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   173篇
  免费   20篇
财政金融   2篇
工业经济   24篇
计划管理   5篇
经济学   23篇
旅游经济   2篇
贸易经济   7篇
农业经济   79篇
经济概况   51篇
  2024年   1篇
  2023年   5篇
  2022年   1篇
  2021年   4篇
  2020年   18篇
  2019年   18篇
  2018年   7篇
  2017年   17篇
  2016年   12篇
  2015年   15篇
  2014年   14篇
  2013年   18篇
  2012年   7篇
  2011年   11篇
  2010年   13篇
  2009年   8篇
  2008年   7篇
  2007年   5篇
  2006年   3篇
  2005年   4篇
  2004年   2篇
  2000年   1篇
  1999年   1篇
  1983年   1篇
排序方式: 共有193条查询结果,搜索用时 125 毫秒
81.
This article conducts a series of list experiments to detect whether community conversations contribute to a change in thinking about harmful traditional practices in Ethiopia. While our findings are mixed, we provide evidence that community conversations are indeed a valuable instrument to induce a change in social values in order to empower women.  相似文献   
82.
Propensity score matching (PSM) is an increasingly popular method for evaluation studies in agricultural and development economics. However, statisticians and econometricians have stressed that results rely on untestable assumptions, and therefore, guidelines for researchers on how to improve credibility have been developed. We follow one of these guidelines with a data set analysed by other authors to evaluate the impact of Fair Trade certification on the income of coffee producers. We provide thereby a best practice example of how to evaluate the credibility of PSM estimates. We find that a thorough assessment of the assumptions made renders the data we use not suitable for a credible PSM estimation of the effects of treatment. We conclude that the debate about the impact of Fair Trade certification would greatly benefit from a detailed reporting of credibility checking.  相似文献   
83.
Empirical studies point to reduced tillage as a means to increase yields and reverse land degradation. A relatively neglected avenue of research concerns why farmers increase tillage frequencies. Using household-plot level panel data from the Nile Basin of Ethiopia, this article applies a random effects ordered probit endogenous switching regression model to empirically investigate the impact of weather events and other conditioning factors on farmers’ choice of tillage intensity and the effect of changing tillage frequencies on differences in farm returns. Results indicate that, while low frequency tillage is more likely in drier areas, plot-level shocks (such as pests and diseases) are key variables in the choice of high-frequency tillage. Adoption of a low-till approach leads to increasing farm returns in low-moisture areas but high-frequency tillage provides higher returns in high-rainfall areas. Understanding how farmers’ tillage options correlate with climatic conditions and farm economies is salient for developing effective adaptation and mitigation plans.  相似文献   
84.
As countries increasingly strive to transform their economies from agriculture‐based into a diversified one, land rental will become of greater importance. It will thus be critical to complement research on the efficiency of specific land rental arrangements such as sharecropping with an inquiry into the broader productivity impacts of the land rental market. Plot‐level data for a matched landlord–tenant sample in an environment where sharecropping dominates allow us to explore both issues. We find that pure output sharing leads to significantly lower levels of efficiency that can be attenuated by monitoring while the inefficiency disappears if inputs are shared as well. Rentals transfer land to more productive producers but realization of this productivity advantage is prevented by the inefficiency of contractual arrangements, suggesting changes that would prompt adoption of different contractual arrangements could have significant benefits.  相似文献   
85.
The objectives of this study arc to examine both the significance of the impact of farmers' perceptions regarding new technology for the adoption decision and how perceptions themselves are influenced by the decision to adopt new technology. The study is based on data from 96 wheat farms in the Moret and Jiru woreda (district) of Ethiopia. The probit approach is used to analyse the adoption decision, while the variables relevant to farmers' perceptions are modelled using the ordered probit methodology. A simultaneous equations model combining the probit and ordered probit approaches provides a useful approach to modelling the two-way relationship between perception and adoption. Variables such as farm size, farm income and soil type have a key role to play in the model. Perception is measured by eight different components and as there is a strong collinearity among these various measures, a principal components analysis is attempted to draw the best possible linear combination of variables.  相似文献   
86.
The increasing interest in on-farm conservation is driven by its diverse attractive features — its participatory nature and its flexible and dynamic features; its capacity to maintain not only crop diversity but the knowledge that evolves with it; and the chance it offers to link conservation with utilization and farmers' livelihoods. To implement this strategy on a sustainable basis, policy incentives are crucial. This paper argues that opportunity costs farmers face have a role to play to design sound policy incentives. Taking sorghum as an example, opportunity costs have been examined in this paper using data collected from 198 farmers in Eastern Ethiopia. The average opportunity costs suggest the size of the required policy incentives and they are the basis to estimate the national conservation costs for on-farm conservation. The regression analysis shows that opportunity costs increase with access to output markets and extension, output price, access to input supply, experience in growing improved varieties, and the relative importance of the crop. On the contrary, plot quality, input price, and oxen ownership are reducing the opportunity costs. The paper then concludes outlining the policy implications of the empirical findings to incentive design for on-farm conservation.  相似文献   
87.
Smallholder farmers in Sub‐Saharan Africa often mitigate production risks through cooperative membership: institutionalized arrangements where they pool resources and collectively manage production and marketing chains. Cooperative membership has a significant advantage: it cushions detrimental effects of external forces, placing a premium on a risk‐seeking attitude (experimenting and innovating), which can yield greater accumulation. However, cooperatives are self‐selective institutions: relatively better‐endowed farmers, who are usually less risk‐avoidant than poorer ones (a consequence of their broader material bases), tend to be overrepresented. These two realities complicate the causal assessment of the relationships between risk attitudes, farmers’ socioeconomic status, and cooperative membership that is essential to comprehend the role of cooperatives in local capital accumulation. To help resolve this thorny analytical problem, an experimental study was carried out in eastern Ethiopia—a risky production environment where cooperatives feature prominently and relatively affluent farmers exist alongside poorer ones. It unveils the working of specific path dependences: poorer cooperative members are less risk seeking than nonmembers, but at an interval much less than that observed for affluent farmers. For development policies, this suggests that a greater payoff can be expected from investing in farmers’ material bases than from further improving cooperative membership.  相似文献   
88.
Africa‐based research on gender and entrepreneurship is very limited. This study compares the characteristics and relative successes of men and women entrepreneurs in Ethiopia with a view of isolating the unique hurdles encountered by female entrepreneurs. While both genders in this sample were pulled, rather than pushed, toward entrepreneurship, women were more influenced by family factors. With regard to personality traits, men entrepreneurs in this study were generally more confident in their ability to succeed, whereas women exhibited higher fear of failure and external locus of control. Women entrepreneurs also reported lower business and entrepreneurial skills and relied more on government funding. Furthermore, male entrepreneurs outperformed females in terms of sales, employment growth, and profitability. The study identifies areas in which the skills and competencies of Ethiopian women entrepreneurs can be developed through targeted training programs to enable them to more clearly recognize entrepreneurial opportunities and achieve business growth. The findings of this study and the concrete suggestions it offers to strengthen the success of Ethiopian women entrepreneurs may be relevant to other African countries as well.  相似文献   
89.
Understanding the objectives, strategies and actions of the different actors that play a role in the implementation of rural development programmes is a key to explaining the latter's success and sustainability. Based on in-depth anthropological fieldwork and from an actor perspective this paper shows how the Rainwater Harvesting Pond Programme (RHPP) and the public work component of the Productive Safety Net Programme (PSNP) work out in practice in one district of the Tigray region in Ethiopia. Developers and farmers turn the two essentially unrelated rural development programmes into practically intertwined interventions, which leads to an undesirable set of outcomes. The RHPP's participants, who are conceived of as willing to improve, are favoured above other candidates for employment in the PSNP, which farmers compete for. Developers' and farmers' moves and countermoves result in targeting errors in the PSNP and in farmers massively constructing rainwater harvesting ponds, the large majority of which fail because farmers do not aspire to make them succeed, but merely see them as a stepping stone to employment in the PSNP. In addition both groups' perception of each other is affected. Our observations challenge prevailing interpretations of the effects of development interventions on Tigrayan people's livelihoods.  相似文献   
90.
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