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   642篇
  免费   28篇
财政金融   161篇
工业经济   51篇
计划管理   154篇
经济学   103篇
综合类   3篇
运输经济   6篇
旅游经济   14篇
贸易经济   92篇
农业经济   31篇
经济概况   55篇
  2021年   6篇
  2020年   6篇
  2019年   12篇
  2018年   13篇
  2017年   21篇
  2016年   17篇
  2015年   14篇
  2014年   14篇
  2013年   77篇
  2012年   29篇
  2011年   25篇
  2010年   32篇
  2009年   19篇
  2008年   26篇
  2007年   17篇
  2006年   19篇
  2005年   12篇
  2004年   14篇
  2003年   20篇
  2002年   8篇
  2001年   15篇
  2000年   17篇
  1999年   17篇
  1998年   14篇
  1997年   9篇
  1996年   14篇
  1995年   10篇
  1994年   10篇
  1993年   7篇
  1992年   4篇
  1991年   11篇
  1989年   9篇
  1988年   9篇
  1987年   5篇
  1986年   5篇
  1984年   4篇
  1983年   4篇
  1982年   4篇
  1980年   6篇
  1979年   6篇
  1978年   5篇
  1977年   4篇
  1975年   5篇
  1958年   5篇
  1955年   6篇
  1954年   4篇
  1948年   5篇
  1947年   4篇
  1946年   3篇
  1945年   5篇
排序方式: 共有670条查询结果,搜索用时 0 毫秒
41.
Theories such as human capital theory, the metaphors of learning and the high involvement work paradigm all suggest that the quality of training and learning varies along a number of axes. This article shows how these theoretical insights have been translated into questions used in a UK survey of 6829 employees carried out in 2006. We find that the qualities of both the training experience and on-the-job learning are strongly associated with the extent and nature of employee involvement. This suggests that employee involvement is likely to play an important role in the process of upskilling the workforce, which has been accorded a central role in the economic strategies of many nation states as well as supra-national organizations such as the European Union.  相似文献   
42.
Objective: To provide an estimate of the annual number of super-refractory status epilepticus (SRSE) cases in the US and to evaluate utilization of hospital resources by these patients.

Methods: The Premier Hospital Database was utilized to estimate the number of SRSE cases based on hospital discharges during 2012. Discharges were classified as SRSE cases based on an algorithm using seizure-related International Classification of Diseases-9 (ICD-9) codes, Intensive Care Unit (ICU) length of stay (LOS), and treatment protocols (e.g. benzodiazepines, anti-epileptic drugs (AEDs), and ventilator use). Secondary analyses were conducted using more restrictive algorithms for SRSE.

Results: A total of 6,325 hospital discharges were classified as SRSE cases from a total of 5,300,000 hospital discharges. Applying a weighting based on hospital characteristics and 2012?US demographics, this projected to an estimated 41,156 cases of SRSE in the US during 2012, an estimated incidence rate of ~13/100,000 annually for SRSE in the US. Secondary analyses using stricter SRSE algorithms resulted in estimated incidence rates of ~11/100,000 and 8/100,000 annually. The mean LOS for SRSE hospitalizations was 16.5 days (median =11; interquartile range [IQR]?=?6–20), and the mean ICU LOS was 9.3 days (median =6; IQR =3–12). The mean cost of an SRSE hospitalization was $51,247 (median = $33,294; 95% CI = $49,634–$52,861).

Limitations: The analysis uses ICD-9 diagnostic codes and claims information, and there are inherent limitations in any methodology based on treatment protocol, which created challenges in distinguishing with complete accuracy between SRSE, RSE, and SE on the basis of care patterns in the database.

Conclusion: SRSE is associated with high mortality and morbidity, which place a high burden on healthcare resources. Projections based upon the findings of this study suggest an estimated 25,821–41,959 cases of SRSE may occur in the US each year, but more in-depth studies are required.  相似文献   
43.
This article presents new British evidence that suggests that cutting working hours at short notice is twice as prevalent as zero-hours contracts and triple the number of employees are very anxious about unexpected changes to their hours of work. The pay of these employees tends to be lower, work intensity higher, line management support weaker and the threat of dismissal and job loss greater. In addition, the well-being of these employees is lower and they are less committed to the organisations that employ them. However, the prevalence of insecure working hours is reduced by workplace level employee involvement exercised individually or through collective representation.  相似文献   
44.
The wealth distribution in the U.S. is more unequal than either the income or earnings distribution, a fact current models of saving behavior have difficulty explaining. Using Max Weber’s [Weber, M. (1905). The Protestant Ethic and the Spirit of Capitalism. Charles Scribners’ and Sons (1958 translated edition)] idea that individuals may have a ‘capitalist spirit’, I construct and simulate a model where individuals accumulate wealth for its own sake rather than as deferred consumption. Including capitalist spirit preferences in a simple life cycle model, with no other modifications, generates a skewness of wealth consistent with that observed in the U.S. economy. Furthermore, capitalist spirit preferences provide a way to generate decreasing risk aversion with increases in wealth without resorting to idiosyncratic rates of time preference.  相似文献   
45.
In this paper, the authors empirically examine whether corporations with high degrees of insider ownership enjoy superior returns compared with firms with more diffuse ownership. In addition, the authors evaluate the effects of insider ownership on security returns in relations to the well-known effects of size and earnings yield (or price-earnings) ratios. Results indicate that, in addition to Basu's price-earnings effect, insider ownership is a new statistically significant variable that is associated with abnormal returns. This return anomaly might occur because the market pays an inadequate price for top managements' equity ownership, a firm-specific fundamental variable that has a theoretical foundation in agency theory.  相似文献   
46.
Cross-Hedging: Basis Risk and Choice of the Optimal Hedging Vehicle   总被引:1,自引:0,他引:1  
The basis between a futures contract and its underlying instrument is an important measure of the cost of using the futures contract to hedge. In a cross-hedge, the relative size of the basis of alternative hedging vehicles often plays a decisive role in the selection of the optimal hedging vehicle. After adjusting hedge ratios for basis risk, a genuine risk-cost trade-off is seen in hedging 90-day certificates of deposit with either the Treasury bill contract or the Eurodollar contract. The Eurodollar contract was not uniformly superior as generally believed.  相似文献   
47.
Although the integration of an acquired company with the parent organization is a delicate and complicated process, traditionally no one has ever been responsible for that process--for charting how the two companies will combine their operations, for seeing to it that the integration project meets its deadlines and performance targets, and for educating the new people about the parent company and vice versa. Some enlightened companies have recognized this gap and have appointed a guide--the integration manager--to shepherd everyone through the rocky territory that two organizations must cross before they can function effectively together. The authors have interviewed a number of these leaders in depth, as well as some of the people with whom they've worked. They've determined that integration managers help the merger process in four principal ways: they speed it up, create a structure for it, forge social connections between the two organizations, and help engineer short-term successes. In this article, the authors detail five acquisitions--at TI, General Cable, Meritor Automotive, Lucent, and Johnson & Johnson--and discuss the role that integration managers played in each. They describe exactly what sort of person should do this job. The integration manager must be able to jump into complex situations quickly, relate to many levels of authority smoothly, and bridge gaps in culture and perception. The ever-changing organizations of the Internet age will need leaders with similar skills. In fact, the authors contend, the integration manager should be considered a prototype for the leader of the future.  相似文献   
48.
Private saving in Sub-Saharan Africa declined from more than11 percent of disposable income in the 1970s to less than 8percent in the 1980s and only partially recovered (to less than9 percent) in the 1990s. This article analyzes the determinantsof private saving in Sub-Saharan Africa, seeking to explainthe region's dismal performance and identify policies that couldhelp to reverse the region's decline in saving. The analysisshows that in Sub-Saharan Africa causality runs from growthto investment (and perhaps to private saving), whereas a risein the saving rate Granger-causes an increase in investment.Foreign aid Granger-causes a reduction in both saving and investment,and investment also Granger-causes an increase in foreign aid.The empirical analysis of private saving in Sub-Saharan Africaand other regions over 1970–95 suggests that private savingin Africa can be explained by standard behavioral models. Accordingto these models private saving in Africa lags behind that inother regions (most notably, the high performing Asian economies)because of the region's lower per capita income, high young-agedependency ratio, and high dependence on aid. The combined effectsof these factors substantially outweigh Africa's advantage fromits lower public saving and higher government consumption. Finally,analysis of the experiences of Kenya, Zimbabwe, and Botswanaprovides further insight into the saving process in Sub-SaharanAfrica.  相似文献   
49.
The advocates of resource accounting see it as improving financial management and thereby improving the accountability of the organization, while critics see it as making the whole process of accounting more complicated than it should be. The Department of Public Enterprise in Ireland has published resource accounts for the past two years. While it has encountered many difficulties in making the accounts meaningful, the end result is a set of accounts comparable in standard to those of the private sector. This article explores the issues encountered by the Department and how it overcame these difficulties.  相似文献   
50.
WORLD OUTLOOK     
After six years of steadily rising OECD output, fears of a significant rise in world inflation are now increasing. In the last year there has been a slight pick-up in inflation with producer prices up nearly d per cent. But prompt action by the Federal Reserve to raise interest rates before the presidential election appears to have damped inflationary expectations in the US and has given Japan and Germany an opportunity to tighten monetary policy without causing major currency fluctuations. It is also apparent that the other possible source of world inflation, commodity prices, is not a problem. OPEC over-production has ensured that the oil price remains weak and other commodity prices appear to have stopped rising after a brief acceleration at the beginning of the year. Nevertheless the major imbalances in world trade are declining only slowly and without a change in fiscal policy in the major economies it is difficult to believe that minor changes in monetary policy will be sufficient if the process of adjustment begins to falter. Despite these risks, we take a sanguine view of world prospects. Tighter monetary policy should effect a slowdown in world growth next year (already indicated by recent developments, particularly in the US) and this should be sufficient to control inflation which we expect to peak at just under 5 per cent at the beginning of next year. From 1990 onwards we see steady growth accompanied by low inflation.  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