Indices of total factor productivity (TFP) measure aggregate output per unit of aggregate input, providing a guide to the efficiency of agricultural production. This article outlines the relationship between production functions and TFP indices. Then, an index is constructed for South African agriculture for the period 1947-91. The index shows that TFP grew at an average rate of 1,3 per cent per annum. However, TFP growth has increased since the reforms of the early 1980s. Since capital has been more realistically priced relative to labour, greater productivity growth has gone together with increasing employment, which must have improved social welfare.
Die doel van hierdie referaat is om nuwe resultate oor die faktore wat surplusprodusentevan ander huishoudings onderskei, bekend te maak. Data verkry uit 'n vraelysopname in die gebiede van KaNgwane waar die "Farmer Support Programme" geimplementeer is, is gebruik om die faktore wat met surplusprodusentegeassosieerword, asook 'n markdeelnemingsprofiel van die huishoudings te bepaal. Hierdie resultate is vergelyk met die resultate van soortgelyke studies. Hierdeur het dit aan die hg gekom dat die resultate van at hierdie studies min of meer dieselfde is, met voorligting en die verskaffing van lcrediet wat deurgaans die bepalende faktore is vir surplusproduksie. Daar is ook gevind dat slegs 'n klein persentasie van die huishoudings surplusproduksie aan die mark lewer. Die meerderheid van die huishoudings is steeds netto verbuikers van voedsel. Weereens bevestig dit die dilemma van die bepaling van voedselpryse in bestaanslandbou.
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