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   27篇
  免费   1篇
财政金融   6篇
工业经济   2篇
计划管理   2篇
经济学   6篇
综合类   2篇
贸易经济   3篇
农业经济   6篇
经济概况   1篇
  2021年   1篇
  2018年   1篇
  2015年   2篇
  2014年   1篇
  2013年   2篇
  2012年   1篇
  2011年   3篇
  2010年   1篇
  2009年   1篇
  2008年   4篇
  2007年   1篇
  2006年   1篇
  2005年   1篇
  2003年   2篇
  2001年   1篇
  1998年   1篇
  1996年   2篇
  1994年   1篇
  1989年   1篇
排序方式: 共有28条查询结果,搜索用时 15 毫秒
1.
2.
We find the disparity between long-term and short-term analyst forecasted earnings growth is a robust predictor of future returns and long-term analyst forecast errors. After adjusting for industry characteristics, stocks whose long-term earnings growth forecasts are far above or far below their implied short-term forecasts for earnings growth have negative and positive subsequent risk-adjusted returns along with downward and upward revisions in long-term forecasted earnings growth, respectively. Additional results indicate that investor inattention toward firm-level changes in long-term earnings growth is responsible for these risk-adjusted returns.  相似文献   
3.
We review evidence on the impacts of CGIAR research published since 2000 in order to provide insight into how successfully the CGIAR Centers have been in pursuing the System’s core missions. Our review suggests that CGIAR research contributions in crop genetic improvement, pest management, natural resources management, and policy research have, in the aggregate, yielded strongly positive impacts relative to investment, and appear likely to continue doing so. Crop genetic improvement research stands out as having had the most profound documented positive impacts. Substantial evidence exists that other research areas within the CGIAR have had large beneficial impacts although often locally and nationally rather than internationally. However, the “right-time, right-place” nature of successful policy research and the relatively limited geographic scale of much natural resource management research often limits the overall scale of impacts of these programmatic thrusts vis-à-vis genetic improvement research. We conclude that given the evidence available, the CGIAR’s portfolio of research allocations has become overly skewed toward natural resource management and policy research over time. Hence, restoring somewhat the share of resources allocated to crop genetic improvement is warranted. In addition, the CGIAR needs to prioritize impact assessment of resource management and policy research to deepen its understanding of the social and environmental impacts of its work.  相似文献   
4.
One approach to trade liberalization is the zero-for-zero sectoral approach which involves agreements to eliminate export subsidies, import tariffs, and export taxes in a sector. This article provides an assessment of the impact of border trade liberalization on oilseeds and oilseed products trade. The analysis suggests that under all of the scenarios examined, North American oilseed crushers and oilseed producers gain from trade liberalization. The exact size and the distribution of these gains depends on the number of countries that participate in trade liberalization. The results suggest that the United States and Canada would gain from the adoption of the zero-for-zero proposal.  相似文献   
5.
This paper outlines a framework that links knowledge strategy and knowledge capabilities in a similar way as prior studies for the more generic concepts of strategy and capabilities. Existing theory in knowledge strategy is fragmented and focused on competitive positioning. We utilize concepts of good strategic management and the theory of the firm to place knowledge strategy on a more theoretically sound basis. This expands knowledge strategy beyond competitive positioning to include internal organization and the boundaries of the firm. This expanded view of knowledge strategy is compared to a conceptualization of knowledge capabilities that focuses on different capabilities for internal, collaborative and competitive situations. Using this perspective highlights the interconnection between knowledge capabilities and knowledge strategy—they are often jointly determined. It also provides a basis for integrating competence- and knowledge-based views of the firm in an empirically testable model. Suggestions for further research are proposed.  相似文献   
6.
Aims: To assess incremental charges of patients experiencing venous thromboembolisms (VTE) across various types of elective inpatient surgical procedures with administration of general anesthesia in the US.

Methods: The authors performed a retrospective study utilizing data from a nationwide hospital operational records database from July 2014 through June 2015 to compare a group of inpatients experiencing a VTE event post-operatively to a propensity score matched group of inpatients who did not experience a VTE. Patients included in the analysis had a hospital admission for an elective inpatient surgical procedure with the use of general anesthesia. Procedures of the heart, brain, lungs, and obstetrical procedures were excluded, as these procedures often require a scheduled ICU stay post-operatively. Outcomes examined included VTE events during hospitalization, length of stay, unscheduled ICU transfers, number of days spent in the ICU if transferred, 3- and 30-day re-admissions, and total hospital charges incurred.

Results: The study included 17,727 patients undergoing elective inpatient surgical procedures. Of these, 36 patients who experienced a VTE event were matched to 108 patients who did not. VTE events occurred in 0.2% of the study population, with most events occurring for patients undergoing total knee replacement. VTE patients had a mean total hospital charge of $60,814 vs $48,325 for non-VTE patients, resulting in a mean incremental charge of $11,979 (p?<?.05). Compared to non-VTE patients, VTE patients had longer length of stay (5.9 days vs 3.7 days, p?<?.001), experienced a higher rate of 3-day re-admissions (3 vs 0 patients) and 30-day re-admissions (7 vs 2 patients).

Conclusions: Patients undergoing elective inpatient surgical procedures with general anesthesia who had a VTE event during their primary hospitalization had a significantly longer length of stay and significantly higher total hospital charges than comparable patients without a VTE event.  相似文献   
7.
We explore the role of trade volume, trade direction, and the duration between trades in explaining price dynamics and volatility using an Asymmetric Autoregressive Conditional Duration model applied to intraday transactions data. Our results suggest that volume, direction and duration are important determinants of price dynamics, while duration is also an important determinant of volatility. However, the impact of volume and direction on volatility is marginal after controlling for duration, and the impact of volume on volatility appears to be confined to periods of infrequent trading.  相似文献   
8.
This study proposes and tests an integrative model to examine the relations among service quality, value, image, satisfaction, and loyalty in China. Analysis of survey data from 118 customers of a Chinese mobile communications company reveals that service quality directly influences both perceived value and image perceptions, that value and image influence satisfaction, that corporate image influences value, and that both customer satisfaction and value are significant determinants of loyalty. Thus, value has both a direct and indirect (through satisfaction) impact on customer loyalty. Other variables mediate the impact of both service quality and corporate image on customer loyalty.  相似文献   
9.
ABSTRACT: This article focuses on co‐operative movements’ role in developing new firms and sectors. In contrast to ‘developmental movements’ which secure legislative, policy, program, and promotional, financial, and technical assistance supports for co‐operative development campaigns, this paper investigates the problem of co‐operative ‘movement degeneration’ – why some movements’ developmental commitments gradually erode. The paper next investigates the project of ‘movement regeneration’ – how mature movements become reoriented toward movement goals, including fostering successful co‐operative formations. This discussion includes the role of institutional intermediaries, educational and cultural interventions, and mobilizing networks in regenerative movement action.  相似文献   
10.
Service experiences are characterized by emotions that help shape the value in use received by the customer. Negative emotion plays an important role in all of consumer psychology and all too often consumers experience some degree of negative emotion during a consumption experience. This research sheds light on how these negative shopping emotions experienced by men and women in a typical shopping environment affect value and relationships in the form of shopper behavior, commitment and share of wallet. A theoretical process is explained and modeled with a sample of mall shoppers. Results overall suggest that negative emotions affect the shopping experience more for women than for men in terms of perceived value and loyalty. In contrast, the behavior–commitment relationship is stronger for men.  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