Search results

In contrast to traditional communication systems, slower data rate has always remained a weak link for non-traditional random communication systems (RCSs), which use alpha-stable (a-stable) noise as a carrier. This paper aims to introduce a fast receiver for skewed a-stable noise shift keying (SkaSNSK)-based RCSs.

The introduced receiver is based on the sign of slant estimator (SoSE), which provides rapid estimation of the skewed a-stable random noise signals (RNSs) received from the additive white Gaussian noise channel. The SoSE-based receiver minimizes the number of samples required to extract the encoded information from the received RNSs. This is achieved by manipulating the antipodal properties of the slant/skewness parameter of the a-stable carrier. Hence, a high data rate with relatively low complexity is guaranteed.

In comparison with the previously introduced sinc, logarithmic and modified extreme value method-based receivers, the proposed SoSE-based receiver also achieves improved bit error rate (BER) along with the better covertness values so that the essence of security provided by SkaSNSK-based RCSs remains intact.

Because of the selected range of the associated parameters of the a-stable noise as a carrier, the BER vs MSNR results are may lack applicability for the complete range of values. Therefore, further research is required to produce results in different ranges.

The study includes implications for the hardware development based on the proposed communication scheme.

It can be seen that the paper fulfils the desired need of a fast receiver design for RCS.

This study is an analysis that aims to understand the rationale behind the concept of value creation contained in the integrated reporting (IR) framework. As such, the authors examined the quality of the disclosures made in integrated reports by measuring the level to which the six capitals (6Cs) have been integrated into disclosures on value creation.

The IR framework’s value creation model focuses on six content elements and three guiding principles. Hence, the present analysis combines content analysis with quantitative measures in the form of a bespoke Integrated Disclosure Index. The index measures the level of integration found in the disclosures instead of the mere presence or absence of mentioned capitals, content elements and guiding principles in isolation. The present sample comprised the 2016 integrated/sustainability reports for 184 listed companies sourced from the Integrated Reporting Examples Database.

The 6Cs are well disclosed in form but only partially disclosed in substance. Further, overall levels of integration between the capitals, the content elements and the guiding principles are higher than average. Disclosures on materiality, business models and stakeholder relationships are somewhat lacking, as are the related medium- and long-term disclosures on outlook.

The paper contributes to the academic debate on IR by building a case for holistically assessing the substance of integrated reports. Considering that the IR value creation model can underpin and align with the 17 UN sustainable development goals, the authors show how the fundamental concept of the 6Cs sustaining value creation is understood and implemented differently across the various elements and principles of the IR framework.

This research also provides guidance for overcoming some of the practical hurdles associated with assessing the quality of reports because the authors provide tools for spotlighting the substance of disclosures over their form.

This paper delves into the substance of integrated reports by assessing how well the 6Cs have been integrated into disclosures on the content elements and guiding principles of the IR framework. In contrast to previous IR research that has mainly analysed capital, elements and principles in isolation, the authors develop an index assessing the integration of these three fundamental concepts of IR.

The purpose of this research is to ascertain the impact of audit committee (AC) activism and independence on the quality and quantity of environmental, social and governance (ESG) disclosures for energy sector firms in Australia. This paper aims to understand how AC attributes such as meeting frequency, and the number of independent directors influence the compliance with the global reporting initiative (GRI) guidelines and quantity of ESG disclosures.

Bloomberg ESG disclosure scores and company reported AC attributes are collected and analysed using the pooled ordinary least square (OLS) regression framework with Petersen’s (2009) technique by using a two-dimensional cluster at the firm and year level. Further, this paper uses a lagged independent variable and two-stage least square approach to address endogeneity concerns.

The results show a significant positive effect of AC activism and independence on the level of compliance with the GRI guidelines, indicating the favourable effect of AC attributes on ESG reporting quality. Likewise, AC attributes positively affect the quantity of ESG disclosures. Notably, the impact of AC attributes is more pronounced on environmental disclosures.

This paper validates the significance of the management control mechanism in improving the quality and quantity of ESG disclosures for an environmentally sensitive sector, hence offering a potential answer to reduce agency and legitimacy issues for the sensitive industry firms.

Studies in corporate social responsibility (CSR) disclosure were initially focused more on disclosure “Quantity” than “Quality” and while they have started to explore “Disclosure Quality”, their assessment mechanisms are found to be immature. Thus, while a number of papers have sought to assess the quality of CSR disclosure, this paper aims to suggest an approach tied closely to both expectations in assessing “quality” derived from the Conceptual Framework for Financial Reporting (revised 2018) and the global reporting initiative. The outcome is to offer a best practice approach to assessing CSR disclosure quality.

In this paper, prior literature is reviewed, qualitative characteristics from the Conceptual Framework for Financial Reporting (revised 2018) and globally recognised guidelines such as the GRI are reviewed. The framework for a “CSR disclosure quality index” as an assessment tool to assess CSR disclosure quality is developed from qualitative characteristics and criteria identified.

The proposed CSR disclosure quality index is developed in stages from the qualitative characteristics identified in the Conceptual Framework for Financial Reporting (revised 2018) and criteria identified from the guidelines discussed. A table was then developed linking the qualitative characteristics to criteria providing a Likert scale approach to assessing the disclosures made by companies to make an assessment of the quality of the companies’ reports. It is argued this provides a robust assessment, being a direct and comprehensive measure of disclosure quality.

As with most qualitative work, there are alternative approaches to establishing an index, but the authors believe this is an approach offering links (and, therefore, credibility) to globally recognised guidelines in the assessment of CSR disclosure quality. Future work could enhance the alignment of this index with the sustainable development goals (SDGs), building on the preliminary connections established in this study.

At a practical level this index offers an approach to reviewing the quality of CSR disclosures which could prove useful to policymakers and in the future development and expansion of this framework offering greater objectivity to assessments and justification for proposed improvement in reporting practice. Also, this index serves as a benchmarking tool for companies to meet the disclosure expectations of stakeholders.

This approach has the potential to substantially fulfil stakeholder expectations by addressing the growing demand for transparency in this area, while avoiding practices that could be perceived as superficial or misleading (greenwashing). Focusing on social issues enables stronger connections between companies and their stakeholders. Furthermore, the index helps companies link their CSR efforts with SDGs and show their commitment to long-term social value building in discussion of governance factors to show accountability expectations are being met.

This paper contributes to CSR disclosure quality literature and provides a reliable method of assessing the quality of CSR disclosures. Opportunities for further and broader developments can be envisaged while offering a credible and reliable approach.

Like many other authors, Briffault recognises the immense contribution of Muslims to civilisation and its influence on the European renaissance. Unlike most other authors, however, Briffault realises that such a contribution was stimulated, motivated and guided by a “new spirit.” Insufficient attention, however, has been given to the source and roots of this “new spirit,” which emerged suddenly and powerfully in the Seventh Century initially among the Arabs who were not known for any significant contribution to science and technology. Nor was the sandy, mostly arid Arabia known as a centre of learning and research.

This study aims to provide a critical assessment of developments in the field of voluntary corporate non-financial and sustainability reporting and disclosure (VRD). The assessment is grounded in the empirical material of a three-year research project on integrated reporting (IR).

Alvesson and Deetz’s (2021) critical management framework structures the arguments in this paper. By investigating local phenomena and the extant literature, the authors glean insights that they later critique, drawing on the empirical evidence collected during the research project. Transformative redefinitions are then proposed that point to future opportunities for research on voluntary organisational disclosures.

The authors argue that the mainstream approaches to VRD, namely, incremental information and legitimacy theories, present shortcomings in addressing why and how organisations voluntarily disclose information. First, the authors find that companies adopting the International IR Council’s (IIRC, 2021) IR framework tend to comply with the framework only in an informal, rather than a substantial way. Second, the authors find that, at times, organisations serendipitously chance upon VRD practices such as IR instead of rationally recognising the potential ability of such practices to provide useful information for decision-making by investors. Also, powerful groups in organisations may use VRD practices to establish, maintain or restore power balances in their favour.

The paper’s limitations stem directly from its aim to be a critical reflection. Even when grounded on empirics, a reflection is mainly a subjective effort. Therefore, different researchers could come to different conclusions and offer different lessons from the two case studies.

The different rationales the authors found for VRD should make a case for reporting institutions to tone down any investor-centric rhetoric in favour of more substantial disclosures. The findings imply that reporting organisations should approach the different frameworks with a critical eye and read between the lines of these frameworks to determine whether the purported normative arguments are achievable practice.

The authors reflect on timely and relevant issues linked to recent developments in the VRD landscape. Further, the authors offer possible ways forward for critical research that may rely on different methodological choices, such as interventionist and post-structuralist research.

The purpose of this paper is to provide a historical analysis of the disaster management structure, policies and institutions in Pakistan between 1947 and 2005, and highlights the contemporary challenges in view of the learning from the past.

The paper uses a historic-integrative case study approach to disaster management and risk reduction policy, planning and practice. Qualitative data were collected through purposive sampling and a case study design was adopted. A broad range of actors was recruited as research participants. In total, 22 semi-structured in-depth interviews were conducted in relation to this study in six different districts of Pakistan to achieve insight into the role of different institutions and stakeholders.

Overall, the post-colonial flood-centric policy framework and fragmented responsibilities of different disaster management institutions show the lack of an effective institutional structure for disaster management and mitigation in Pakistan, particularly at the local level. Until the event of the 2005 earthquake, policies heavily relied on attaining immediate and short-term goals of response and relief while ignoring the long-term objectives of strategic planning for prevention and preparedness as well as capacity building and empowerment of local institutions and communities.

The analysis explains, in part, why disaster planning and management needs to be given due attention in the developing countries at different policy scales (from local to national) especially in the face of limited resources, and what measures should be taken to improve effectiveness at different phases of the disaster management cycle.

The paper advances the importance of a historical case study approach to disaster management and mitigation. The empirical work provides original research evidence about the approaches to dealing with disasters in Pakistan and thus enriches existing knowledge of disaster management policy and planning about the country.

In this study, the authors examine artificial knowledge as a fundamental stream of knowledge management for sustainable and resilient business models in supply chain management (SCM). The study aims to provide a comprehensive overview of artificial knowledge and digitalization as key enablers of the improvement of SCM accountability and sustainable performance towards the UN 2030 Agenda.

Using the SCOPUS database and Google Scholar, the authors analyzed 135 English-language publications from 1990 to 2022 to chart the pattern of knowledge production and dissemination in the literature. The data were collected, reviewed and peer-reviewed before conducting bibliometric analysis and a systematic literature review to support future research agenda.

The results highlight that artificial knowledge and digitalization are linked to the UN 2030 Agenda. The analysis further identifies the main issues in achieving sustainable and resilient SCM business models. Based on the results, the authors develop a conceptual framework for artificial knowledge and digitalization in SCM to increase accountability and sustainable performance, especially in times of sudden crises when business resilience is imperative.

The study results add to the extant literature by examining artificial knowledge and digitalization from the resilience theory perspective. The authors suggest that different strategic perspectives significantly promote resilience for SCM digitization and sustainable development. Notably, fostering diverse peer exchange relationships can help stimulate peer knowledge and act as a palliative mechanism that builds digital knowledge to strengthen and drive future possibilities.

This research offers valuable guidance to supply chain practitioners, managers and policymakers in re-thinking, re-formulating and re-shaping organizational processes to meet the UN 2030 Agenda, mainly by introducing artificial knowledge in digital transformation training and education programs. In doing so, firms should focus not simply on digital transformation but also on cultural transformation to enhance SCM accountability and sustainable performance in resilient business models.

This study is, to the authors' best knowledge, among the first to conceptualize artificial knowledge and digitalization issues in SCM. It further integrates resilience theory with institutional theory, legitimacy theory and stakeholder theory as the theoretical foundations of artificial knowledge in SCM, based on firms' responsibility to fulfill the sustainable development goals under the UN's 2030 Agenda.