Search results
1 – 10 of 56Paley's and Hardy's inequality are proved on a Hardy-type space for the Fourier–Dunkl expansions based on a complete orthonormal system of Dunkl kernels generalizing the classical…
Abstract
Purpose
Paley's and Hardy's inequality are proved on a Hardy-type space for the Fourier–Dunkl expansions based on a complete orthonormal system of Dunkl kernels generalizing the classical exponential system defining the classical Fourier series.
Design/methodology/approach
Although the difficulties related to the Dunkl settings, the techniques used by K. Sato were still efficient in this case to establish the inequalities which have expected similarities with the classical case, and Hardy and Paley theorems for the Fourier–Bessel expansions due to the fact that the Bessel transform is the even part of the Dunkl transform.
Findings
Paley's inequality and Hardy's inequality are proved on a Hardy-type space for the Fourier–Dunkl expansions.
Research limitations/implications
This work is a participation in extending the harmonic analysis associated with the Dunkl operators and it shows the utility of BMO spaces to establish some analytical results.
Originality/value
Dunkl theory is a generalization of Fourier analysis and special function theory related to root systems. Establishing Paley and Hardy's inequalities in these settings is a participation in extending the Dunkl harmonic analysis as it has many applications in mathematical physics and in the framework of vector valued extensions of multipliers.
Details
Keywords
Mohammed Yaw Broni, Mosharrof Hosen, Hardi Nyagsi Mohammed and Ganiyatu Tiamiyu
Actions of incumbent politicians and firms’ managers during election years have been cited as sources of many problems that afflict economies and business entities. Given the…
Abstract
Purpose
Actions of incumbent politicians and firms’ managers during election years have been cited as sources of many problems that afflict economies and business entities. Given the controversies surrounding the impact of elections on firms’ soundness, this paper poses a question of whether banks should be averse to elections. Specifically, this study aims to investigate the impact of elections on the profitability and efficiency of banks.
Design/methodology/approach
Based on the authors’ knowledge, this is maiden analysis in this context for Ghana where relatively advanced appropriate GMM technique has been used on annual data from 2012 to 2016.
Findings
This study reveals that banks make higher returns in election years. Additionally, the authors report that government’s economic policies in election years are detrimental to management efficiency, though insignificant.
Practical implications
From an emerging economy perspective, this study would guide policymakers in designing policies that respond to, or minimize, the impact of elections on bank performance. The result of this analysis would also substantiate the market reaction to the changes in the economic, political and financial conditions.
Originality/value
This analysis suggests that firms’ performances in an election year depend on policies and political institutions in place. The authors argue that Ghana, with its exemplary democratic credentials and strong institutions, living alongside a high perception of corruption, is different. The contribution to literature is, first, by limiting this work to the banking sector of Ghana and, second, by incorporating the behaviors of incumbent governments and individuals in the regression specification model.
Details
Keywords
Angela Wroblewski and Rachel Palmén
Gender equality plans (GEPs) are currently the preferred approach to initiate structural change towards gender equality in research organisations. In order to achieve structural…
Abstract
Gender equality plans (GEPs) are currently the preferred approach to initiate structural change towards gender equality in research organisations. In order to achieve structural change, GEPs have to be more than just a formally adopted institutional policy. Effective GEPs lead to a transformation of gendered practices and thus to structural change. This chapter presents the innovative approach developed for an H2020 structural change project and its theoretical background. We argue that due to the dual logic, which characterises academic organisations, the organisational logic and the academic logic, change is a complex endeavour. To deal with this complexity, one of the main functions of a GEP is to provide space and initiate reflexivity at an individual as well as at an institutional level. A theory of change approach supports reflexivity in all stages of a GEP as it ensures that basic assumptions of the institutional change process are questioned and reflected on by the different stakeholder groups involved in the implementation.
Details
Keywords
Anderson Soares Furtado Oliveira, André Nunes and Mariana Guerra
This article results from a survey on national and international research articles published from 1947 to 2018 that aimed to produce a theoretical framework and description of…
Abstract
Purpose
This article results from a survey on national and international research articles published from 1947 to 2018 that aimed to produce a theoretical framework and description of education governance.
Design/methodology/approach
The study was based on bibliographic research techniques. Its bibliometric analysis (Pritchett, 2001) focused on three structural indicators: 1) keywords, 2) most relevant journals and 3) most productive researchers. A survey was made targeting national and international research articles on education governance published from 1947 to 2018 as available on Scopus.
Findings
The survey pointed out the fundamentals of the education governance dimensions as posited in Hufty’s (2011) Governance Analytical Framework, namely: problems, social norms, actors, nodal points and processes.
Originality/value
The study provides the theoretical framework for establishing operational definitions of aforementioned dimensions that can be used in an education governance assessment instrument.
Details
Keywords
Paul A. Phillips, Stephen Page and Joshua Sebu
This paper examines the theoretical issues and research themes of business and management impact. Our empirical setting is the UK Research Excellence Framework 2014 (REF 2014) and…
Abstract
This paper examines the theoretical issues and research themes of business and management impact. Our empirical setting is the UK Research Excellence Framework 2014 (REF 2014) and the focus is on the nature of research impact. Stakeholders, including Governments, now expect academic outputs to translate to real world benefits beyond the narrow bibliometric type metrics.
Despite decades of academic literature devoted to business and management research impact, current theories cannot explain the apparent disconnect between academic, economic and societal practice. Adopting a UK Business and Management perspective to frame our investigation, we consider the highly contested rhetorical question – What are the current themes and impacts of Business and Management research?
We propose a definition for research impact and consider its measurement. Then, using the 410 Impact Case Studies submitted to REF 2014 #x2013; Unit of Assessment 19, business and management, we examine how high impact unfolds. The implications for business and management research impact from the perspectives of economic, knowledge and responsibility impacts are considered.
Details
Keywords
Christopher Gibbins, Margaret D. Weiss, David W. Goodman, Paul S. Hodgkins, Jeanne M. Landgraf and Stephen V. Faraone
This is the first study to evaluate ADHD-hyperactive/impulsive subtype in a large clinical sample of adults with ADHD. The Quality of Life, Effectiveness, Safety and Tolerability…
Abstract
This is the first study to evaluate ADHD-hyperactive/impulsive subtype in a large clinical sample of adults with ADHD. The Quality of Life, Effectiveness, Safety and Tolerability (QuEST) study included 725 adults who received clinician diagnoses of any ADHD sub-type. Cross-sectional baseline data from 691 patients diagnosed with the hyperactive/impulsive (HI), inattentive (IA) and combined sub-types were used to compare the groups on the clinician administered ADHD-RS, clinical features and health-related quality of life. A consistent pattern of differences was found between the ADHD-I and combined subtypes, with the combined subtype being more likely to be diagnosed in childhood, more severe symptom severity and lower HRQL. Twenty-three patients out of the total sample of 691 patients (3%) received a clinician diagnosis of ADHD -hyperactive/impulsive subtype. Review of the ratings on the ADHD-RS-IV demonstrated, however, that this group had ratings of inattention comparable to the inattentive group. There were no significant differences found between the ADHD-HI and the other subtypes in symptom severity, functioning or quality of life. The hyperactive/impulsive subtype group identified by clinicians in this study was not significantly different from the rest of the sample. By contrast, significant differences were found between the inattentive and combined types. This suggests that in adults, hyperactivity declines and inattention remains significant, making the hyperactive/impulsive sub-type as defined by childhood criteria a very rare condition and raising questions as to the validity of the HI subtype in adults.
Details
Keywords
Anh T.P. Tran and Harald Von Korflesch
Entrepreneurial intention plays a major role in entrepreneurship academia and practice. However, little is known about the intentions of entrepreneurs in the social area of…
Abstract
Purpose
Entrepreneurial intention plays a major role in entrepreneurship academia and practice. However, little is known about the intentions of entrepreneurs in the social area of venture creation. This paper aims to formulate a well-organized model of social entrepreneurial intention.
Design/methodology/approach
The paper draws on intention models in entrepreneurship literature in general and social entrepreneurship in particular to identify gaps. Based on these findings, a new conceptual model is formulated.
Findings
There is no research to be found which uses the social cognitive career theory (SCCT) to explain about an individual’s intention to become a social entrepreneur, although this theory is recently suggested as an inclusive framework for entrepreneurial intention (Doan Winkel et al., 2011). It is also supportive by the empirical research of Segal et al. (2002). Therefore, a conceptual model of entrepreneurial intention in the field of social entrepreneurship is formulated based on adapting and extending the SCCT.
Originality/value
The paper contributes to the social entrepreneurship literature by providing new insights about social entrepreneurial intention. The result has important implications for theory and practice. In theory, it is the first model offering the SCCT as the background of formation for social entrepreneurial intention, with a distinct perspective of social entrepreneurship as a career. It raises a future direction for researchers to test this model. In practice, this framework provides a broad view of factors that could contribute to the success of the would-be a social entrepreneur.
Details
Keywords
Sophie E. Jané, Virginie Fernandez and Markus Hällgren
The purpose of this paper is to reflect upon how encountering trauma unexpectedly in the field informs the doing of fieldwork.
Abstract
Purpose
The purpose of this paper is to reflect upon how encountering trauma unexpectedly in the field informs the doing of fieldwork.
Design/methodology/approach
A reflexive essay approach was adopted to explore traumatic incidents in extreme contexts. Written vignettes, interviews, field notes and information conversations served as the bases for reflections.
Findings
Four themes arose from the reflections (Bracketing, Institutional Pressure, Impact on Research and Unresolvedness). It was suggested that researchers engaged in extreme context research, and management and organization studies scholars engaged in dangerous fieldwork more broadly, are under institutional pressure to continue work that may put themselves in harm's way. Traumatic experiences also shape and reflect the researcher's identity, which informs choices about current and future research projects.
Research limitations/implications
It was suggested that scholars will benefit from reading the accounts of others to reduce the burden of isolation that can accompany traumatic field experiences.
Originality/value
Exploring single traumatic events enabled in engaging with trauma encountered unexpectedly and directly in the field. The reflections reveal the effects of psychological and physical trauma on researchers, and highlight how trauma impacts the research process.
Details