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Tamiru A. Abiye
Dolomitic aquifers are regarded as important groundwater storage sites in South Africa. Since these aquifers occur in a semi-arid climatic setting with low rainfall, often characterized by a torrential downpour and high potential evapotranspiration, the ...
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Maashele Kholofelo Metwane and Daniel Maposa
Financial market data are abundant with outliers, and the search for an appropriate extreme value theory (EVT) approach to apply is an endless debate in the statistics of extremes research. This paper uses EVT methods to model the five-year daily all-sha...
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Maasago Mercy Sepadi and Vusumuzi Nkosi
According to the best of our knowledge, there are no critical studies to date about associations between the work environment and prevalence of respiratory diseases and their symptoms among urban informal vendors in South Africa. This study followed a ri...
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Mary S. Mangai, Anjewayne Clive Pillay, Tyanai Masiya and Stellah Lubinga
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Khutso Mankgele
Pág. 154 - 162
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Benjamin Mudiangombe Mudiangombe and John Weirstrass Muteba Mwamba
This paper examines the effects of the Standard and Poor?s 500 (SP500) stock index crash during the global financial crisis and the COVID-19 pandemic periods on the South African top sector indices (basic materials, consumer goods, consumer services, fin...
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Joel Hinaunye Eita and Charles Raoul Tchuinkam Djemo
This paper attempted to apply an EVT-based pairwise copula method for modelling risk interaction between foreign exchange rates and equity indices of the Johannesburg Stock Exchange (JSE) and to model the dependence structure of the underlying assets wit...
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Katleho Makatjane and Ntebogang Moroke
During the past decades, seasonal autoregressive integrated moving average (SARIMA) had become one of a prevalent linear models in time series and forecasting. Empirical research advocated that forecasting with non-linear models can be an encouraging alt...
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Khahliso Leketa and Tamiru Abiye
Environmental isotope tracers were applied in the Upper Crocodile River Basin, Johannesburg, South Africa, to understand the groundwater recharge conditions, flow mechanisms and interactions between surface and subsurface water. Stable isotope analysis i...
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Ronel J. Cassim,Matthys J. Swanepoel
AbstractOrientation: The effective and timely bankruptcy prediction is crucial to the survival of companies. In order to attain a desired result an effective bankruptcy prediction tool needs to be applied within a South African context.Research purpose: ...
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