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   1140篇
  免费   40篇
财政金融   270篇
工业经济   89篇
计划管理   189篇
经济学   176篇
综合类   8篇
运输经济   15篇
旅游经济   40篇
贸易经济   204篇
农业经济   63篇
经济概况   126篇
  2023年   8篇
  2021年   7篇
  2020年   18篇
  2019年   23篇
  2018年   29篇
  2017年   24篇
  2016年   29篇
  2015年   16篇
  2014年   19篇
  2013年   198篇
  2012年   22篇
  2011年   29篇
  2010年   34篇
  2009年   25篇
  2008年   36篇
  2007年   30篇
  2006年   25篇
  2005年   30篇
  2004年   30篇
  2003年   36篇
  2002年   31篇
  2001年   20篇
  2000年   31篇
  1999年   18篇
  1998年   27篇
  1997年   24篇
  1996年   13篇
  1995年   13篇
  1994年   19篇
  1993年   14篇
  1992年   14篇
  1991年   14篇
  1990年   16篇
  1989年   16篇
  1988年   9篇
  1987年   11篇
  1986年   18篇
  1985年   25篇
  1984年   17篇
  1983年   19篇
  1982年   7篇
  1981年   16篇
  1980年   12篇
  1979年   16篇
  1978年   9篇
  1977年   12篇
  1976年   11篇
  1975年   9篇
  1974年   7篇
  1972年   7篇
排序方式: 共有1180条查询结果,搜索用时 62 毫秒
41.
The case for promoting export‐oriented cash crops in Africa has generally been based on their direct potential contribution to agricultural productivity and small farmer incomes. A relatively neglected avenue of research concerns the synergistic effects that cash cropping can have on other household activities, including food production. The conventional view that cash crops compete with food crops for land and labour neglects the potential for cash crop schemes to make available inputs on credit, management training, and other resources that can contribute to food crop productivity, which might otherwise not be accessible to farmers if they did not participate in cash crop programs. This article builds on previous research by hypothesising key pathways by which cash crops may affect food crop activities and empirically measuring these effects using the case of cotton in Gokwe North District in Zimbabwe. Analysis is based on instrumental variable analysis of survey data on 430 rural households in 1996. Results indicate that—after controlling for household assets, education and locational differences—households engaging intensively in cotton production obtain higher grain yields than non‐cotton and marginal cotton producers. We also find evidence of regional spill‐over effects whereby commercialisation schemes induce second round investments in a particular area that provide benefits to all farmers in that region, regardless of whether they engage in that commercialisation scheme. The study suggests that the potential spill‐over benefits for food crops through participation in cash crop programs are important to consider in the development of strategies designed to intensify African food crop production.  相似文献   
42.
Children with developmental disabilities participate in more solitary, sedentary, and home-based leisure activities than active physical pursuits or community-based activities. Clinical experience suggests that children with less well-recognized developmental difficulties also have compromised leisure experiences; however, this has not been fully investigated. This study engaged 20 school-age children with developmental difficulties in a community-based circus program, designed in collaboration with occupational therapists. The program included activities such as trampolining, trapeze, and acrobatics. Semi-structured interviews with children and parents explored children's leisure experiences both at circus and more broadly. Qualitative content analysis revealed that friendships, having fun, and being physically active were highly valued aspects of leisure. The coaching style and “just right” level of challenge within programs were identified as central to children's engagement and sense of competence. Participating in a supported leisure program such as circus appeared to promote children's engagement in community leisure, at least in the short term.  相似文献   
43.
In 2015, the Federal Communications Commission (FCC) imposed common carriage regulation—so-called Title II requirements—on previously unregulated broadband Internet service providers. The regime shift was premised on the FCC’s findings that such rules had demonstrably yielded economic gains. This paper evaluates the FCC’s empirical arguments and finds them uncompelling. Adjustments for inflation or general economic trends eliminate the effects cited by the FCC. Moreover, contrary to the Commission’s assessment, mobile services and broadband markets have shown notable growth in response to deregulatory events that reduce Title II requirements.  相似文献   
44.
Real estate investment portfolios of financial institutions have seen dramatic changes over the last three decades or more. Historically such property investment decisions have been seen within a portfolio diversification paradigm that has sought to balance risk and return. This paper considers the role of the supply of assets in the determining and constraining the UK institutional portfolio. The supply of real estate assets not only expands during property booms but has also been transformed by a long term urban development cycle as cities adapt to cars and the ICT revolution that has brought new property forms. The research examines long term trends in investment change by disaggregating into ten property forms rather than the usual three land use sectors. It then assesses to what extent investment patterns can be explained in terms of portfolio theory, short term net returns of individual sectors or driven by the supply of real estate assets. It concludes that the supply of real assets is an overlooked explanation.  相似文献   
45.
Previous research indicates that consumers differ in their evaluation of and response to similar retail experiences. Reporting results from three studies, the current research proposes consumers’ regulatory focus intensity as one possible source of this variation. Study 1 examines how consumers’ regulatory focus intensity influences their in‐store behavioral intentions following good and bad shopping experiences. Study 2 illustrates how consumers’ regulatory focus intensity impacts their future loyalty intentions after satisfactory retail experiences. In Study 3, the researchers explore how retailers can employ regulatory framing in their communication messages to increase the future loyalty intentions of those chronically less loyal consumers. Lastly, theoretical and managerial implications as well as limitations of this research are discussed.  相似文献   
46.
Corporate bankruptcy prediction has attracted significant research attention from business academics, regulators and financial economists over the past five decades. However, much of this literature has relied on quite simplistic classifiers such as logistic regression and linear discriminant analysis (LDA). Based on a large sample of US corporate bankruptcies, we examine the predictive performance of 16 classifiers, ranging from the most restrictive classifiers (such as logit, probit and linear discriminant analysis) to more advanced techniques such as neural networks, support vector machines (SVMs) and “new age” statistical learning models including generalised boosting, AdaBoost and random forests. Consistent with the findings of Jones et al. ( 2015 ), we show that quite simple classifiers such as logit and LDA perform reasonably well in bankruptcy prediction. However, we recommend the use of “new age” classifiers in corporate bankruptcy modelling because: (1) they predict significantly better than all other classifiers on both the cross‐sectional and longitudinal test samples; (2) the models may have considerable practical appeal because they are relatively easy to estimate and implement (for instance, they require minimal researcher intervention for data preparation, variable selection and model architecture specification); and (3) while the underlying model structures can be very complex, we demonstrate that “new age” classifiers have a reasonably good level of interpretability through such metrics as relative variable importances (RVIs).  相似文献   
47.
Fundraisers play a vital role in the success of nonprofit organizations, yet relatively little is known about the experiences, motivations, and thought processes that inform their career choice and development. This exploratory, cross-comparative case study of 3 fundraisers addresses this gap in the literature by examining some formative influences on fundraisers' careers, their professional growth aspirations and opportunities, and how, if at all, they engage in personal philanthropy. Results suggest that fundraisers' aptitudes, skills, and abilities may influence their career choice more than a sense of connection to the nonprofit sector or organizational mission. Further, fundraisers seek opportunities to exercise leadership at the individual, organizational, and community levels. Additionally, their personal philanthropy and social embeddedness play integral roles in their professional development. Although not large enough for generalization, these results suggest the need to study fundraisers holistically, including their psychological development and social embeddedness over time. We argue for the need to move beyond traditional marketing and public relations perspectives to explain fundraising. Instead, future studies should adopt a service-dominant logic framing that considers fundraisers as part of a larger philanthropic ecosystem. We conclude with several questions to guide future studies toward this line of inquiry.  相似文献   
48.
49.
Ian Jones 《Leisure Studies》2013,32(4):283-298
Stebbins (1992) has suggested that the ‘profit hypothesis’, whereby the perceived benefits of taking part in an activity exceed the perceived costs, can be used to explain continued engagement in serious leisure activities. This argument, however, fails to explain the continued participation in such activities where the costs to the individual seem to exceed the rewards. This paper adopts a social identity perspective to identify and demonstrate the role of four compensatory behaviours – in-group favouritism, out-group derogation, unrealistic optimism, and voice – in ensuring continued participation in serious leisure. Such behaviours are described in the context of one particular serious leisure activity – that of football fandom – to explain why engagement in such an apparently unrewarding activity is maintained. A model of serious leisure participation is presented based upon these behaviours  相似文献   
50.
Companies increasingly seek solutions to the corporate/local dichotomies perceived to be a feature of more traditional approaches to managing across national boundaries. At the human resource level, the rhetoric of transnationalism emphasizes integration being achieved through 'soft' mechanisms, such as corporate culture devices, which encourage all managers to develop an international (for this read corporate) perspective on what they do. In theory, managerial staff are recruited and promoted on a 'best person for the job' basis and national identities are played down. Drawing upon evidence from three international hotel chains (one American, one French and one Swedish), this paper argues that there is a disjuncture between corporate culture devices which assume that they can transcend national origins and the issues of interest and identity which inform the activities and experiences of managers at unit level. The paper suggests that companies need to be aware of the danger of assuming that one can be trained to be 'one of the family'. Rather, we argue that local managers are potentially disadvantaged in terms of career progression as managers from the parent country utilize criteria of acceptability informed by processes of socialization which are more institutionally embedded and derived than has been assumed.  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