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   597篇
  免费   13篇
财政金融   114篇
工业经济   42篇
计划管理   74篇
经济学   111篇
综合类   11篇
运输经济   8篇
旅游经济   38篇
贸易经济   151篇
农业经济   26篇
经济概况   35篇
  2023年   4篇
  2022年   4篇
  2021年   4篇
  2019年   20篇
  2018年   14篇
  2017年   15篇
  2016年   15篇
  2015年   13篇
  2014年   24篇
  2013年   70篇
  2012年   26篇
  2011年   25篇
  2010年   22篇
  2009年   15篇
  2008年   9篇
  2007年   15篇
  2006年   25篇
  2005年   20篇
  2004年   19篇
  2003年   9篇
  2002年   18篇
  2001年   13篇
  2000年   17篇
  1999年   12篇
  1998年   15篇
  1997年   15篇
  1996年   9篇
  1995年   8篇
  1994年   12篇
  1993年   12篇
  1992年   5篇
  1991年   6篇
  1990年   5篇
  1989年   7篇
  1988年   11篇
  1987年   8篇
  1986年   5篇
  1985年   7篇
  1984年   10篇
  1983年   5篇
  1982年   9篇
  1981年   4篇
  1980年   3篇
  1979年   2篇
  1978年   2篇
  1977年   3篇
  1975年   3篇
  1974年   3篇
  1973年   4篇
  1972年   3篇
排序方式: 共有610条查询结果,搜索用时 93 毫秒
21.
Many nations have undergone significant trade liberalization even as they have increased their use of contingent protection measures. This raises the question of whether some of the trade liberalization efforts, at times accomplished through painful reforms, have been undone through a substitution from tariffs to non‐tariff barriers. Among the new forms of protection, antidumping is the most relevant. This paper examines whether the use of antidumping is systematically influenced by the reduction of applied sectoral tariffs in a sample of 29 developing and six developed countries from 1991 through 2002. Evidence is found of a substitution effect only for a small set of heavy users of antidumping among developing countries. There is no similar statistically significant result for other developing countries or developed countries. Robust evidence is also found of retaliation and deflection effects as determinant of antidumping filings across all subsamples.  相似文献   
22.
23.
24.
The Sustainable Tourism Attitude Scale (SUS-TAS) has been used as a tool to gauge the sentiment of local residents toward sustainable tourism development. This scale has been validated in cross-cultural settings by several scholars. In a like manner, in order to validate this scale, data were collected in the Cape Verde islands (off the coast of Africa) and the results showed (1) a parsimonious version of the 21-item SUS-TAS that facilitates the process of data collection without compromising its robustness and psychometric properties, (2) a validated second-order factor model, confirming that the seven factors of SUS-TAS can be loaded in two broader dimensions named “perceived tourism impacts” and “expected tourism sustainability”, (3) a SUS-TAS second-order factor model with validity in predicting residents’ support for sustainable tourism development, (4) that SUS-TAS can be interpreted by seven individual factors and/or as a global factor as indicated by the hierarchical measurement model and predictive validity. Methodological and theoretical interpretations are discussed and future refinement and applications are also offered.  相似文献   
25.
Making as a design-centered learning activity has recently received significant attention in education. We use literacies—how individuals use representations to learn—to explore the STEM literacy practices of experienced designers and makers. Describing makers’ representational practices in STEM contexts can inform the design of literacy supports for young makers that can encourage their use of representations to connect STEM disciplines and design practices. We interviewed experienced makers to describe one literacy practice central to design: identifying, organizing, and integrating information. Makers enacted this practice within specific making processes—e.g., designing—with the purpose of sourcing and navigating information related to their chosen problems. The research supports efforts to bridge learning while making with learning in schools by positioning STEM literacies as central practices involved in the processes of designing and making.  相似文献   
26.
27.
ABSTRACT

The effects of gender on involvement in high-risk recreation have received limited research attention despite mounting evidence suggesting the learned interactions between people and places likely vary for men and women. The purpose of this study was to provide insights into how gender influenced the motivation-involvement relationship among whitewater recreationists on a Wild and Scenic River in California. Our results revealed the motivations of Risk, Escape, Learning, and Achievement/Stimulation positively influenced involvement in rafting activities. Although gender did not influence all dimensions of involvement, we found that identity expression varied between subgroups. Specifically, men were more likely to ascribe meaning to rafting than women because this activity allowed them to affirm and express their individual character. The implications emanating from this study advance theoretical understanding of the factors that influence enduring involvement and inform natural resource management decisions about maintaining the desired benefits of activities sought by nature-based recreationists.  相似文献   
28.
We determine the optimal investment strategy to minimize the probability of an individual’s lifetime ruin when the underlying model parameters are subject to a shock. Specifically, we consider two possibilities: (1) changes in the individual’s net consumption and mortality rate and (2) changes in the parameters of the financial market. We assume that these rates might change once at a random time. Changes in an individual’s net consumption and mortality rate occur when the individual experiences an accident or other unexpected life event, while changes in the financial market occur due to shifts in the economy or in the political climate. We apply perturbation analysis to approximate the probability of lifetime ruin and the corresponding optimal investment strategy for small changes in the model parameters and observe numerically that these approximations are reasonable ones, even when the changes are not small.  相似文献   
29.
Economic theory suggests that opening the capital account should allow a country to diversify away economic shocks, increase capital inflows, expand economic growth and efficiency as well as encourage governments to pursue good policies. The empirical evidence with regard to these theoretical predictions, however, are in some instances debatable. Many studies, for example, have reported mixed results as it relates to the impact of capital account integration on growth, exchange rates, trade and policy discipline. This paper provides a review of this literature as well as some recommendations for policymakers in relation to managing the process of removing capital controls.  相似文献   
30.
The serious leisure inventory and measure (SLIM) was tested with 348 chess players to confirm the factors, assess the effects of method bias, and propose a set of the best-performing items for the 18 factor SLIM. The 54-item SLIM demonstrated acceptable fit and reliability values. The effect of method bias was evidenced in the sample and explained one-third of the variance. Inspection of factor loadings, when controlling for method bias, yielded one best-performing item per factor. Findings indicate method bias continues to be problematic for self-report measures such as the SLIM.  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