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    Agrekon

    Agrekon

    JournalISSN 0303-1853eISSN 2078-0400中科院 经济学 4区

    年发文量

    研究主题

    论文(1876)

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    1Measurement Error in Cassava Variety Identification: Results from Comparison of DNA Fingerprinting, Farmer-Reported Data, and a Phenotypic Protocol for Cassava Varietal Identification in Malawi
    John Ilukor, James Stevenson,Talip Kilic,Heather Moylan,Frédéric Kosmowski, Josh Brubaker
    2026
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    2Seven Decades Since Tomlinson: the Evolution of Agricultural and Rural Development Policy in South Africa
    Simphiwe Ngqangweni

    This paper revisits the legacy of the 1954 Tomlinson Report, a seminal blueprint for rural development in apartheid-era South Africa and examines its influence on agricultural and rural development policy over seven decades. It reviews how the Tomlinson themes of economic dualism, tenure reform, modernisation, and farmer empowerment were influential in subsequent scholarship and policy discourse through the apartheid and democratic eras. Despite partial implementation and persistent underdevelopment, Tomlinson's vision continues to inform contemporary debates on land, infrastructure, skills development, and inclusive growth. The paper concludes by pointing to the unfinished agenda of rural transformation and calls for agricultural economists to persist in informing policies that align with Tomlinson's principles.

    2026
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    3In Memorium: Johann (laupie) Laubscher, 1945–2026
    Nick Vink, Theo Kleynhans
    2026
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    4The Inverse Relationship Revisited: Returns to Farm Size and Efficiency in the PLAS Project
    Euan Chew,Siphe Zantsi,Beatrice Conradie

    This paper presents a novel application of the non-monotonic Stochastic Frontier model to South African agriculture in order to investigate the inverse farm size relationship. Using data for 1989 beneficiary farms from the Proactive Land Acquisition Strategy programme, the marginal effects of farm size, managerial capacity and extension frequency on inefficiency and output are estimated and the effect of the Recapitalisation and Development programme evaluated. The estimated results demonstrate that increased farm size is associated with decreasing returns to inefficiency reduction. For livestock farms beyond 2415 ha land is no longer significant in affecting inefficiency. For livestock farms in the 90th and 95th percentile of farm size, the marginal effect of increasing farm size is an increase in inefficiency although this effect is not significant. The non-linearity of the marginal effects of farm size justifies adopting the non-monotonic Stochastic Frontier approach to model the inverse relationship.

    2026
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    5The Effect of Early Weaning of Bonsmara Bull Calves on Their Profitability under Feedlot Conditions
    Kgotso Patrick Matli,Thobela Louis Tyasi, Pieter Fourie

    Profit is a primary factor determining the viability of any enterprise. The objective of this study was to assess the profitability of early- and traditionally weaned calves (EWC and TWC) under feedlot conditions. The feedlot arrival body weights for EWC and TWC were 254.86 +/- 27.28 kg (n = 136) and 308.47 +/- 24.56 kg (n = 149), respectively. A backgrounding program was followed by a 123-day finishing program, with a 1-week grower-adaptation period and a finisher ration provided ad libitum at 3% body weight (BW). The added carcass income (ACI) and total costs (variable and overhead costs) were used to determine the gross margin (GM). Total costs included initial value (IV), average daily feed cost (ADFC), average cost of gain (ACOG), processing costs, and total morbidity and mortality costs. Break-even, sensitivity, and partial budget analyses were conducted to assess profitability. The IV and ACI of the TWC group were significantly (P < 0.05) higher than those of the EWC group by 13.56% (R10 723.23 vs. R9 442.65) and 7.74% (R7 481.37 vs. R6 943.79), respectively. Weaning treatment significantly (P < 0.05) affected ACOG without impacting ADFC. The TWC had a 4.98% lower (R19.80 vs. R18.86) ACOG than the EWC group. Significant differences (P < 0.05) were observed for morbidity and mortality costs: morbidity costs for TWC were 93.64% higher than for EWC (R31.84 vs. R16.44), with average mortality costs of R92.00. Financial models indicate that the TWC group is more profitable than the EWC group under finishing conditions.

    2026
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    立即登录,查看全部 1876 篇论文

    高被引作者

    作者引用发文
    J.F. Kirsten149090
    Gerald F Ortmann115278
    Michael Lyne65143
    Jan A. Groenewald63598
    Zerihun Gudeta Alemu58514
    Rashid Mekki Hassan58525
    W Lieb Nieuwoudt53272
    Tim Hart4783
    Robert P. King4543
    Nick Vink41760

    高产作者

    作者引用发文
    Jan A. Groenewald63598
    J.F. Kirsten149090
    Gerald F Ortmann115278
    W Lieb Nieuwoudt53272
    johan van zyl40069
    Nick Vink41760
    Michael Lyne65143
    M. A. G. Darroch34843
    Herman D Van Schalkwyk34039
    C. J. van Rooyen30338

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    African Journal of Agricultural and Resource Economics