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Economic burden of livestock disease and drought in Northern Tanzania 坦桑尼亚北部牲畜疾病和干旱造成的经济负担
Pub Date : 2019-06-30 DOI: 10.5897/JDAE2018.1028
Haseeb Ahmed, J. Yoder, W. D. Glanville, A. Davis, T. Kibona, B. Mmbaga, F. Lankester, E. Swai, S. Cleaveland
Livestock-dependent communities face considerable livestock disease and drought risk, which can impact herd value, income and consumption. This paper summarizes economic data collected from 404 households in Arusha and Manyara regions of Northern Tanzania in 2016. They provide estimates for (i) herd loss due to disease and drought as a fraction of herd value and income, (ii) the relative risk of disease and drought in small versus large ruminants and (iii) the relationship between livestock disease outcomes and household expenditures. We find that disease and drought losses comprise 10 to 4% of sheep, cattle and goat herd value, and amount to an estimated 62.1% of household income. The drought and disease risk ratios for small versus large ruminants indicate that small stock face higher disease risk, while large ruminants are affected more by drought. Furthermore, cattle abortions are negatively related to schooling expenditure and positively associated with increases in off-farm food expenditure related to livestock management, presumably through increased investments in prevention and therapy. These results suggest that climatic variability and livestock diseases are an important source of economic vulnerability and reducing this burden may help alleviate poverty in livestock-dependent communities. Key words: Household production, livestock disease, drought, herd management, Tanzania.
依赖牲畜的社区面临着相当大的牲畜疾病和干旱风险,这可能会影响牛群价值、收入和消费。本文总结了2016年从坦桑尼亚北部阿鲁沙和曼亚拉地区404户家庭收集的经济数据。它们提供了以下方面的估计:(i)疾病和干旱导致的牛群损失,作为牛群价值和收入的一部分;(ii)小型反刍动物与大型反刍动物疾病和干旱的相对风险;(iii)牲畜疾病结果与家庭支出之间的关系。我们发现,疾病和干旱损失占绵羊、牛和山羊群体价值的10%至4%,估计占家庭收入的62.1%。小型反刍动物与大型反刍动物的干旱和疾病风险比表明,小型反刍动物面临更高的疾病风险,而大型反刍动物受到干旱的影响更大。此外,牛流产与学校教育支出呈负相关,与牲畜管理相关的场外食品支出的增加呈正相关,可能是通过增加对预防和治疗的投资。这些结果表明,气候变异性和牲畜疾病是经济脆弱性的重要来源,减少这一负担可能有助于减轻依赖牲畜的社区的贫困。关键词:家庭生产,牲畜疾病,干旱,牛群管理,坦桑尼亚。
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引用次数: 12
Determinants of intensity of uptake of alternative pest control methods: A case of small- scale tomato farmers in Kenya 替代害虫防治方法吸收强度的决定因素:以肯尼亚小规模番茄种植户为例
Pub Date : 2019-05-31 DOI: 10.5897/JDAE2018.1004
C. W. Kinuthia, O. Ayuya, J. G. Nyaanga
Inappropriate use of chemical pesticide in horticultural production is an emerging problem causing undesirable human health and environmental effects in developing countries including Kenya. Thus, objective of this study is to evaluate the determinants of the intensity of uptake of alternative pest control methods among small-scale tomato farmers in Nakuru County, Kenya. Multistage sampling procedure was used to select a sample of 384 tomato farmers. Data were collected using a semi-structured questionnaire administered by trained enumerators. Alternative pest control methods which were identified during the survey were categorized into four groups using principal component analysis. Determinants of the intensity of uptake of alternative pest control methods were estimated using multivariate tobit model. Group membership, age, education and number of training increased the intensity of uptake of alternative methods. Participation in off-farm activities and farm size decreased the intensity of uptake of alternative methods. These results indicate that farmers’ awareness that involves comprehensive training programs and enhancing the capacity of farmer groups as change agents is warranted. Moreover, these research findings could also inform policymakers while formulating and implementing targeted interventions aimed at promoting the use of alternative pest control methods that minimize negative health and environmental effects from overuse of pesticides. Key words: Alternative pest control, pesticides, intensity, food safety, multivariate tobit model.
园艺生产中不适当使用化学农药是一个新出现的问题,在包括肯尼亚在内的发展中国家造成了不良的人类健康和环境影响。因此,本研究的目的是评估肯尼亚纳库鲁县小规模番茄种植户采用替代害虫防治方法的强度的决定因素。采用多阶段抽样程序对384名番茄种植户进行了抽样调查。数据是使用由受过培训的普查员管理的半结构化问卷收集的。利用主成分分析法,将调查期间确定的替代虫害控制方法分为四组。使用多变量tobit模型估计了替代害虫防治方法的吸收强度的决定因素。小组成员、年龄、教育程度和培训次数增加了采用替代方法的强度。参与非农场活动和农场规模降低了对替代方法的吸收强度。这些结果表明,农民的意识包括全面的培训计划和提高农民群体作为变革推动者的能力是有必要的。此外,这些研究结果还可以为决策者提供信息,同时制定和实施有针对性的干预措施,旨在促进使用替代性害虫控制方法,最大限度地减少过度使用杀虫剂对健康和环境的负面影响。关键词:病虫害替代防治,农药,强度,食品安全,多变量tobit模型。
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引用次数: 1
Value chain analysis of fruits: The case of mango and avocado producing smallholder farmers in Gurage Zone, Ethiopia 水果的价值链分析:以埃塞俄比亚古拉奇地区生产芒果和鳄梨的小农户为例
Pub Date : 2019-05-31 DOI: 10.5897/JDAE2018.1038
Selamawit Mengesha, Dubale Abate, C. Adamu, Aklok Zewde, Yonnas Addis
The study was aimed to analyze avocado and mango value chains actors and identify factors that determine avocado and mango market supply in the selected area of Gurage zone. A total of 259 avocado and mango producers were selected through three-stage sampling technique and 151 traders from different level were used to collect primary data using questionnaire and semi-structured interview. Descriptive and econometrics method of analysis were applied for analysis. Value chain approach analysis result revealed that input suppliers, avocado and mango producer, collectors, wholesalers, retailers, and consumers were the main actors in avocado and mango value chain. The profitability and gross marketing margin approach of market analysis showed that wholesalers received the highest marketing margin (34.62%) and highest profit share (36.75%), while producers received the least marketing margins (15.17%) from avocado and mango trade. Generally, all market participants were operating at profitable level, but producers were relatively disadvantaged from the market as they received lowest share from consumers’ price. Moreover, sex of household, land allocated to mango, market distance, farming experience, extension service, market price, and family labor determined mango market supply. Likewise, education level of household, market distance, farm experience, extension service, and family labor affected market supply of avocado. Accordingly, market performance of avocado and mango has shown that producers were relatively disadvantaged and various determinants contributed to reduced market supply of mango and avocado. Therefore, strengthening of extension service and education of farmers, efficient use of family labor, and improvement of farmers’ experience and infrastructure is recommended. Key words: Avocado, mango, value chain.
该研究旨在分析鳄梨和芒果价值链的参与者,并确定决定古拉格地区选定地区鳄梨和芒果市场供应的因素。采用三阶段抽样法,选取了259家牛油果和芒果生产商,采用问卷调查和半结构化访谈法,选取了151家不同层次的贸易商,收集了原始数据。采用描述性和计量经济学的分析方法进行分析。价值链方法分析结果表明,投入品供应商、牛油果和芒果生产商、收集者、批发商、零售商和消费者是牛油果和芒果价值链的主要参与者。市场分析的盈利能力和毛营销利润率方法显示,批发商获得的营销利润率最高(34.62%),利润份额最高(36.75%),而生产商从鳄梨和芒果贸易中获得的营销利润率最低(15.17%)。一般来说,所有市场参与者都处于盈利水平,但生产者在市场上处于相对不利的地位,因为他们从消费者的价格中获得的份额最低。此外,家庭性别、芒果的土地分配、市场距离、农业经验、推广服务、市场价格和家庭劳动力决定了芒果的市场供应。家庭受教育程度、市场距离、农场经验、推广服务和家庭劳动力同样影响牛油果的市场供应。因此,牛油果和芒果的市场表现表明,生产者处于相对不利的地位,各种因素导致了芒果和牛油果的市场供应减少。因此,建议加强对农民的推广服务和教育,有效利用家庭劳动力,改善农民经验和基础设施。关键词:鳄梨,芒果,价值链。
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引用次数: 9
Determinants of household transition into and out of poverty in Benin 贝宁家庭脱贫和脱贫的决定因素
Pub Date : 2019-05-31 DOI: 10.5897/JDAE2017.0913
Hortensia Acaha-Acakpo, Jules Yehouenou
This study tries to determine the differentiated factors of households’ transition to poverty in Benin. It was carried out on a sample of 6424 households making up data from the integrated modular survey on household living conditions. Descriptive analysis and econometric modeling as Stata 12 was used. From the results of this study, it appears that the geographical location of households in cotton and rice fields increases their chances to emerge from poverty. That reflects the positive effect of a good agricultural season on household living standard. Increasing the household size increases the household's risk of entering or remaining poor. Key words: Poverty, differentiated factors, transition, Benin.
本研究试图确定贝宁家庭向贫困过渡的差异因素。这项调查是对6424户家庭进行的,这些家庭构成了家庭生活条件综合模块化调查的数据。使用了Stata 12的描述性分析和计量经济学建模。从这项研究的结果来看,棉田和稻田中家庭的地理位置似乎增加了他们摆脱贫困的机会。这反映了良好的农业季节对家庭生活水平的积极影响。增加家庭规模会增加家庭进入或继续贫困的风险。关键词:贫困、差异化因素、转型、贝宁。
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引用次数: 2
Econometric analysis of consumer preferences and willingness-to-pay for organic tomatoes in Palestine: Choice experiment method 巴勒斯坦消费者对有机番茄的偏好和支付意愿的计量经济学分析:选择实验方法
Pub Date : 2019-04-30 DOI: 10.5897/JDAE2018.1024
I. Awad, Hasan Abu Lateefeh, A. Hallam, Mahmoud El-Jafari
This study aimed to examine consumers’ willingness to pay a premium price for several environmental attributes of organic tomato to increase both producer production and consumer health in Palestine. The paper adopts the choice experiment method using the econometric analysis of the random utility model. The research questions of this study focus on awareness of the importance of ensuring / securing the environment, how many households in the West Bank purchase organic tomatoes, reasons for which households may be willing or not willing to pay more for organic tomatoes, and the main socio-economic variables that affect the households willingness to pay for organic tomatoes when making organic tomatoes choices. The empirical results show that organic tomatoes are preferred to conventional ones because of health claims by respondents so that we conclude that respondents are willing to pay more for organic tomatoes compared to conventional ones. Additionally, consumers prefer organic products because of health and environmental benefits. Some policy measures might further promote the consumption of organic products. These include creating awareness of the relevance of consuming organic products through effective marketing and educational campaigns. However, there are about 500 organic farms in Palestine with a total area of 1’0000 square meters mainly under fruit, almond, olives and dates. According to the Palestinian Agricultural Relief Committee, organic pasturelands are not found because of the Israeli control (German Development Agency GTZ) and according to the ministry of agriculture in Palestine, there are 24 organic olive farms with a total area of 18885 square meters. Key words: Econometric Models, Choice Experiment Method, Mixed Logit Model, Palestine, Willingness to Pay.
这项研究旨在检验消费者是否愿意为有机番茄的几种环境特性支付溢价,以提高巴勒斯坦的生产者产量和消费者健康。本文采用随机效用模型的计量经济学分析的选择实验方法。这项研究的研究问题集中在对确保/保护环境的重要性的认识,西岸有多少家庭购买有机番茄,家庭可能愿意或不愿意为有机番茄支付更多费用的原因,以及影响家庭在选择有机番茄时购买有机番茄意愿的主要社会经济变量。实证结果表明,由于受访者的健康声明,有机番茄比传统番茄更受欢迎,因此我们得出结论,与传统番茄相比,受访者愿意为有机番茄支付更多的费用。此外,消费者更喜欢有机产品,因为它对健康和环境有益。一些政策措施可能会进一步促进有机产品的消费。其中包括通过有效的营销和教育活动,提高人们对有机产品消费相关性的认识。然而,巴勒斯坦大约有500个有机农场,总面积为1000万平方米,主要种植水果、杏仁、橄榄和大枣。根据巴勒斯坦农业救济委员会的说法,由于以色列的控制(德国开发署GTZ),没有发现有机牧场。根据巴勒斯坦农业部的说法,有24个有机橄榄农场,总面积为18885平方米。关键词:计量经济学模型,选择实验方法,混合Logit模型,巴勒斯坦,支付意愿。
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引用次数: 2
The mobility of intergenerational income for rural residents: The case of China 农村居民代际收入的流动性:以中国为例
Pub Date : 2019-04-30 DOI: 10.5897/JDAE2018.1011
Jie Chen, Ting Li
Based on the data of China Health and Nutrition Survey (CHNS) from 1989 to 2015, this paper analyzes the mobility and transmission mechanism of rural residents' intergenerational income. The OLS estimation of father and son yields a value of 0.549. The results of quantile regressions show that in rural China, the intergenerational income elasticity (IGE) is higher at the high end but lower at the low end. The human capital investment represented by the schooling years of the children is indeed an important factor explaining the intergenerational income mobility in the rural, and its contribution rate is 26.6%, much higher than the contribution of occupation. Further, the decomposition results indicate that education plays a more important role both at the low end and the high end, while occupation plays a more important role at the media quantile. Key words: Rural resident, intergenerational income mobility, transmission mechanism.
基于1989 - 2015年中国健康与营养调查(CHNS)数据,分析农村居民代际收入的流动性及其传导机制。父亲和儿子的OLS估计值为0.549。分位数回归结果表明,中国农村的代际收入弹性(IGE)在高端较高,而在低端较低。以子女受教育年限为代表的人力资本投资确实是解释农村代际收入流动的重要因素,其贡献率为26.6%,远高于职业的贡献。此外,分解结果表明,教育在低端和高端都起着更重要的作用,而职业在媒体分位数上起着更重要的作用。关键词:农村居民;代际收入流动;传导机制。
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引用次数: 0
Transportation infrastructure of Pakistans agricultural export 巴基斯坦农产品出口的运输基础设施
Pub Date : 2019-04-30 DOI: 10.5897/JDAE2019.1053
Nazia Tabasam, N. Ismail
Pakistan has the highest potential for agri-business development and global marketing. This study responded to standing views about the importance of infrastructure for agricultural trade in Pakistan. It raises the concern to investigate the basic trade facilitation for the transportation of agricultural commodities. This research focuses on transport infrastructure being basic distribution drives. A gravity model is used for panel analysis of twenty countries for the period 2005 to 2015, to find the push and pull factors that contribute to agriculture exports of Pakistan. Fixed effects or random effects technique is employed based on the Hausman’s test to investigate the effect of transport infrastructure (ports, air and road) on agricultural exports of Pakistan. Guided by results, it infers that improved ports facilitation can promote the agriculture sector of Pakistan as majority of trade activities are performed through ports because of their cost-effectiveness. Likewise, air network affects agricultural exports positively owing to the reduced time it takes for the air cargo to reach the destination country. Improved connectivity through roads is required to speed up the process across the regions effectively. Key words: Infrastructure, Pakistan, agriculture exports, gravity model, panel analysis.
巴基斯坦在农业企业发展和全球营销方面潜力最大。这项研究回应了关于基础设施对巴基斯坦农业贸易重要性的长期观点。对农产品运输的基本贸易便利化问题的调查引起了人们的关注。本研究的重点是运输基础设施作为基本的分配驱动。利用引力模型对2005年至2015年20个国家的面板分析,找出促进巴基斯坦农业出口的推拉因素。基于Hausman检验,采用固定效应或随机效应技术,考察了运输基础设施(港口、航空和公路)对巴基斯坦农产品出口的影响。在结果的指导下,它推断改善港口便利化可以促进巴基斯坦的农业部门,因为大多数贸易活动都是通过港口进行的,因为它们具有成本效益。同样,航空网络对农产品出口产生积极影响,因为航空货物到达目的地国家所需的时间缩短了。需要通过改善道路连通性来有效加快各地区之间的进程。关键词:基础设施,巴基斯坦,农产品出口,重力模型,面板分析。
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引用次数: 1
Viable alternatives to cotton-wheat crop rotation for semi-arid climatic conditions 半干旱气候条件下棉花-小麦轮作的可行替代品
Pub Date : 2019-03-31 DOI: 10.5897/JDAE2018.1023
Hafiz Qamar Zia Ali, F. A. Choudhary, S. Hayat, Rashid Iqbal, T. Khaliq, Ashfaq Ahmad
A study was conducted in the research area of Agronomy Department, University of Agriculture, Faisalabad during 2014-2015 to evaluate a sustainable and economical wheat-based rotation system under agro-climatic conditions of Faisalabad, Pakistan. Guar, maize, mash bean, mung bean, soybean, millet and some fodders (maize, millet and sorghum) were grown in Kharif season while wheat was the main crop in Rabi season. Wheat-fodder millet-grain maize gave the highest net benefits of Rs. 272062 ha-1 but exhausted the soil¬. The maximum value of BCR (2.25:1) was achieved in the same rotation that is, wheat-fodder millet-grain maize followed by wheat-fodder maize-mash bean with BCR of 1.86:1. Keeping in view the soil fertility plus economy, the wheat-fodder maize-mash bean cropping system is not only economical for small landholders but also improve soil fertility status as compare to others. Key words: Crop rotations, cropping patterns, economics, semi-arid and subtropical climate.
2014-2015年,在巴基斯坦费萨拉巴德农业大学农学系研究区开展了一项以小麦为基础的可持续经济轮作制度在农业气候条件下的研究。瓜尔豆、玉米、土豆泥、绿豆、大豆、小米和一些饲料(玉米、小米和高粱)在Kharif季节种植,而小麦是Rabi季节的主要作物。小麦-饲料型谷粒玉米的净效益最高,为272062卢比/公顷,但耗竭土壤养分。同一轮作下BCR最大(2.25:1),即小麦-饲料-谷粒玉米次之,小麦-饲料-玉米-豆粕豆BCR为1.86:1。从土壤肥力和经济的角度来看,小麦-饲料-玉米-豆粕种植制度不仅对小土地所有者来说是经济的,而且与其他种植制度相比,还能改善土壤肥力状况。关键词:轮作,种植模式,经济,半干旱亚热带气候。
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引用次数: 1
Determinants of khat chewing among urban households of Wolkite Town, Gurage Zone, Ethiopia 埃塞俄比亚Gurage区Wolkite镇城市家庭咀嚼卡塔叶的决定因素
Pub Date : 2019-03-31 DOI: 10.5897/JDAE2018.1032
Yonnas Addis, C. Adamu, Dubale Abate, Habtamu Mossie
Khat is the second largest export item with great economic value in Ethiopia, but  the ongoing increased number of chewers in the country indirectly affects economic productivity by decreasing work-hours, household’s economic production, diversion of money to buy khat, absenteeism from work and unemployment. The study aimed at analyzing the status of khat consumption and identifying the determinants of consumption level of khat in Wolkite town of Ethiopia. Primary and secondary data sources were used to obtain relevant data required for this study. A total of 110 sample respondents were used to collect primary data. Double hurdle model was employed to identify the determinants of khat consumption. The Probit part of the model result revealed that age of respondents, religion, educational level, peer- influence and perceived benefit of khat determine consumption decision as expected. Results from truncated part of Double hurdle showed employment status, perceived benefit, education level, khat price and work environment susceptibility determine the level of khat consumption in the study area. It is to recommended to strengthen the provision of formal education, encourage youths’ knowledge through different training and experience sharing, facilitate a program to provide especial education on socio- economic and health consequences of khat chewing to primary, secondary, preparatory and university students, reduce unemployment through providing option job opportunities, strengthen the provision of a choice of sport station and facilities to the society, and enhance safe working environment for khat chewing to be done by required stakeholders. Key words: Consumption, double hurdle model, Khat, Wolkite.
卡塔叶是埃塞俄比亚第二大出口商品,具有巨大的经济价值,但该国咀嚼者数量的持续增加通过减少工作时间、家庭经济生产、挪用资金购买卡塔叶、旷工和失业间接影响了经济生产力。本研究旨在分析埃塞俄比亚Wolkite镇卡塔叶的消费状况,并确定卡塔叶消费水平的决定因素。主要和次要数据来源用于获得本研究所需的相关数据。共使用了110个样本受访者来收集初步数据。采用双栏模型来确定卡塔叶消费的决定因素。模型结果的Probit部分表明,受访者的年龄、宗教、教育水平、同伴影响和卡塔叶的感知利益决定了预期的消费决策。双栏截断部分的结果表明,就业状况、感知效益、教育水平、卡塔叶价格和工作环境易感性决定了研究区域的卡塔叶消费水平。建议加强正规教育的提供,通过不同的培训和经验分享鼓励年轻人的知识,促进一项计划,向小学、中学、预科和大学学生提供关于咀嚼卡塔叶的社会经济和健康后果的特别教育,通过提供可选择的工作机会减少失业,加强向社会提供可供选择的运动站和设施,并为所需利益相关者咀嚼卡塔叶提供安全的工作环境。关键词:消费,双栏模式,卡特,沃尔凯特。
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引用次数: 1
Adoption of cocoa input technologies under agricultural transformation agenda among women cocoa farmers in Ile-Ife, Osun State 奥孙州Ile Ife女可可农在农业转型议程下采用可可投入技术
Pub Date : 2019-03-31 DOI: 10.5897/JDAE2018.0972
O. F. Adesiyan, A. Adesiyan, M. Agbonlahor
Majority of women cocoa farmers in Ile-Ife are poor and are often excluded from beneficial programs and trainings that can improve their welfare. The study analyzed the effect of public agricultural transformation programme on women farmers. Specifically, the critical issue of access to, and adoption of productivity enhancing input are analyzed. Data for the analyses were drawn from women farmers in cocoa (cash crop) production in rural Nigeria. A Multistage sampling technique was used to select 70% of the women cocoa farmers (80) who were farm owners and solely responsible for farm production decision. The data were analyzed using Tobit regression technique. The results showed that marital status of respondents and perception of increased income were significant and positive at 5% while number of visits by extension workers was also positively significant at 10%. The level of education, number of children and farming experience had negative and significant impacts on adoption of ATA policy. As farming experience and the number of children of each woman increase, the level of adoption of ATA program would decrease. The study concludes that most women farmers lack relevant information on the benefits and targets of public agricultural development programme. This greatly limits their ability to participate and benefit from such. There is a need to review the public agricultural information transmission channel.  Key words: Women, cocoa, adoption, agricultural transformation agenda.
Ile Ife的大多数女可可农都很贫穷,经常被排除在可以改善她们福利的有益项目和培训之外。该研究分析了公共农业转型计划对女农民的影响。具体而言,分析了获得和采用提高生产力投入的关键问题。分析数据来自尼日利亚农村从事可可(经济作物)生产的女农民。采用多阶段抽样技术选择了70%的女性可可种植者(80人),她们是农场所有者,全权负责农场生产决策。使用Tobit回归技术对数据进行分析。结果显示,受访者的婚姻状况和对收入增加的感知显著且积极,为5%,而推广工作者的访问次数也显著,为10%。教育水平、儿童数量和农业经验对ATA政策的采用产生了负面和重大影响。随着农业经验的增加和每个妇女的子女数量的增加,ATA计划的采用率将下降。研究得出的结论是,大多数女农民缺乏关于公共农业发展方案的好处和目标的相关信息。这大大限制了他们参与并从中受益的能力。有必要对公共农业信息传输渠道进行审查。关键词:妇女、可可、收养、农业转型议程。
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引用次数: 3
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Journal of development and agricultural economics
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