Browsing by Supervisor "Mutsvangwa-Sammie, Eness P."

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The effect of an objective weighting of the Global Food Security Index's natural resources and resilience component on country scores and ranking

Odhiambo, Valiant Otieno (University of Pretoria, 2021)

Composite indicators have gained popularity in various research areas, such as performance monitoring and decision making. However, the determination of an appropriate weighting method is a significant problem in the ...
The effects of outdated data and outliers on Zambia’s 2019 Global Food Security Index score and ranking

Siamayobela, Enock (University of Pretoria, 2021)

While composite indicators have become a valuable tool in policymaking, benchmarking and public communication processes, outliers and outdated data challenge their reliability. Outliers are large or small values in a ...

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