首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   165篇
  免费   1篇
各国政治   4篇
世界政治   7篇
外交国际关系   99篇
法律   10篇
中国共产党   4篇
中国政治   9篇
政治理论   6篇
综合类   27篇
  2021年   1篇
  2020年   1篇
  2019年   10篇
  2018年   21篇
  2017年   27篇
  2016年   11篇
  2015年   15篇
  2014年   9篇
  2013年   13篇
  2012年   3篇
  2011年   4篇
  2010年   6篇
  2009年   7篇
  2008年   5篇
  2007年   6篇
  2006年   4篇
  2005年   7篇
  2004年   3篇
  2003年   6篇
  2002年   3篇
  2001年   4篇
排序方式: 共有166条查询结果,搜索用时 31 毫秒
21.
Concerns about the decline of rural agricultural communities have recently refocused on new economic opportunities available in regional food production. This article analyses three on-the-ground case studies of rural development projects in Tasmania, Australia that aimed to develop new regional food opportunities. It analyses these projects to identify how local food producers can create viable economic alternatives in rural settings. The projects illustrate that the existence of regional food assets alone is not enough to guarantee economic development success: rural producers need connections into relevant knowledge networks if they are to identify and respond to new agro-food market opportunities.  相似文献   
22.
While substantial literature is available on the determinants of small-scale farmers’ participation in collective action, and the welfare impacts of producing and/or marketing collectively, studies on the likely implications of organisational form on producers’ collective behaviour remain scant. This article attempts to address this knowledge gap by using an example of different forms of small-scale mushroom-producing groups in Swaziland. Given the importance of collective action in sub-Saharan Africa, the overall results of this article provide valuable insights into alternative means of coordinating commercial small-scale agricultural activities, which can improve producers’ ultimate benefits while reducing the likelihood of internal free-riding.  相似文献   
23.
This article describes a collaborative research for development project that used participatory methods to engage smallholder farmers in Uganda in post-harvest aflatoxin management. It is based primarily on qualitative research with peanut growers tracing ‘the path of the peanut’ through their hand-drawn maps and journal writing. By focusing on everyday life and including recipes and drawings, this research encouraged women's participation and emphasised women's roles. A unique partnership among universities, women's organisations, and farmers created an environment of mutual learning and produced a book documenting food preparation and other post-harvest practices as part of a study and capacity-building effort on peanuts and aflatoxins.  相似文献   
24.
This paper examines the social and gender politics of a women's urban garden project supported by the International Organisation of Migration, in Cap Haitien, Haiti. My study highlights how the development process created an unmonitored symbolic space where society's normalised gender processes reproduced broader social inequalities, which, in turn, prevented the project from meeting the women's practical and strategic goals. Then, I discuss how the ecohealth approach, as an alternative design framework, could make symbolic space visible to be critically engaged and analysed by participants, to account for gender process, and create an emancipatory activity.  相似文献   
25.
Using clues from transaction cost economics this note develops an intertemporal agricultural household model to explain the demand-side credit rationing from formal financial institutions in agrarian economies. The model employs ex-ante transaction costs, namely search cost and negotiation cost to explain this phenomenon. The model shows that with market failure an agricultural household's production decision is not separate from its consumption decision. This is when the policy analysis household approach, which includes simultaneous decision making in production and consumption side, becomes essential.  相似文献   
26.
This article aims to provide knowledge and practical guidance to managing and implementing within the framework of endogenous development. The paper gives a theoretical overview of endogenous development, linked to issues of globalisation and poverty, and ongoing work among European institutions and academics that suggest shifts in Europe from exogenous to endogenous development approaches. It then makes a case for a paradigm shift – an African alternative to modernisation and development, namely endogenous development – using experiences with two NGOs in Ghana and Zimbabwe to locate theory in practice. The paper concludes with some empirical pre-requisites for conducting endogenous development with rural communities.

This article is prompted by the requests of my students at the University for Development Studies, Ghana, for knowledge and information, and practical guidance to managing and implementing within the framework of endogenous development. I start by giving a theoretical overview of the concept of endogenous development and link it with current issues of globalisation and poverty. I briefly mention current work among European institutions and academics that suggest shifts in Europe from exogenous to endogenous development approaches. Encouraged by such developments, I then make a case for a paradigm shift – an African alternative to modernisation and development, endogenous development. I bring to light the experiences with endogenous development in two NGOs – CECIK (Ghana) and AZTREC (Zimbabwe) – in order to locate theory in practice (praxis). I conclude by providing some empirical prerequisites for conducting endogenous development with rural communities, which demonstrate one way of conducting experimentation with farmers within the context of endogenous development.  相似文献   
27.
This article investigates gender dimensions of decision-making on access to, and control over, productive assets for agricultural development in selected communities in Ghana. The men were more educated, resourced, and economically empowered than the women. This resulted in differential access to, and control over, resources by gender and a low level of female participation in decision-making. The study identified a land access gap by gender and crop acreage gap of up to 80% for women as compared to men. Challenges limiting women in agricultural production and processing include inadequate land access, inadequate capital, inefficient processing technologies, and unattractive markets.  相似文献   
28.
铜仁地区农业产业化发展中存在许多矛盾,因此,必须思考和处理好农业产业化发展规划,合理划分产业区域;以基地建设为中心,建立市场主体之间合作关系;培植龙头企业和知名品牌,增强市场竞争能力;建立以金融为中心的服务体系和城乡一体化制度等问题。  相似文献   
29.
The main objective of this paper is to model the production and supply response in Chinese agriculture, which includes not only the standard arguments like expected prices but also risk. We extend Lin's work [1991, 1992] by modelling supply response as a three-equation model. We fit our model to data for 28 Chinese provinces from 1970 to 1997 to determine whether national Chinese agricultural supply is price and price risk responsive. Further, we fit our model to data for North, Northeast, South and Southeast regions. Results from the three systems equations are compared to single equation estimations. At the national level, Chinese agriculture is found to be price and price risk responsive. The regional analyses suggest that significant regional differences exist. Unlike Lin, we do not find the household responsibility system (HRS) to be the dominant factor in increased yields in different regions of China.  相似文献   
30.
Efficient input supply and service delivery may call for a hub approach where all the necessary inputs and services are supplied in a coordinated manner, either by a single supplier or by several and separate entities in a given geographical location accessible to beneficiaries. Based on experience from Ada'a milk shed in central Ethiopia, this paper assesses the evolution of input supply and service provision in the dairy sub-sector, focusing on coordination and the degree of competition among different actors at different levels in the value chain over time. Data were collected from key value chain actors engaged in provision of input supply and output marketing services in Ada'a milk shed. The major lesson is that the development of coordinated input supply and service delivery by different business entities or under a single business entity may not emerge at once, but through a gradual evolution. This depends on the level of demand for the inputs and services as determined by the degree of demand for milk and milk products, and the economies of scale input suppliers and service providers could attain from the expansion of demands for these inputs and services. Moreover, at the early stage of a hub development, collective actions and integration of services and marketing within a business organisation could be the main strategy to attain efficiency. But, once the demand for inputs and services has grown, competition among different entities will lead to more efficient input supply and service delivery. In general, where there is an increasing demand for inputs and services, there is a faster development of input supply and service provision by private actors and collective actions in a more competitive way. Role of the public sector could change gradually from provision of inputs and services to coordination, capacity building, quality control, and regulation.

Évolution des plateformes d'approvisionnement en intrants et de services dans le développement du secteur de la production laitière dans la laiterie d'Ada'a, en Éthiopie

Pour une fourniture d'intrants et une prestation de services efficaces, il peut se révéler nécessaire de mettre en ?uvre une approche axée sur une plateforme dans le cadre de laquelle tous les intrants et services nécessaires sont fournis de manière coordonnée, soit par un fournisseur unique soit par plusieurs entités séparées, dans un lieu donné accessible aux bénéficiaires. Sur la base de l'expérience de la laiterie d'Ada'a, en Éthiopie, cet article évalue l'évolution de la fourniture d'intrants et de la prestation de services dans le sous-secteur laitier, en se concentrant sur la coordination et sur le degré de concurrence entre différents acteurs et à différents niveaux de la chaîne de valeur au fil du temps. Des données ont été recueillies auprès d'acteurs clés de la chaîne de valeur actifs dans la fourniture d'intrants et dans la prestation de services de commercialisation de la production dans la laiterie d'Ada'a. Le principal enseignement est que le développement d'une fourniture d'intrants et d'une prestation de services coordonnées par différentes entreprises ou dans le cadre d'une entité commerciale unique peut ne pas avoir lieu tout d'un coup, mais au fil d'une évolution progressive. Cela dépend du degré de demande concernant les intrants et les services, tel que déterminé par le degré de demande de lait et produits laitiers, et par les économies d'échelle que les fournisseurs d'intrants et les prestataires de services pourraient obtenir grâce à l'expansion de la demande de ces intrants et services. De plus, au stade initial de la mise en ?uvre d'une plateforme, les actions collectives et l'intégration des services et de la commercialisation dans une organisation commerciale pourraient constituer la principale stratégie pour arriver à l'efficacité. Mais, une fois que la demande en intrants et en services s'est accrue, la concurrence entre différentes entités engendrera une fourniture d'intrants et une prestation de services plus efficaces. En général, lorsqu'il y a une demande croissante d'intrants et de services, il se produit un développement plus rapide de la fourniture d'intrants et de la prestation de services par des acteurs privés dans une optique plus concurrentielle. Le rôle du secteur public pourrait évoluer progressivement, de la fourniture d'intrants et de services à un rôle de coordination, de renforcement des capacités, de contrôle de la qualité et de réglementation.

Evolución de la oferta de insumos y de los centros de servicios en el desarrollo de lácteos en la cuenca lechera de Ada en Etiopía

Para llevar a cabo de manera eficiente la oferta de insumos y la entrega de servicios puede requerirse un centro de servicios cuya ubicación sea accesible a los beneficiarios, a partir del cual los mismos sean suministrados de manera coordinada, ya sea a través de un proveedor único, o bien, a través de varios entes separados. Apoyándose en la experiencia de la cuenca lechera de Ada, localizada en el centro de Etiopía, el presente artículo valora la evolución de la oferta de insumos y de la entrega de servicios en el subsector de lácteos, centrándose en la coordinación y en el grado de competitividad mostrado durante varios años por distintos actores ubicados en diferentes estratos de la cadena de valor. La información fue recopilada de actores clave de la cadena de valor en la cuenca lechera de Ada, quienes proveen insumos y servicios de comercialización de productos. El aprendizaje más importante que ha dejado esta experiencia es que: el desarrollo de la oferta de insumos y de la entrega de servicios – realizadas de manera coordinada por distintas empresas o por una sola – puede no surgir inmediatamente, sino después de una lenta evolución. Ello depende del nivel de demanda de insumos o servicios que, a su vez, depende tanto de la demanda de leche y de productos lácteos como de las economías de escala que pudieran obtener sus proveedores a partir de la expansión de la demanda de estos productos. Asimismo, durante las etapas iniciales del desarrollo de un centro de servicios, las acciones colectivas, la integración de servicios y la comercialización centradas en una sola empresa, podrían constituir la estrategia más importante para mejorar la eficiencia. Sin embargo, una vez que la demanda de insumos y servicios haya crecido, la competencia entre distintas entidades producirá una oferta y una entrega de los mismos más eficiente. En general, en aquellos lugares en que exista una demanda creciente, habrá un desarrollo más rápido de la oferta de insumos y de la entrega de servicios por parte de los actores privados, además de acciones colectivas más competitivas. En consecuencia, el rol del sector público podría modificarse gradualmente, pasando de ser proveedor de insumos y servicios a ser la instancia que coordine, fortalezca capacidades y vigile el control de calidad y las normas.

Evolução dos centros de abastecimento de insumos e serviços no desenvolvimento do setor de laticínio da região produtora de leite de Ada'a, na Etiópia

Uma oferta eficiente de insumos e de serviços pode demandar um centro em que todos os insumos e serviços necessários sejam ofertados de maneira coordenada, seja através de um único fornecedor ou de várias entidades separadas em uma dada área geográfica acessível aos beneficiários. Com base na experiência da região produtora de leite de Ada'a situada na região central da Etiópia, este artigo avalia a evolução da oferta de insumos e de serviços no sub-setor de laticínios, concentrando-se na coordenação e grau de competição entre diferentes agentes em níveis diferentes da cadeia de valores no decorrer do tempo. Os dados foram coletados a partir de agentes-chave da cadeia de valores engajados na oferta de insumos e serviços de marketing na região produtora de leite de Ada'a. A principal lição é que o desenvolvimento da oferta coordenada de insumos e de serviços através de diferentes entidades empresariais ou através de uma única entidade empresarial pode não surgir de uma só vez, mas sim ter uma evolução gradual. Isto depende do nível de demanda dos insumos e serviços, que é determinado pelo grau de demanda de leite e de produtos lácteos, e as economias de escala que os fornecedores de insumos e de serviços podem obter a partir da expansão de demandas por estes insumos e serviços. Além disto, na fase inicial do desenvolvimento de um centro, ações coletivas e integração de serviços e marketing dentro de uma organização empresarial podem ser a estratégia principal para se obter eficiência. Porém, após a demanda por insumos e serviços ter crescido, a competição entre entidades diferentes levará a uma oferta de insumos e de serviço mais eficiente. Em geral, quando há uma demanda crescente por insumos e serviços, há um desenvolvimento mais rápido na oferta de insumos e serviços por agentes privados e ações coletivas mais competitivas. O papel do setor público poderia mudar gradualmente da oferta de insumos e serviços para a coordenação, capacitação, controle de qualidade e regulação.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号