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Bycatch in the gillnet and beach-seine fisheries in the Western Cape, South Africa, with implications for management
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: K. Hutchings S. J. LamberthInterview questionnaires and access point surveys were conducted in order to describe and quantify the catch composition of the inshore net-fisheries in the Western Cape, South Africa. A total of 138 562 fish, representing 29 species from 20 families, was... -
Role of pelagic crustaceans in the diet of the longnose lancetfish Alepisaurus ferox in the Seychelles waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Potier F Ménard Y Cherel A Lorrain R Sabatié F MarsacThe role of pelagic crustaceans in the diet of the longnose lancetfish Alepisaurus ferox was investigated from stomach content analysis of fish collected in the waters surrounding the Seychelles Archipelago in the western Indian Ocean. Crustaceans accounted for 88.4% by... -
A review of metformin and its place in the diabetes guidelines
Item type: Journal Article • Journal: South African Family Practice • Authors: Gail Mkele [AN0001]Metformin is considered to be the initial drug of choice for type 2 diabetes mellitus, particularly in overweight patients. This is based on its effectiveness in achieving glycaemic control, its favourable effects on weight, its low risk of causing hypoglycaemia... -
Estimating present and future profits within the Namibian hake industry: a bio-economic analysis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CH Kirchner --- Graduate School of Business, South AfricaNamibia's fishing industry is managed using a system of fishing rights and individual fishing quotas. This property rights system was intended to encourage the local fishing industry to exploit the resource responsibly. Unfortunately, unintended perverse incentives have promoted induced overcapacity... -
Premiums and discounts of exchanged-traded funds
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Wessel M. Badenhorst [cor1]The objective of this study is to determine whether the spread in underlying exchange-traded fund (ETF) investments is a significant cause of the premium/discount of the ETF. Spreads of underlying investment portfolios are alternatively calculated using weighted bid-ask and bid-close... -
Ego-depletion and increased stereotyping of the older adults as forgetful in the Chinese culture
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xiaobin Zhang --- , China Cheng Peng --- , ChinaThe stereotype that older adults are forgetful is pervasive and leads to age-related prejudice and discrimination. We aimed to explore the influence of ego-depletion on forgetful stereotyping of older adults. Our participants were 65 adult college students (females = 23, mean age = 21.5... -
Vitamin B12 deficiency in patients with diabetes at a specialised diabetes clinic, Botswana
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: L Kwape --- , Botswana C Ocampo --- , Botswana A Oyekunle --- , Botswana JC Mwita --- , Botswana -
Early evidence on the performance of hedged exchange traded funds
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Joseph K. W. Fung --- , Jason M. K. Cheng --- , Hong Kong F. Y. Eric Lam --- ,This study provides early evidence on the performance of Hedged Exchange Traded Funds (HETFs), which were introduced around 2006. These securities track and enable retail investors to access two hedge fund strategies: global macro and long/short equity. Using monthly data... -
Multi-asset allocation of exchange traded funds: Application of Black–Litterman model
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Mei-Ling Tang --- , Taiwan Feng-Yu Wu --- , Taiwan Ming-Chin Hung --- , TaiwanThe Black–Litterman (BL) model allows investors to apply their subjective views to asset allocation optimisation. In this study, we construct a multi-asset allocation portfolio of iShares exchange traded funds (ETFs) using mean–variance (MV) and BL models. Two investment strategies, namely... -
Price discovery or overreaction? A study on the reaction of Asia Pacific country ETFs to the US stock market
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Rongzhao Ou --- McMaster University, CanadaDespite the presence of arbitrage mechanisms, large premiums (or discounts) for Asia Pacific country ETFs in the US market could still exist in the short run due to the time gap between trading hours of the US and Asia Pacific... -
Interrelations between metformin administration and vitamin B12 concentrations in a black South African diabetic cohort: a retrospective cohort analysis
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: B Naidoo --- Greys Hospital, University of KwaZulu-Natal, South Africa S Pillay --- King Edward VIII, South Africa D Wilson --- Edendale Hospital, South Africa -
The spillover and leverage effects and trading volume of FinTech Exchange-Traded Funds
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sabbor Hussain --- Chung Yuan Christian University, Taiwan Jo-Hui Chen --- Department of Finance, Chung Yuan Christian University, TaiwanThis paper explores the spillover and leverage effects, as well as trading volume dynamics, of Financial, Technology, and FinTech Exchange-Traded Funds (ETFs) using ARMA-GARCH and ARMA-EGARCH models. The study indicates that these ETF sectors and the stock market index have...