology/approachThis study collected quantitative data using market survey and analyzed the data with the regression method.FindingsUsing Chinese firms in three technology industries as the research setting, this research finds a positive and significant relationship between environmental hostility and core structure dynamism. Although strategic alliances themselves have no direct bearing on core structure dynamism, they are found to moderate this relationship negatively, that is, strategic alliances attenuate the relationship between environmental hostility and structural changes.Research limitations/implicationsThis paper argues that strategic alliances have significant moderating effects on firm performance, that is, firms use strategic alliances to outsource competence to partners and, thus, avoid internal turmoil. However, the moderating effect alone cannot explain the complexity of strategic alliances. There could exist other effects that remain unknown. In addition, individual-level factors could have significant impacts on strategic alliance management. Future studies should look into these issues to advance the authors’ knowledge on strategic alliances.Practical implicationsThe findings of this study show that managers should outsource competence to partners when they experience turmoil in markets. Adapting to market turmoil internally could lead to market failure.Originality/valueThis study provides a new rationale for strategic alliances, that is, firms use strategic alliances to reduce market uncertainty. This rationale has not been reported in the existing literature.
Acoustic comfort in open-plan offices: the role of employee characteristics
Authors: Roskams Michael , Haynes Barry , Lee Pyoung-Jik , Park Sang-Hee 
Published: July 2019

Purpose
This paper aims to determine the extent to which employees’ experiences of acoustic comfort, well-being and productivity in open-plan offices are determined by specific characteristics (including demographic information, task characteristics, and personality traits).

Design/methodology/approach
A questionnaire was distributed to the occupants of three open-plan office sites and was completed by 166 employees in total.

Findings
The results indicated that acoustic comfort in open-plan offices is largely determined by noise sensitivity. Higher noise sensitivity was associated with more negative ratings of acoustical quality, more perceived disturbance by speech and more difficulties in concentration. More negative experiences were also reported by employees with lower interactivity with colleagues.

Practical implications
There is significant inter-individual variability in experiences of acoustic comfort, well-being and productivity in open-plan offices. As such, workplace practitioners should consider acoustic and behavioural solutions for introducing a greater diversity of functional workspaces within the office, so that employees can choose the most suitable working area for their requirements.

Originality/value
Whereas the majority of past acoustics research has been laboratory-based, this study is conducted in real office environments with a representative sample of knowledge workers.