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   5521篇
  免费   125篇
  国内免费   1篇
财政金融   1208篇
工业经济   467篇
计划管理   948篇
经济学   1043篇
综合类   80篇
运输经济   47篇
旅游经济   84篇
贸易经济   976篇
农业经济   304篇
经济概况   488篇
邮电经济   2篇
  2021年   29篇
  2020年   69篇
  2019年   87篇
  2018年   98篇
  2017年   96篇
  2016年   110篇
  2015年   66篇
  2014年   110篇
  2013年   647篇
  2012年   165篇
  2011年   177篇
  2010年   158篇
  2009年   176篇
  2008年   184篇
  2007年   161篇
  2006年   167篇
  2005年   138篇
  2004年   137篇
  2003年   147篇
  2002年   169篇
  2001年   133篇
  2000年   116篇
  1999年   135篇
  1998年   106篇
  1997年   106篇
  1996年   100篇
  1995年   96篇
  1994年   81篇
  1993年   86篇
  1992年   79篇
  1991年   69篇
  1990年   69篇
  1989年   66篇
  1988年   67篇
  1987年   63篇
  1986年   75篇
  1985年   98篇
  1984年   91篇
  1983年   89篇
  1982年   74篇
  1981年   77篇
  1980年   79篇
  1979年   60篇
  1978年   72篇
  1977年   83篇
  1976年   45篇
  1975年   48篇
  1974年   55篇
  1973年   38篇
  1972年   30篇
排序方式: 共有5647条查询结果,搜索用时 15 毫秒
91.
92.
Providing health care to low income or elderly residents of rural areas remains a serious national health care problem in the United States. This case study evaluates an intervention for primary outpatient care to a particular class of patients – veterans – and shows how it can benefit them. Locating the outpatient clinic in a struggling rural hospital makes an outreach by the urban veterans hospital financially feasible and is profitable for the rural hospital.  相似文献   
93.
We extract from the yield curve a new measure of fundamental economic uncertainty, based on McDiarmid’s diameter and related methods for optimal uncertainty quantification (OUQ). OUQ seeks analytical bounds on a system’s behaviour, even where aspects of the underlying data-generating process and system response function are not completely known. We use OUQ to stress test a simple fixed-income portfolio, certifying its safety—i.e. that potential losses will be ‘small’ in an appropriate sense. The results give explicit tradeoffs between: scenario count, maximum loss, test horizon, and confidence level. Unfortunately, uncertainty peaks in late 2008, weakening certification assurances just when they are needed most.  相似文献   
94.
Mediante el cálculo de un índice de disimilitud con datos de la Encuesta Anual de Industrias, los autores constatan que la segregación por género en las manufacturas indias entre 1989–1990 y 2000–2001 disminuyó, aunque debido sobre todo a cambios en la estructura sectorial del empleo, y no tanto a la integración de género. El índice resultó sensible al número de grupos de industrias establecido en la clasificación utilizada para el cálculo. Tanto a escala nacional como estatal, las mujeres tienen muy pocas oportunidades de empleo formal, concentradas en ciertos sectores manufactureros tradicionalmente femeninos, como los de alimentos, tabaco, confección, hilado y textil.  相似文献   
95.
96.
The damage costs of climate change toward more comprehensive calculations   总被引:2,自引:2,他引:2  
It is argued that estimating the damage costs of a certain benchmark climate change is not sufficient. What is needed are cost functions and confidence intervals. Although these are contained in the integrated models and their technical manuals, this paper brings them into the open in order to stimulate discussion. After briefly reviewing the benchmark climate change damage costs, region-specific cost functions are presented which distinguish tangible from intangible losses and the losses due to a changing climate from those due to a changed climate. Furthermore, cost functions are assumed to be quadratic, as an approximation of the unknown but presumably convex functions. Results from the damage module of the integrated climate economy modelFUND are presented. Next, uncertainties are incorporated and expected damages are calculated. It is shown that because of convex loss functions and right-skewed uncertainties, the risk premium is substantial, calling for more action than analysis based on best-guess estimates. The final section explores some needs for further scientific research.  相似文献   
97.
In this journal [Miller, R. A. (2009). The weighted average cost of capital is not quite right. The Quarterly Review of Economics and Finance, 49, 128–138], I argued that the standard WACC formula is inadequate in most circumstances to reward stockholders and bondholders where the necessary cash flows are calculated separately to exactly cover the respective costs of capital. Axel Pierru [2009. ‘The weighted average cost of capital is not quite right’: A comment. The Quarterly Review of Economics and Finance, 49, 1219–1223] observes correctly that my assumed repayment schedules (equal periodic payments to bondholders; similarly for stockholders) imply a temporal drift in the debt (or leverage) ratio; he would recalculate the WACC annually. He proposes an alternative calculation of the repayment schedules under the constraint of a constant debt ratio. Here I suggest three additional possible repayment schedules; in general repayment schedules determine the drift in the debt ratio. However, the expected repayment schedules are established at the time the project is accepted and financed, hence the relevant debt ratio is that which exists at that time. The WACC for a specific project need not (and should not) be recalculated for that project throughout its financial life when that project has already been accepted and financed.  相似文献   
98.
This paper proposes a technique for computing optimal taxes in a full general equilibrium model. It is based upon a fixed point algorithm of the type that is widely used to solve Walrasian general equilibrium models. Computing an optimal tax equilibrium is more difficult than solving a general equilibrium model only to the extent that the derivatives of the social welfare function and of the consumer demand functions must be calculated in the former case. Solutions to several sample problems are provided to demonstrate the technique. They suggest that optimal tax rates are exceedingly sensitive to the specification of the model used to derive them.  相似文献   
99.
This study reviews the existing evidence on the effects of tax reforms on output levels and growth over the short and long run from different strands of the literature. It develops and applies criteria to evaluate the usefulness of ex‐post estimates to predict the effects of tax reforms ex ante. Based on these criteria, we present detailed tables summarizing and comparing ex‐post estimates of the effects of tax reforms. Overall, our review suggests that at least the direction of the short‐run and long‐run growth effects can be predicted with a reasonable degree of certainty, but there is disagreement with respect to the magnitude. Our review also suggests that depending on the tax change, trade‐offs between short‐run stabilization and long‐run growth may arise and that more research on this question is needed. (JEL E62, H20, O20)  相似文献   
100.
The role and potential contribution of a positive lens to the design of systems and organizations is the focus of this introductory essay. The positive lens refers to a perspective in the social sciences that emphasizes the capacity of people and organizations to construct better work environments, customer experiences and socio-technical systems through a positive discourse. Joining a positive lens on organizing with the transformative power of design thinking opens new horizons and uncovers previously overlooked possibilities for creating organizational and social well-being. This volume aims to introduce design with a positive lens into the research on information systems and organizations and to explore its potential value.  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