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The orange roughy fishery of Namibia: lessons to be learned about managing a developing fishery
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: D. C. Boyer C. H. Kirchner M. K. McAllister A. Staby B. I. StaalesenExploration for orange roughy Hoplostethus atlanticus in Namibia started in 1994 and within 12 months several aggregations had been discovered, suggesting the existence of a biomass sufficient to support a viable fishery. At that early stage it was realized that... -
Development of Bayesian stock assessment methods for Namibian orange roughy Hoplostethus atlanticus
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: M. K. McAllister C. H. KirchnerBayesian methods are useful in fisheries stock assessment because they provide a conceptually elegant and statistically rigorous approach to making decisions under uncertainty. The application of Bayesian stock assessment methods in the management of Namibian orange roughy Hoplosthethus atlanticus within... -
A Bayesian state-space model for mixed-stock migrations, with application to Northeast Atlantic mackerel Scomber scombrus
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CL Cunningham DG Reid MK McAllister GP Kirkwood CD DarbyManagement of fisheries that exploit mixed-stock populations relies on assumptions made concerning stock structure and mixing in different areas. To address the problems of accounting for uncertainty when formulating scientific advice for the management of highly migratory fish stocks, management... -
Uncertainty, cost of capital and financial disclosure: A review of the theory and some evidence
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- University of the Witwatersrand,This paper contains a critical review of the uncertainty research, and reports on the relationship between corporate disclosure and the adverse selection component of the buy-sell (bid-ask) spread of stock prices. Order processing and holding costs will be decoupled from... -
IFRS 3 “grey area” regarding contingent liabilities
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Eloise de Jager --- Department of Accounting, South AfricaAll South African listed companies must prepare their financial statements using International Financial Reporting Standards (IFRS). Although IFRS aims to provide a framework that can be applied to ensure comparable financial information, there are “grey areas” where judgement needs to... -
Fiskale onderskeid tussen ’n wins van ’n kapitale aard en inkomste aard
Item type: Journal Article • Journal: De Ratione • Authors: Hendrik Coetzee --- Deeltydse professor by die Randse Afrikaanse Universiteit en verbonde aan die belastingpraktyk van KPMG, -
Uncertainty, cost of capital and financial disclosure: A review of the theory and some evidence
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- University of the Witwatersrand,This paper contains a critical review of the uncertainty research, and reports on the relationship between corporate disclosure and the adverse selection component of the buy-sell (bid-ask) spread of stock prices. Order processing and holding costs will be decoupled from... -
CEO's use of financial and non-financial performance measures: Manufacturing companies in Mauritius and Australia compared
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: DW Taylor --- School of Accounting, Curtin University of Technology, Australia T Soobaroyen --- School of Management, University of Mauritius, C Ah-Hen --- School of Management, University of Mauritius,It is contended in a body of management accounting literature that financial performance measures are being rendered less relevant than non-financial measures in the management of companies. Such a management trend towards non-financial performance measures is particularly applicable to manufacturing... -
A review of the assessments of the major fisheries resources in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CL de Moor --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa SJ Johnston --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa A Brandão --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa RA Rademeyer --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa JP Glazer --- Branch: Fisheries Management, Department of Agriculture, South Africa LB Furman --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa DS Butterworth --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South AfricaThe waters off South Africa's coastline boast a rich mix of commercially fished species. Quantitative assessments of these marine resources have developed from simple methods first applied in the 1970s, to models that encompass a wide range of methodologies. The... -
The deterioration of production schedules during unforeseen disruptions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: J.M. Ikome --- Department of Industrial Engineering, South Africa M.G. Kanakana --- Department of Industrial Engineering, South Africa S.P. Ayodeji --- Department of Industrial Engineering, South AfricaIn most real-world environments, production scheduling is an ongoing process where the presence of a variety of unforeseen disruptions is usually inevitable, and continually forces reconsideration and revision of pre-established schedules. Many of the approaches developed to solve the problem... -
Robust optimisation of forest transportation networks: a case study
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: G Murphy HC StanderForest transportation costs are the major cost component for many forest product supply chains. In order to minimise these costs, many organisations have turned to optimisation models to guide decisions that are extremely complex in nature. These models generally assume... -
Responding to COVID-19: Insights from African firms
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Rebecca Namatovu --- , Denmark Marcus M. Larsen --- , DenmarkThe severity of the COVID-19 pandemic is underscored by its systemic distortion of socioeconomic and political agendas around the world. It has disproportionately affected fragile states, and has exposed economies with inefficient safety nets. In this article, we contend that... -
Does economic policy uncertainty aggravate financial constraints?
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Lewis Makosa --- , China Sun Jie --- , China Wellington Garikai Bonga --- , Zimbabwe Moses Jachi --- , Zimbabwe Lovemore Sitsha --- , ZimbabweThis paper examines the impact of economic policy uncertainty on economic growth due to its effects on firms' investment decisions, which subsequently justify firms' financial constraints. Using a sample of Chinese listed firms, the study documents that economic policy uncertainty... -
To act or not to act: Cultural hesitation in the multicultural hospitality workplace
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Anne Keizer-Remmers --- , The Netherlands Vasilena Ivanova --- , The Netherlands Anja Brandsma-Dieters --- , The NetherlandsThis article aims to describe the behaviour, feelings and emotions of hospitality professionals regarding the phenomenon of handelingsverlegenheid (which we translate as “awkwardness to act”) in intercultural professional settings. The overall purpose of this study is to understand how middle... -
The effects of economic policy uncertainty on the US REITs ETFs: A quantile analysis
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Husni Charif --- , Lebanon Ata Assaf --- , Lebanon Ender Demir --- , Iceland Khaled Mokni --- , Saudi ArabiaThis paper investigates the impact of economic policy uncertainty (EPU) on real estate investment trusts (REITs) ETFs in a quantile-based framework by employing the nonparametric causality test and the quantile autoregressive (QAR) model. Using data covering the returns of eight... -
Economic policy uncertainty and industry portfolio returns in the United States
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Asil Azimli --- , TurkeyThis paper examines whether returns on 49 different industry portfolios in the United States (US) expose significantly to the US economic policy uncertainty (EPU) even after controlling for the market and firm-specific risk factors. We find that the US EPU... -
Double-edged sword effect of servant leadership on employee creativity: Mediation–moderation analysis
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Hui Wang --- Xiangtan University, China Xueshuang Chen --- Xiangtan University, China Jian Zhu --- Xiangtan University, China Xiangqing Li --- Xiangtan University, ChinaDrawing on social information processing theory (SIPT), this study examines the mediating role of creative self-efficacy and follower dependency on the relationship between servant leadership and employee creativity, focusing on task uncertainty moderation. Data was collected from 338 employees in... -
Primary caregivers’ perspectives of the disruptive behaviour of their children attending Weskoppies Psychiatric Hospital, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Lanél Maré --- University of Pretoria, South Africa Werdie van Staden --- University of Pretoria, South Africa Junaid Hassim --- University of Pretoria, South AfricaWhile practitioners might engage caregivers on their understandings of the disruptive behavioural disorders of their children, their perspectives are yet to be examined in a qualitative study. This study explored perspectives of primary caregivers on the disruptive behaviour of children... -
Covid-19 infection as ritual process in Venda, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Fraser G. McNeill --- University of Pretoria, South AfricaThis article offers an ethnographic account of Covid-19 infection in Venda, South Africa. During July 2021, a research interlocutor and I tested positive for the virus and embarked on a 10-day period of isolation together. During this time, we practiced... -
The interconnectedness and spillover effects among economic uncertainty, energy-related risks and sovereign risk in BRICS economies
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Pascal Xavier Gnagne --- School of Economics, University of Johannesburg, South Africa Beatrice D. Simo-Kengne --- School of Economics, University of Johannesburg, South Africa Mathias Mandla Manguzvane --- School of Economics, University of Johannesburg, South AfricaEmerging economies experiencing energy-intensive growth face increased energy price volatility, which could fuel macroeconomic instability with possible implications on their debt repayment capacity. This study implements a quantile vector autoregressive model on a dataset collected between April 2011 and July... -
Research on the influence of fiscal policy uncertainty on corporate strategic investment – Evidence from China
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Xuejiao Yu --- Central University of Finance and Economics, China Xiaomin Cao --- Central University of Finance and Economics, China Junjian Gu --- Wuhan University of Technology, ChinaCorporations should pay attention to various policies issued by The Chinese government when making strategic investment. This paper discusses the influence of fiscal policy uncertainty on corporate strategic investment and its mechanism. The results show that the uncertainty of fiscal... -
Risk spillovers among global oil & gas firms
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Oluwasegun B. Adekoya --- University of Maine, USA Johnson A. Oliyide --- University of Maine, USA Ademola B. Akinseye --- Tai Solarin University of Education, Nigeria Mamdouh Abdulaziz Saleh Al-Faryan --- University of Portsmouth, UKThis study examines the risk spillovers among the world’s top oil & gas firms, accounting for the role of environmental fiscal policies, economic policy uncertainty (EPU), and regulatory quality. We find evidence of high risk spillovers among the oil &... -
Punishment possibility and implicit morality: The moderating role of moral identity
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Chang-Jiang Liu --- Nanjing Normal University, China Fang Hao --- Nanjing Normal University, ChinaWe investigated the relationship between the possibility of punishment and implicit moral judgments, as well as the moderating role of moral identity on this relationship. Participants (n = 159, mean age = 21.64 years, SD = 2.47 years) first performed...