bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stability analysis, solitary wave and explicit power series solutions of a (2 + 1)-dimensional nonlinear Schrödinger equation in a multicomponent plasma
Authors: Tian Shou-Fu , Wang Xiao-Fei , Zhang Tian-Tian , Qiu Wang-Hua 
Published: February 2021

Purpose
The purpose of this paper is to study the stability analysis and optical solitary wave solutions of a (2 + 1)-dimensional nonlinear Schrödinger equation, which are derived from a multicomponent plasma with nonextensive distribution.

Design Methodology Approach
Based on the ansatz and sub-equation theories, the authors use a direct method to find stability analysis and optical solitary wave solutions of the (2 + 1)-dimensional equation.

Findings
By considering the ansatz method, the authors successfully construct the bright and dark soliton solutions of the equation. The sub-equation method is also extended to find its complexitons solutions. Moreover, the explicit power series solution is also derived with its convergence analysis. Finally, the influences of each parameter on these solutions are discussed via graphical analysis.

Originality Value
The dynamics of these solutions are analyzed to enrich the diversity of the dynamics of high-dimensional nonlinear Schrödinger equation type nonlinear wave fields.
Do implicit prices show differences in tourists’ valuation on hotel attributes in different time periods and different markets? A case of Beijing
Authors: Shang Tiancheng , Shang Kaiti , Liu Peihong , Sun Xiaotong , Li Xinxin 
Published: February 2021

Purpose
The purpose of this paper is to analyze the implicit prices of hotel attributes in different time periods and different markets.

Design/methodology/approach
With data from the travel meta-search engine, this paper chose 3- to 5-star hotels in Beijing’s central business district and use hedonic price models.

Findings
The results suggest that the attributes with significant implicit prices differ in different time periods; the same attributes with different implicit prices in different time periods; the same attributes with different implicit prices in different market segments.

Originality/value
This study may help to explain the different findings on the relationship between the attributes and room rates of Chinese star-rated hotels in different time periods, and will be useful in both revenue optimization efforts and the design of new hotels projects.
A hedonic model of the association between grocery brand provision and residential rental prices in England
Authors: Clark Stephen , Hood Nick , Birkin Mark 
Published: February 2021

PurposeThis study aims to measure the association between local retail grocery provision and private residential rental prices in England. Renting is an important sector of the housing market in England and local grocery provision is an important aspect of service provision and consumers are known to be highly sensitive to the branding of this type of retailing.Design/methodology/approachThis research uses a novel data source from a property rental Web platform to estimate a hedonic model for the rental market. These models incorporate information on the nature of the properties and their neighbourhoods, with an emphasis on how different retail brands are associated with rental prices. This retail brand is captured on two scales: the provision of local branded convenience stores and the provision of larger stores.FindingsThe study finds clear differentials in how the local grocery brand is associated with rental prices. When controlling for commonly explored confounding factors, “Luxury” retailers such as Waitrose and Marks and Spencer are associated with higher rental prices, while “Discounter” retailers are associated with lower rental prices. This finding has many implications, particularly in relation to potential price changes in an already challenging housing market for many people.Research limitations/implicationsThis is an observational study and as such only associations (not causation) can be implied by these findings.Originality/valueThe focus of this research is on the private residential property market, an important market in England but one that has enjoyed less scrutiny than the sales or socially rented markets. Rather than using general accessibility to retail, this research has differentiated the association by the retail brand and store size, two very important aspects of consumer choice.
Capital requirements, institutional quality and credit crunch in the MENA region
Authors: Awdeh Ali , EL-Moussawi Chawki 
Published: February 2021

PurposeThe introduction of Basel capital adequacy standards (I, II and III) has provoked a large body of empirical and theoretical literature that aimed to detect the consequences of risk-based capital rules on bank lending behaviour and credit availability (and the possible emergence of the credit crunch phenomenon), and came up with divergent conclusions. This study aims at participating in this continuous debate but detecting the applicability of the credit crunch theory in the MENA region, taking into consideration the impact of the institutional environment, which may play a role in mitigating the supply-side credit crunch.Design/methodology/approachThis study exploits the Fixed Effects method on a dataset of 210 banks from 14 MENA countries over the period 1999–2016. The paper exploits the percentage change in bank credit as a dependent variable, capital requirements and three institutional quality variables as explanatory variables, in addition to a set of micro- and macro-economic variables.FindingsThe study finds that the implementation of higher capitalisation ratios does participate in a significant decline in bank credit supply. Additionally, by testing the impact of institutional factors on bank lending, it reveals that good governance and political stability encourage banks to extend credit and soften the credit crunch, while higher level of financial freedom discourages banks from expanding loan supply and even magnifies the decline of credit following tightening capital requirements.Practical implicationsThis paper provides very important insight for MENA policymakers and bank regulators by highlighting the importance of the institutional environment factors in amplifying or softening the effect of higher capital requirements in their economies.Originality/valueIn addition to examining an understudied sample of countries, this paper's originality and value added are represented mainly by testing the impact of institutional environment and governance level on bank lending behaviour.
Vulnerability of poorly literate adult consumers regarding over-the-counter drugs
Authors: Bernardes Juliana Reis , Mattoso Cecília Lima de Queirós , Bouzada Marco Aurelio Carino , Araujo Claudia Affonso Silva 
Published: February 2021

Purpose
This study aims at verifying the impact of literacy on over-the-counter (OTC) drug consumer vulnerability as evaluated by health literacy and label comprehension.

Design/methodology/approach
The item response theory (IRT) was used to estimate the health literacy of two groups and the two-way analysis of variance tests was used to test the hypotheses for the existence of mean differences between the two populations. The convenience sample involved 188 OTC consumers: 94 (50%) poorly literate and 94 (50%) university students/graduates.

Findings
University consumers/graduates have a level of health literacy and label comprehension that is superior to those presented by poor literate consumers. Also, age does not influence the level of health literacy by OTC drug users but has a significant impact on the understanding of OTC drug labels. Finally, the level of schooling and the “age group,” simultaneously, does not impact the understanding of OTC drug labels or health literacy.

Research limitations/implications
This study has added in the field of knowledge by investigating the behavior of poor literate consumers in Brazil, a developing country. The results may be relevant to Marketing professionals, especially those in the pharmaceutical industry, and to police makers, as they help identify the main problems faced by poorly literate consumers.

Practical implications
It is necessary to raise awareness of the dangers of self-medication and wrong use of medications, mainly focused on people with low literacy. As a suggestion, a simple glossary presented along with the label could provide explanations of scientific terms, thus increasing health literacy and reducing the vulnerability of the consumers.

Social implications
This study showed that when using common words such as gastritis to define a health problem, there is a higher degree of correctness. These results suggest the adoption of a more straightforward language and more precise explanations. By doing that, the pharmaceutical industry and policymakers will improve their social impact by increasing consumer power and taking care of the health of the most vulnerable population: the illiterate people.

Originality/value
This study contributes to the international literature, as it enhances and clarifies the knowledge about the customers’ power and vulnerability in developing countries. It fills a gap by evaluating label comprehension and heath literacy at the same time, giving an academic contribution for pharmaceutical consumers’ studies.
Work–family conflict, affective commitment, leadership and job satisfaction: a moderated mediation analysis
Authors: Panda Abinash , Jain Nikunj Kumar , Nambudiri Ranjeet 
Published: February 2021

PurposeThe detrimental influence of perceived work–family conflict (WFC) on employees' job-related attitudes has been examined in individualistic cultures. However, this relationship needs to be studied in collectivist societies, where the “family” is a salient social institution with family-centric work ethics. This study empirically investigates the role of nurturant task leadership (NTL) behavior in attenuating (1) the negative direct effect of perceived WFC on job satisfaction and (2) the negative indirect effect of perceived WFC on job satisfaction, mediated through affective commitment (AC) on a sample of employees from a public sector bank in India.Design/methodology/approachThe study adopts a cross-sectional research design, and the data were collected from 244 executives working in the banking sector of India. The direct, indirect and moderated effects were analyzed using ordinary least squares (OLS) regression.FindingsNTL behavior was found to moderate the negative direct relationships between perceived WFC and job satisfaction as well as the negative indirect relationship between perceived WFC and job satisfaction, mediated through AC.Research limitations/implicationsThe study contributes to existing literature on WFC by introducing an important boundary condition in NTL behavior, thus providing impetus to further research in this direction through research designs that allow for causal inference and generalizability.Practical implicationsFindings from this study can provide useful pointers to organizations dealing with employee performance challenges owing to WFC. Results indicate that leaders who exhibit NTL behavior are more likely to attenuate the negative influence of WFC on employee attitudes and performance.Originality/valueThis study is among the first empirical examination of the effectiveness of NTL behavior in mitigating the negative effects of perceived WFC on job satisfaction.
The different shades of innovation emergence in smart service systems: the case of Italian cluster for aerospace technology
Authors: Troisi Orlando , Visvizi Anna , Grimaldi Mara 
Published: February 2021

Purpose
The purpose of this paper is to explore the emergence of innovation in smart service systems to conceptualize how actor’s relationships through technology-enabled interactions can give birth to novel technologies, processes, strategies and value. The objectives of the study are: to detect the different enablers that activate innovation in smart service systems; and to explore how these can lead dynamically to the emergence of different innovation patterns.

Design/methodology/approach
The empirical research adopts an approach based on constructivist grounded theory, performed through observation and semi-structured interviews to investigate the development of innovation in the Italian CTNA (Italian acronym of National Cluster for Aerospace Technology).

Findings
The identification and re-elaboration of the novelties that emerged from the analysis of the Cluster allow the elaboration of a diagram that classifies five different shades of innovation, introduced through some related theoretical propositions: technological; process; business model and data-driven; social and eco-sustainable; and practice-based.

Originality/value
The paper embraces a synthesis view that detects the enabling structural and systems dimensions for innovation (the “what”) and the way in which these can be combined to create new technologies, resources, values and social rules (the “how” dimension). The classification of five different kinds of innovation can contribute to enrich extant research on value co-creation and innovation and can shed light on how given technologies and relational strategies can produce varied innovation outcomes according to the diverse stakeholders engaged.
Servitization strategy, manufacturing organizations and firm performance: a theoretical framework
Authors: Feng Changli , Jiang Lin , Ma Ruize , Bai Chao 
Published: February 2021

PurposeThe purpose of this paper is to analyze the available literature on the relationship between servitization strategy and firm performance, which identifies the main streams and theoretical foundations of research and provides guidelines for future research in this area.Design/methodology/approachThe paper discusses the relationship between servitization strategy and manufacturing firm performance by gathering and analyzing existing research published between 1988 and 2019 through bibliometric analysis and content analysis, and then unpacking the processes and impacts servitization has on firm performance.FindingsThis paper analyzes the evolution of the concept and servitization strategy of manufacturing organizations, and the relationship between servitization strategy and manufacturing company performance. Then, the authors establish an integrated theoretical framework aimed at conveying the factors and providing a practical reference.Practical implicationsThe paper establishes an integrated theoretical framework on servitization and firm performance. The results of the systematic analysis of the literature can be used to inform managers about implementing servitization. Managers need to measure the benefits of servitization from two aspects: financial performance and non-financial performance. And managers need to consider some internal and external influencing factors to achieve a strategic–environmental–organizational fit that will bring better benefits to the firm.Originality/valueThe paper contributes to the existing research in three different ways. First, the study perfects the gap of research on the range of all of the factors within the relationship between servitization strategy and manufacturing company performance. Second, the study demonstrates a clear indication of how existing studies’ differences influence the research outcomes. Third, this paper proposes research problems and future research directions.
Patterns of overkill in sexual homicides
Authors: Chopin Julien , Beauregard Eric 
Published: February 2021

Purpose
This paper aims to explore the presence of overkill in sexual homicide. More specifically, the study examines whether overkill is a valid indicator of an organized or disorganized sexual homicide. Moreover, the study tests the presence of various patterns of sexual homicide involving overkill.

Design/methodology/approach
The sample used in this study consists of 662 cases of extrafamilial SHs with (n = 145) and without (n = 517) evidence of overkill, respectively. A binomial regression was used to compare at the multivariate level the two groups of crimes, while a latent class analysis was used to determine whether overkill could be associated with different patterns of sexual homicide.

Findings
Findings from bivariate and logistic regression analyses show that the presence of overkill may be associated with both organized and disorganized sexual homicides. Moreover, latent class analysis suggests that there are three distinct patterns of overkill in sexual homicide: impulsive, sadistic and personal.

Originality/value
This study is the first to empirically analyze overkill in sexual homicides and to propose a classification using crime-commission process characteristics.
Peruvian small and medium-sized enterprises and COVID-19: Time for a new start!
Authors: Durst Susanne , Palacios Acuache Mariano Martin Genaro , Bruns Guido 
Published: February 2021

Purpose
Crises of any type have become an integral part of business activity and responses to them could make the difference between survival and failure. This applies in particular to small and medium-sized enterprises (SMEs). Taking the coronavirus (COVID-19) pandemic as a starting point, this study aims to investigate how Peruvian SMEs have been coping with COVID-19 so far. Based on that a conceptual framework is proposed which highlights the practice of SMEs trying to deal with a new type of crisis.

Design/methodology/approach
The study is based on an exploratory qualitative research design involving 25 semi-structured interviews conducted in Peruvian SMEs.

Findings
The findings demonstrate how the Peruvian firms studied to adapt to the new situation and initiate responses to increasing the chance of survival. Furthermore, the role of the companies’ decision-makers, as well as the role of crisis management and other related approaches in the companies are shown.

Research limitations/implications
The paper expands the underdeveloped body of knowledge regarding crisis management in Latin America in general and crisis management in SMEs by providing insight into how Peruvian SMEs perceive and adapt to the COVID-19 pandemic.

Practical implications
The findings presented in this paper have implications for both managers and managerial staff of SMEs but also for the people in charge of the curricula at universities and other teaching-focused institutes.

Originality/value
To the authors’ knowledge, this is the first empirical study of crisis management on the impacts of COVID-19 with a dedicated focus on SMEs from Latin America. It provides fresh insight into current reactions to the Pandemic.
Tax avoidance and audit report lag in South Africa: the moderating effect of auditor type
Authors: Gontara Hela , Khlif Hichem 
Published: February 2021

Purpose
The purpose of this paper is to examine the association between audit report lag (ARL) and tax avoidance and test whether external auditor type affects this relationship.

Design/methodology/approach
ARL is measured as the number of days from fiscal year-end to the date of the auditor’s report, while tax avoidance is measured using effective tax rate.

Findings
Using a sample of 45 South African companies over the period of 2010–2013, the authors document that ARL is positively associated with tax avoidance and this relationship remains positive when the company is audited by a Big-4 audit firm and not significant when the company is audited by a non-Big-4.

Originality/value
The authors’ findings have important implications for auditors aiming to reduce audit risk as they may consider the impact of tax avoidance and pay more attention to companies with a high degree of tax avoidance.
The impact of boardroom internationalisation on online disclosures of S&P 500
Authors: Shehadeh Esam , Aly Doaa , Yousef Ibrahim 
Published: February 2021

Purpose
The purpose of this study is to analyse the level of online disclosure of firms in the USA and to evaluate the impact of diversity in terms of director nationality (boardroom internationalisation) on online disclosure.

Design/methodology/approach
The authors apply, for the first time, a new modified scoring system to measure online disclosure levels by securing more detailed information on each of the items in the voluntary disclosure index. Regarding the percentage of foreign board members, unlike in previous research, the authors calculate two additional proxies to more accurately specify the level of international diversity on the board: the Blau Index and the Shannon Index. Moreover, the authors use a cross-sectional model for the sampled non-financial S&P500 firms using both ordinary least squares (OLS) and heteroskedasticity-corrected estimates to analyse the impact of boardroom internationalisation on the level of online disclosure.

Findings
The findings reveal that the average online disclosure level for the sample in question is 64% for the 0–1 index and 57% for the 0–4 index. In addition, the results of the regression analysis confirm the study’s proposed hypothesis, which is that the presence of international board members correlates with an improvement in the level of online disclosure. This can be attributed to the fact that foreign directors bring unique skills and knowledge from their home countries and thus, increase board discussion, creativity and innovation, which has a positive impact on the level of online disclosure.

Research limitations/implications
Financial firms are subject to capital requirement regulations; consequently, disclosure practices can be influenced. Therefore, these firms were excluded from the sample of the study.

Originality/value
This research contributes to the body of literature on nationality diversity of firm boards and corporate online disclosure in several respects. Firstly, the study adds an international dimension to the existing literature. Secondly, this study provides new evidence that foreign diversity on the board can improve firm value, insofar as the corresponding enhancement of online disclosure leading to positive capital market implications. Thirdly, the authors use, for the first time, a new scoring system approach to measure the level of online disclosure. Finally, it contributes to the corporate governance literature by basing its analysis on a multi-theoretical approach.