Food security’s complex mash of ingredients

14 March 2021 - 00:00 By WANDILE SIHLOBO

Global agricultural indices typically have to contend with several challenges in the quest to provide a useful measure of any particular subject.

Data consistency in quality, coverage, frequency and reliability across all countries is one of them, as are the weightings and ranking. The compilers of an index have to give thorough consideration to these, because they can be subjective...

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