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   29457篇
  免费   302篇
财政金融   4938篇
工业经济   1695篇
计划管理   4564篇
经济学   6505篇
综合类   572篇
运输经济   76篇
旅游经济   217篇
贸易经济   6368篇
农业经济   580篇
经济概况   3605篇
信息产业经济   45篇
邮电经济   594篇
  2020年   128篇
  2019年   191篇
  2018年   2565篇
  2017年   2339篇
  2016年   1500篇
  2015年   259篇
  2014年   356篇
  2013年   1252篇
  2012年   799篇
  2011年   2347篇
  2010年   2112篇
  2009年   1826篇
  2008年   1845篇
  2007年   2154篇
  2006年   332篇
  2005年   621篇
  2004年   686篇
  2003年   822篇
  2002年   487篇
  2001年   283篇
  2000年   277篇
  1999年   251篇
  1998年   243篇
  1997年   202篇
  1996年   210篇
  1995年   182篇
  1994年   181篇
  1993年   214篇
  1992年   191篇
  1991年   191篇
  1990年   160篇
  1989年   171篇
  1988年   150篇
  1987年   141篇
  1986年   151篇
  1985年   249篇
  1984年   242篇
  1983年   216篇
  1982年   200篇
  1981年   190篇
  1980年   202篇
  1979年   197篇
  1978年   161篇
  1977年   175篇
  1976年   144篇
  1975年   134篇
  1974年   125篇
  1973年   128篇
  1971年   93篇
  1970年   94篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
971.
From both theoretical and policy perspectives, it is important to understand if financial speculation contributes to the boom/bust in oil prices during 2003–2008. In this paper, we disentangle the effects of financial speculation from those of economic fundamentals by focusing on exogenous changes of financial speculation in oil markets identified by changes in financial investor sentiment. Furthermore, we focus on a quasi-experiment setting, and investigate both sentiment-driven overvaluation of oil prices and subsequent mispricing correction. Our findings suggest that financial speculation might have contributed to the 2003–2008 boom/bust in oil prices.  相似文献   
972.
The model misspecification effects on the maximum likelihood estimator are studied when a biased sample is treated as a random one as well as when a random sample is treated as a biased one. The relation between the existence of a consistent estimator under model misspecification and the completeness of the distribution is also considered. The cases of the weight invariant distribution and the scale parameter distribution are examined and finally an example is presented to illustrate the results.  相似文献   
973.
We analyze the effect of the receipt of remittances on the education and health of children in Kyrgyzstan during a volatile period of their recent history, 2005–2009. The country experienced revolution in 2005 and the global financial crisis beginning in 2008. Both events impact human capital investment, and the changes vary by region of the country. We use fixed effects estimation and fixed effects, instrumental variables estimation to isolate the effects of remittances and other events on human capital. We find that boys aged 14–18 in remittances’ receiving households are less likely to be enrolled in school than other children. We also find that girls in remittances’ receiving households are more likely to be malnourished (thin). Both effects are relatively small. Remittances do not improve the human capital of children left behind. However, we do find an overall positive improvement in school enrollment among young children between 2005 and 2009 but a negative trend in enrollment among older boys and girls. Nutrition improves over time. Regional differences are apparent in these trends in nutrition and education.  相似文献   
974.
975.
A wide difference of opinion exists about the content and composition of emotions. Advertising may influence an audience and their buying decisions about products and services. The objective of this study is to better conceptualize how women emotionally respond to emotional advertisements (EAs). The variant views are integrated into an ACE model, composed of subordinate levels of emotions (E), celebrity endorsements (C), and appeal drivers (A). This empirical study examines women’s emotional response using data from 240 Chinese women respondents. The study participants were invited to develop ACE mix based advertisements and fill out questionnaires. PLS-SEM analysis, a novel approach in ACE advertisement development and its applicability to consumer behavior, was used. The results show that showbiz celebrities expressing the emotion of happiness with music and color make the most effective ACE mix to influence the consumption behavior of women. The results are significantly mediated by attention levels and are widely applicable in the burgeoning advertising industry. The study also calls for further research with different ACE mixes in different contexts and on different audiences. It also opens doors for policy making and an appropriate understanding of women’s consumption behavior in the Chinese context.  相似文献   
976.
Trust is essential for the success of change, but transformational change challenges trust. This paper analyses how trust dynamics develop over time in two Danish manufacturing firms affected by major change programmes. The results show that change creates uncertainty among employees, thereby provoking intense scrutiny of management intentions and a tendency to make interpretations that exaggerate management intentions—with the end result of reduced trust. Management then react similarly with negative interpretations of employee reactions, creating a vicious cycle of reduced trust. The paper proposes a model for how change and trust interact and suggests a managerial strategy for trust repair: Strong management actions that symbolise integrity, competence and benevolence may counteract reduced trust, but if low trust turns into distrust, the result may be a deadlock that both parties find difficult to break.  相似文献   
977.
978.
Voluntary certifications, such as Forestry Stewardship Council (FSC) in the forestry sector, are used to manage sustainable and socially responsible practices in firms. Even though the certifications are based on standards, it has been reported that adopting firms are nothing but a homogeneous cohort of adopters and in fact differ in their approaches to the certification. In this paper, we conceptualize firms’ approach to certification and link the approaches to various aspects of certification. Using an inductive approach and deriving our data from multiple case studies from forestry FSC certification, we argue that firms’ approach to certification is explained by their development of absorptive capacity, alignment of their organizational routines and their engagement in negotiations with FSC. We also argue that these approaches affect firm’s benefits from certification, their level of adherence to the requirements of the certification and their likelihood to withdraw from the certification. We discuss our findings in view of the literature on absorptive capacity, institutional literature and the literature on collective action and also discuss the implications of the study to voluntary certification literature in general.  相似文献   
979.
This study adopts a new approach, the multi-choice goal programming (MCGP), to evaluate houses in order to help homebuyers to find better house based on the residential preferences. According to the function of MCGP, homebuyers can set multiple housing goals with multiple aspiration levels. This increases the flexibility to find a suitable house. Compared with other classical methods such as checklist and analytic hierarchy process, MCGP is more efficient, especially while considering a lot of housing criteria and house alternatives. In order to demonstrate the usefulness of MCGP decision aid for housing selection, a real case study is then provided. Furthermore, ten volunteers are invited to participate in the empirical experiment. The results also validate the effectiveness and efficiency of MCGP decision aid.  相似文献   
980.
Using process tracing, this paper charts the history of the changes in the EU’s revenue since 1970, including package deals and the unforeseen consequences of change, comparing the positions of the Council to those of the European Commission and European Parliament. Those revenue decisions allowed European integration to proceed though without a fully autonomous budget as Member States became more careful to calculate their net benefits or costs in relation to the budget. In December 2013, the European Union’s institutions established a High Level Group to recommend changes to the revenue base of the EU’s budget. This reported in January 2017, proposing to resolve the effect of sub-optimal revenue and budget decisions made by the European Union over many years, to reduce direct national contributions, to minimise the risk of unforeseen consequences, and to combine revenue flows with steering effects to discourage certain forms of economic behaviour in line with the wider policy agenda of the European Union.  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