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   33102篇
  免费   987篇
  国内免费   2篇
财政金融   6048篇
工业经济   2355篇
计划管理   5754篇
经济学   7524篇
综合类   351篇
运输经济   281篇
旅游经济   520篇
贸易经济   6265篇
农业经济   1404篇
经济概况   3341篇
信息产业经济   7篇
邮电经济   241篇
  2023年   180篇
  2021年   255篇
  2020年   435篇
  2019年   680篇
  2018年   844篇
  2017年   890篇
  2016年   861篇
  2015年   608篇
  2014年   923篇
  2013年   3569篇
  2012年   1227篇
  2011年   1261篇
  2010年   1125篇
  2009年   1229篇
  2008年   1138篇
  2007年   982篇
  2006年   935篇
  2005年   901篇
  2004年   731篇
  2003年   770篇
  2002年   712篇
  2001年   729篇
  2000年   663篇
  1999年   602篇
  1998年   626篇
  1997年   589篇
  1996年   565篇
  1995年   490篇
  1994年   503篇
  1993年   486篇
  1992年   480篇
  1991年   476篇
  1990年   427篇
  1989年   336篇
  1988年   340篇
  1987年   348篇
  1986年   322篇
  1985年   485篇
  1984年   453篇
  1983年   425篇
  1982年   384篇
  1981年   358篇
  1980年   369篇
  1979年   346篇
  1978年   294篇
  1977年   254篇
  1976年   251篇
  1975年   200篇
  1974年   192篇
  1973年   183篇
排序方式: 共有10000条查询结果,搜索用时 906 毫秒
961.
A growing literature in economics seeks to estimate the costs of violence against women by examining, for example, its impact on the health outcomes of their children. However, it is difficult to assign a causal interpretation to these nonexperimental studies due to the presence of unobservable characteristics affecting violence and health outcomes simultaneously. The lack of credible instrumental variables applicable in several countries further limits our knowledge. I address this gap by using new partial identification methods to estimate the relative size of the unobservables needed to eliminate the estimated effects in nonexperimental studies. I also expand the external validity of the analysis by using data from five standardized nationally representative household surveys in Latin America. Consistent with previous studies, cross-sectional estimates show large negative associations between violence against women and an array of child health outcomes. However, when accounting for omitted variable bias, at best, two-thirds of the estimates remain robust and they are concentrated on the outcomes with the largest cross-sectional estimated impacts.  相似文献   
962.

This paper examines the spillover effects and the causality between inflation, output growth and its uncertainties for India. Using monthly data for the period from April 1980 to April 2011, we estimated a bi-variate GARCH in mean with BEKK representations. This study differs from the earlier works where the parameters in the BEKK representations are estimated individually and the inferences are drawn on the basis of the individual lagged variance, covariance, and error terms from the respective equations. The empirical evidence suggests that inflation uncertainty seems to have significant negative impact on output growth and positive impact on output uncertainty and there is a positive influence of output uncertainty on the inflation. More importantly, there are spillovers and volatility transmission effects between the macroeconomic uncertainties where the volatility in output growth is significantly influenced by the shocks and volatility in inflation.

  相似文献   
963.
964.
The paper provides an overview of current legal issues with regard to the environmental damage insurance, which exists in Germany since 2007. At the center of the observation are limitations of coverage, in particular the requirement of a malfunction of the business operations, the exclusion of qualitative risk changes and the cost deduction clause. In addition, the article deals with some issues of interpretation as well as of delimitation with regard to further insurance policies. By way of introduction the basics of the German Environmental Damage Act (USchadG) and its underlying EU Directive are shown. Finally, the authors discuss the question whether the environmental damage insurance should be configured as an obligatory insurance in the future.  相似文献   
965.
Despite the rapid growth of Internet banking (IB), customers in developing countries still hesitate to adopt this technology and its use in the Middle East remains low. This study aims to identify and examine the factors that predict behavioural intention and adoption of IB in Jordan. Four factors – hedonic motivation, habit, self-efficacy and trust – are proposed in a conceptual model. Data was collected by means of a survey with bank customers in Jordan. Structural equation modelling (SEM) was used to analyse the data. The results strongly supported the conceptual model. Further, hedonic motivation, habit, self-efficacy and trust were all confirmed to have a significant influence on behavioural intention. Trust was found to be strongly predicted by both hedonic motivation and self-efficacy. This study provides both academics and practitioners with an insight into the factors that can be used to encourage customer adoption of IB specifically in a Middle East context.  相似文献   
966.
Using design and communication principles, this study uses a content analysis design to evaluate all active blogs from the 2011 Fortune 500 list (n = 125). The results indicate that corporate America has only modestly incorporated the dialogic principles into their blogs. Current corporate blogs are well-designed as far as making them searchable and easy to navigate; however, the blogs are mostly being used to provide information in a one-way manner rather than creating an open dialogue with consumers. While blogging can enhance relationships with stakeholders, corporate communicators must strive to develop legitimate conversations with their blog readers.  相似文献   
967.
The goal of this paper is to analyze the impact of annual earnings announcements on the market through the order flow data in addition to the usual transaction data. In this respect, examining order flow data can potentially reveal valuable information that is not available from transaction data. In fact, the data allow us to test hypotheses about asymmetric information and investor behavior and to test if the behavior varies with investor sophistication. In addition, the paper tries to identify the determinants of the impact on a firm's value using assumptions about investor behavior.  相似文献   
968.
Financial theory holds that firms can control agency costs through the use of short-term and secured debt. We examine the relation between the use of secured debt and the incentive of the manager to increase the risk of the firm, as measured by vega. We find that firms utilize secured debt to a lesser extent when managerial volatility sensitivity is higher. Our results suggest that these same firms employ short-term debt as the primary tool to control risk-shifting. Managers with a high risk appetite avoid secured debt, but appear to do so without compromising the interests of the shareholders.  相似文献   
969.
Numerous innovative applications have been developed to utilise large quantity of fly ash generated at coal fired thermal power plants (TPPs) worldwide. However, this requires power plants to undertake the role of third-party innovation intermediaries, that is, commercialising technological innovations developed by others. As commercialising an innovation requires considerable resources, a well-considered selection and promotion are desired. The paper presents a strategic framework for commercialisation of fly ash innovations. Explanation for step-by-step implementation and generic pointers for strategy formulation for typical problems are suggested. The proposed framework is expected to assist coal-fired TPPs in formulating strategies to commercialise innovative utilisation of fly ash. The study contributes to scarcely addressed aspects of an open innovation paradigm, that is, challenges faced by third-party intermediaries.  相似文献   
970.
This study seeks to explain the differential effects of workforce flexibility on incremental and major new product development (NPD). Drawing on the resource‐based theory of the firm, human resource management research, and innovation management literature, the authors distinguish two types of workforce flexibility, functional and numerical, and hypothesize differential effects on NPD outcomes. A large‐scale sample of 284 Dutch firms across various manufacturing goods and business services industries serves to test these hypotheses. The results suggest that functional flexibility positively influences incremental NPD only, internal numerical flexibility negatively influences incremental NPD only, and external numerical flexibility positively influences major NPD only. Thus, differences between major and incremental NPD are grounded in the human resource flexibility of the firm. This complements research that found that such differences lie in critical development activities, learning processes, and capabilities. It also complements product innovation research on flexibility in NPD processes and on flexibility in organizational structures and routines. It extends the resource‐based theory of the firm suggesting that human resource flexibility is part of the dynamic capabilities that allow firms to reconfigure existing competencies. The conclusions imply that managers of manufacturing and service firms may use training and education and create a functional flexible workforce that can progressively enhance incremental NPD outcomes. They may want to avoid paying overtime, because such internal numerical flexibility hampers incremental NPD, but use fixed‐term contracts to expand external numerical flexibility to enhance major NPD.  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