Research Articles (Mathematical Statistics and Actuarial Science)
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Quantile regression analysis of modifiable and non-modifiable predictors of stroke among adults in South Africa
(Bentham Open, 2021)Background: Stroke is the second largest cause of mortality and long-term disability in South Africa (SA). Stroke is a multifactorial disease regulated by modifiable and non-modifiable predictors. Little is known about ... -
Soil fertilization synergistically enhances the impact of pollination services in increasing seed yield of sunflower under dryland conditions
(Cambridge University Press, 2021)To exploit the potential of ecological intensification during sunflower cropping, it is crucial to understand the potential synergies between crop management and ecosystem services. We therefore examined the effect of ... -
Modelling international tourist arrivals volatility in Zimbabwe using a GARCH process
(AfricaJournals, 2021)The aim of the paper was to develop bootstrap prediction intervals for international tourism demand and volatility in Zimbabwe after modelling with an ARMA-GARCH process. ARMA-GARCH models have better forecasting power and ... -
Performance of first-year accounting students: does time perspective matter?
(University of the Free State, 2013)English: Academic failure of first-year accounting students is a national and international problem. Existing research is inconclusive regarding the causes for the failure and does not make provision for the possible ...