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African Journal of Agricultural and Resource Economics-AFJARE最新文献

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Is change worth it? The effects of adopting modern agricultural inputs on household welfare in Rwanda 改变值得吗?采用现代农业投入对卢旺达家庭福利的影响
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-30 DOI: 10.53936/afjare.2021.16(3).16
Aimable Nsabimana
This study investigates the driving factors that influence farmers’ decisions to adopt modern agricultural inputs (MAI) and how this affects farm household welfare in rural Rwanda. To account for heterogeneity in the MAI adoption decision and unobservable farm and household attributes, we estimate an endogenous switching regression (ESR) model. The findings reveal that size of land endowment, access to farm credit and awareness of farm advisory services are the main driving forces behind MAI adoption. The analysis further shows that MAI adoption increases household farm income, farm yield and equivalised consumption per capita. This implies that adopting MAI is the most consistent and potentially best pathway to reduce poverty among rural farmers. The study hence suggests that policymakers should align the effective dissemination of MAI information and farm advisory services, strengthen farm credit systems and improve market access – most crucially at affordable prices – among small-farmers throughout Rwanda.
本研究调查了影响卢旺达农村农民决定采用现代农业投入品(MAI)的驱动因素,以及这如何影响农户福利。为了解释MAI采用决策的异质性和不可观察的农场和家庭属性,我们估计了一个内生转换回归(ESR)模型。调查结果显示,土地捐赠规模、获得农业信贷的机会和对农业咨询服务的认识是采用MAI的主要推动力。分析进一步表明,采用MAI增加了家庭农业收入、农业产量和人均平均消费。这意味着采用MAI是减少农村农民贫困的最一致和可能的最佳途径。因此,该研究建议决策者应该将MAI信息的有效传播与农业咨询服务结合起来,加强农业信贷体系,并改善卢旺达各地小农的市场准入——最重要的是以可承受的价格进入市场。
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引用次数: 2
Does the inverse farm size productivity hypothesis hold for perennial monocrop systems in developing countries? Evidence from Kenya 反向农场规模生产力假说适用于发展中国家的多年生单作系统吗?来自肯尼亚的证据
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-30 DOI: 10.53936/afjare.2021.16(3).15
J. Ateka, Perez Ayieko Onono-Okelo, M. Etyang
The inverse farm size and productivity relationship (IR) is a recurring theme in the literature. However, most previous studies were undertaken within a setting of mixed cropping systems. In this article, we investigate the effect of farm size on productivity within the context of a perennial monocropping system, acute competition for farmland, frequent subdivision of farms and declining yields. We apply household survey data of smallholder tea farms in western Kenya and consider both technical efficiency (TE) and the yield per hectare as indicators of productivity. The findings show that the effect of farm size on productivity is nonlinear, with TE initially declining and then rising with farm size. The findings also demonstrate that the farm size and productivity relationship is important for perennial monocrops and that the use of robust measures of productivity is important for the IR. The findings have important implications for agricultural policy in developing countries.
反向农场规模与生产力关系(IR)是文献中反复出现的主题。然而,以前的大多数研究都是在混合种植制度的背景下进行的。在这篇文章中,我们研究了在多年生单作制度、激烈的农田竞争、频繁的农场细分和产量下降的背景下,农场规模对生产力的影响。我们应用了肯尼亚西部小农户茶园的家庭调查数据,并将技术效率(TE)和每公顷产量作为生产力指标。研究结果表明,农场规模对生产力的影响是非线性的,TE最初随着农场规模的增加而下降,然后上升。研究结果还表明,农场规模和生产力关系对多年生单作作物很重要,使用强有力的生产力指标对IR很重要。研究结果对发展中国家的农业政策具有重要意义。
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引用次数: 2
Are integrated livestock disease-management practices complements or substitutes? The case of AAT control in rural Ethiopia 综合家畜疾病管理做法是补充还是替代?埃塞俄比亚农村AAT控制的案例
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-30 DOI: 10.53936/afjare.2021.16(3).13
Alirah Emmanuel Weyori
Livestock, particularly cattle, are an integral part of livelihoods in rural sub-Saharan Africa. However, diseases such as African animal trypanosomosis (AAT) have limited the potential of this important sector in the rural household economy. Using a representative sample of small-scale cattle farmers, this study investigates the adoption of modern AAT-management technologies in rural Ethiopia. Specifically, this study investigatesthe adoption of so-called ‘best-bet technologies’ (BBTs), recommended by veterinary experts as complementary measures to manage AAT. The results show that the multiple adoption of BBTs was low. In addition, BBTs were adopted as substitutes, and not as complements as suggested by veterinary experts. The results suggest budgetary constraints are proxied by wealth, and information asymmetry explains the substitution effects. The training and reeducation of veterinary personnel, as well as programmes and interventions that would improve access to livestock-management inputs, should be pursued vigorously by policy makers to increase the adoption of modern AAT-management technologies to improve cattle productivity.
牲畜,特别是牛,是撒哈拉以南非洲农村生计的重要组成部分。然而,非洲动物锥虫病等疾病限制了这一重要部门在农村家庭经济中的潜力。本研究利用小规模养牛户的代表性样本,调查了埃塞俄比亚农村采用现代aat管理技术的情况。具体而言,本研究调查了所谓的“最佳选择技术”(best-bet technologies, BBTs)的采用情况,这是兽医专家推荐的作为管理AAT的补充措施。结果表明,bbt的多重采用率较低。此外,bbt被用作替代品,而不是兽医专家建议的补品。结果表明,财富是预算约束的代理,信息不对称解释了替代效应。决策者应大力推行兽医人员的培训和再教育以及可改善获得牲畜管理投入的方案和干预措施,以便更多地采用现代aat管理技术,以提高牛的生产力。
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引用次数: 1
Complement or substitute: Private investment, public expenditure and agricultural productivity in Nigeria 补充或替代:尼日利亚的私人投资、公共支出和农业生产率
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-30 DOI: 10.53936/afjare.2021.16(3).17
Philip Ifeakachukwu Nwosa
This study examines the complementarity and substitutability effect of private investment and public expenditure on agricultural productivity in Nigeria for the period 1978 to 2018. The study employs the vector error correction modelling (VECM) technique, and the estimate shows that government expenditure on the agricultural sector had the most significant effect on agricultural productivity, followed by commercial bank credit for the agricultural sector. Also, the study found that public expenditure (proxied by government expenditure on the agricultural sector) and private investment (proxied by commercial bank credit for the agricultural sector) are complementary investments in promoting agricultural productivity, while public expenditure on the agricultural sector and foreign direct investment are substitute investments. The study recommends that budgetary allocation to the agricultural sector should be increased, and that commercial banks should be strengthened through the monetary authority by advancing more loans to agricultural businessmen and businesswomen at a reduced lending rate.
本研究考察了1978年至2018年期间尼日利亚私人投资和公共支出对农业生产率的互补性和可替代性影响。该研究采用了矢量误差修正模型(VECM)技术,估算结果显示,政府对农业部门的支出对农业生产率的影响最为显著,其次是商业银行对农业部门的信贷。此外,研究发现,公共支出(以政府对农业部门的支出为代表)和私人投资(以商业银行对农业部门的信贷为代表)是促进农业生产力的互补投资,而农业部门的公共支出和外国直接投资是替代投资。该报告书建议,应增加对农业部门的预算拨款,并通过货币当局以降低贷款利率的方式向农业企业家提供更多贷款,从而加强商业银行。
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引用次数: 0
Influence of weather shocks and coping strategies on food consumption: Evidence from rural Niger 天气冲击对粮食消费的影响和应对策略:来自尼日尔农村的证据
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-30 DOI: 10.53936/afjare.2021.16(3).18
Jianfeng Gao, B. Mills
Weather is an important determinant of household well-being in rural Sub-Saharan Africa. This paper explores the relationship between novel measures of cropping-season weather conditions and household food consumption in rural Niger, and how household coping mechanisms mediate that relationship. We employ a panel logit model to show that the normalised difference vegetation index (NDVI) and extreme heat degree day (EHDD) measures are associated with subjective self-reporting of drought in a panel dataset of 2 264 households. We then show, with a household fixed-effects panel model, that low NDVI and high EHDD measures are associated with significant decreases in household per capita food consumption. Household coping strategies, such as the disbursement of savings, temporary migration of a family member, and the adoption of heat-resistant agricultural technologies, are found to partially mitigate, but not fully alleviate, the negative effects of weather shocks on consumption. More comprehensive coping mechanisms are needed to improve household resilience to weather shocks.
天气是撒哈拉以南非洲农村家庭福祉的一个重要决定因素。本文探讨了尼日尔农村种植季节天气条件的新措施与家庭食品消费之间的关系,以及家庭应对机制如何调解这种关系。我们采用面板logit模型,在一个包含2264户家庭的面板数据集中,显示归一化植被指数(NDVI)和极端高温日(EHDD)措施与干旱的主观自我报告相关。然后,我们用家庭固定效应面板模型表明,低NDVI和高EHDD措施与家庭人均食品消费的显着下降有关。研究发现,家庭应对策略,如储蓄支出、家庭成员临时迁移和采用耐热农业技术,可以部分减轻(但不能完全减轻)天气冲击对消费的负面影响。需要更全面的应对机制来提高家庭抵御天气冲击的能力。
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引用次数: 0
Unconditional factor demands and supply response for livestock products: A farm-level analysis of the Southern Rangelands of Kenya 畜产品的无条件要素需求和供应响应:肯尼亚南部牧场的农场水平分析
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-30 DOI: 10.53936/afjare.2021.16(3).14
John Kibara Manyeki, Balázs Kotosz, Izabella Szakálné Kanó
This paper evaluates output supply and input factor demands for livestock products in the Southern rangelands of Kenya. A flexible translog profit function that permits the application of the primal approach to the output supply and factor demand analysis was estimated using household-level data. The results indicate that the own-price elasticities of supply for cattle, sheep and goats were all positive. The own-price elasticities for the supply of sheep and goat products were elastic, while the own-price elasticities for the supply of cattle products wasinelastic. Cross-price and scale elasticities were found to be within the inelastic range in all cases, with goat production complementing both cattle and sheep production. All factor input demand elasticities for cattle, sheep and goats had the expected negative sign and were inelastic. These results offer a valuable opportunity for the development of pro-pastoral price policies that reduce factor market imperfections and thus enhance livestock productivity in the rangelands of Kenya.
本文评估了肯尼亚南部牧场畜产品的产出供应和投入要素需求。使用家庭层面的数据估计了一个灵活的转换利润函数,该函数允许将原始方法应用于产出供应和要素需求分析。结果表明,牛、羊和山羊自身的供应价格弹性均为正。绵羊和山羊产品供应的自身价格弹性是有弹性的,而牛产品供应的本身价格弹性是无弹性的。交叉价格和规模弹性在所有情况下都处于非弹性范围内,山羊生产补充了牛和羊的生产。牛、绵羊和山羊的所有要素投入需求弹性都具有预期的负信号,并且是非弹性的。这些结果为制定有利于畜牧业的价格政策提供了宝贵的机会,这些政策可以减少要素市场的缺陷,从而提高肯尼亚牧场的畜牧业生产力。
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引用次数: 0
Gender-differentiated stochastic meta-frontier analysis of production technology heterogeneity among smallholder cassava farmers in Ghana 加纳小农户木薯生产技术异质性的性别差异随机元前沿分析
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-06-30 DOI: 10.53936/afjare.2021.16(2).10
Arnold Missiame, P. Irungu, Rose Adhiambo Nyikal
This paper assesses the differences in technical efficiency of, and the cassava production systems employed by, male-managed (MMF) and female-managed (FMF) cassava farms in the Fanteakwa District of Ghana. The study employs the translog stochastic meta-frontier model to analyse data obtained from 300 randomly selected smallholder cassava farmers and finds an average metafrontier technical efficiency (MTE) of 0.06 and 0.03 among MMF and FMF respectively. The technology gap ratios (TGR) are 0.25 and 0.04 for the MMF and FMF respectively. The results suggest that both MMFs and FMFs are technically inefficient. However, the production technology operated on MMFs is relatively superior to that operated on FMFs, as shown by the relatively higher TGR for MMFs. The results also reveal that proximity to markets, extension access, off-farm economic activities and formal education are the major contributors to the technical efficiency of the farmers.
本文评估了加纳Fanteakwa地区男性管理(MMF)和女性管理(FMF)木薯农场的技术效率差异以及所采用的木薯生产系统。本研究采用超对数随机元前沿模型对随机选取的300名木薯小农数据进行分析,发现MMF和FMF的平均元前沿技术效率(MTE)分别为0.06和0.03。MMF和FMF的技术间隙比(TGR)分别为0.25和0.04。结果表明,MMFs和FMFs在技术上都是低效的。然而,在MMFs上操作的生产技术相对优于在ffs上操作的生产技术,表现为MMFs的TGR相对较高。研究结果还表明,靠近市场、推广渠道、非农经济活动和正规教育是农民技术效率的主要影响因素。
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引用次数: 4
Resilience to shocks in Malawian households 马拉维家庭抵御冲击的能力
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-06-30 DOI: 10.53936/afjare.2021.16(2).07
Elizabeth Mubanga Chishimba, P. Wilson
Building up resilience in agricultural households has assumed a critical role in development strategies in recent years because, it is argued, the costs of strengthening resilience are less than the recurring expenditure for disaster assistance. Relying on large household datasets from 2010 and 2013, we explored the resilience of Malawian households to the exogenous shocks of flooding and currency devaluation during this period. We utilised two strategies for understanding resilience. The first, a classification framework pioneered by Briguglio and others, categorises households into resilience and vulnerability spaces. The second approach employs econometric analysis to explore food security resilience. These two complementary analyses reveal that infrastructure, assets, education and non-agricultural employment opportunities contribute most to food security resilience.
近年来,建立农户的抗灾能力在发展战略中发挥了关键作用,因为有人认为,加强抗灾能力的成本低于灾害援助的经常性支出。根据2010年和2013年的大型家庭数据集,我们探讨了马拉维家庭在此期间对洪水和货币贬值等外生冲击的抵御能力。我们使用了两种策略来理解弹性。第一种是由布里格里奥等人首创的分类框架,它将家庭划分为弹性空间和脆弱性空间。第二种方法采用计量经济学分析来探讨粮食安全弹性。这两项互补分析表明,基础设施、资产、教育和非农业就业机会对粮食安全抵御力的贡献最大。
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引用次数: 1
Foodborne diseases and food safety in sub-Saharan Africa: Current situation of three representative countries and policy recommendations for the region 撒哈拉以南非洲的食源性疾病和食品安全:三个代表性国家的现状和对该区域的政策建议
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-06-30 DOI: 10.53936/afjare.2021.16(2).12
Yurani Arias-Granada, Zachary T. Neuhofer, Jonathan Bauchet, P. Ebner, Jacob Ricker-Gilbert
This article examines the current state of food safety preparedness and response in three representative countries in sub-Saharan Africa (SSA): Kenya, Senegal and South Africa. We focus on foodborne diseases associated with the microbial contamination of animal-sourced foods. The results of our analysis indicate that governments in all three countries have official programmes to limit foodborne diseases and mitigate the effects of outbreaks. However, the population in these three countries continues to experience a high burden of foodborne diseases, and knowledge of the specific causes and mitigation of these diseases in SSA is lacking. Furthermore, there is a need for more and better food safety education programming, as we found no study that has collected a representative sample to estimate the level of public awareness of foodborne pathogens in any of the three countries studied. Evidence also suggests that institutional capacity around food safety in both the public and private sectors is insufficient due to limited financial investment and technical capacity. We end by providing suggestions for improving food safety preparedness and response in the region.
本文考察了撒哈拉以南非洲三个有代表性的国家:肯尼亚、塞内加尔和南非的食品安全准备和应对现状。我们专注于与动物源性食品的微生物污染相关的食源性疾病。我们的分析结果表明,这三个国家的政府都有官方计划来限制食源性疾病并减轻疫情的影响。然而,这三个国家的人口仍然承受着食源性疾病的沉重负担,对撒哈拉以南非洲地区这些疾病的具体原因和缓解措施缺乏了解。此外,还需要制定更多更好的食品安全教育方案,因为我们没有发现任何一项研究收集了具有代表性的样本来评估所研究的三个国家中任何一个国家的公众对食源性病原体的认识水平。证据还表明,由于财政投资和技术能力有限,公共和私营部门在食品安全方面的机构能力不足。最后,我们为改进该地区的食品安全准备和应对措施提供了建议。
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引用次数: 1
Preference for improved varietal attributes of Bambara groundnut among smallholder farmers in Ghana 加纳小农对改良班巴拉花生品种属性的偏好
IF 0.6 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-06-30 DOI: 10.53936/afjare.2021.16(2).11
Bright Owusu Asante, Richard Adabah, Kennedy Agyeman, Stephen John Ayeh, R. Aidoo, Daniel Afona
This paper examines farmers’ preferences for an improved Bambara groundnut variety, the key attributes desired, factors influencing preference, and the number of attributes desired by smallholder farmers in Ghana. Using data collected from 113 randomly selected households growing Bambara in the Wenchi and Nkoranza municipalities in southern Ghana, we estimate the factors influencing preference decisions and the intensity of the desired attributes using probit and Poisson regression models respectively. Preference for an improved Bambara variety is influenced by experience in farming, availability of extension services, credit access, membership of farmer-based organisations, plant type, seed colour, household size and yielding capacity. The attributes desired the most by farmers are high yielding capacity, high protein content, branched plant type and seeds that are dark or brown in colour. Furthermore, key factors influencing the number of attributes desired in an improved Bambara variety include the farmer’s sex, education, years of experience in Bambara cultivation, household size, membership of farmer-based organisations and extension services. There is a need to consider these varietal attributes and the factors as integral to research and development efforts, as well as to the policy agenda, to enhance the adoption of improved Bambara varieties for increased productivity and incomes of smallholders in Ghana.
本文考察了农民对改良班巴拉花生品种的偏好,期望的关键属性,影响偏好的因素,以及加纳小农期望的属性数量。本文利用在加纳南部温奇市和恩科兰扎市随机抽取的113个种植班巴拉的家庭收集的数据,分别使用probit和泊松回归模型估计了影响偏好决策的因素和期望属性的强度。对改良班巴拉品种的偏好受到农业经验、推广服务的可用性、信贷获取、农民组织的成员资格、植物类型、种子颜色、家庭规模和生产能力的影响。农民最期望的属性是高产能力、高蛋白质含量、分枝植物类型和深色或棕色种子。此外,影响改良班巴拉品种所需性状数量的关键因素包括农民的性别、教育程度、班巴拉种植经验的年数、家庭规模、农民组织的成员资格和推广服务。有必要将这些品种特性和因素作为研究和开发工作以及政策议程的组成部分加以考虑,以加强对改良班巴拉品种的采用,以提高加纳小农的生产力和收入。
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引用次数: 1
期刊
African Journal of Agricultural and Resource Economics-AFJARE
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