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   19048篇
  免费   482篇
  国内免费   1篇
财政金融   4126篇
工业经济   1425篇
计划管理   3245篇
经济学   4292篇
综合类   227篇
运输经济   91篇
旅游经济   279篇
贸易经济   2947篇
农业经济   890篇
经济概况   1925篇
邮电经济   84篇
  2021年   107篇
  2020年   214篇
  2019年   304篇
  2018年   336篇
  2017年   396篇
  2016年   379篇
  2015年   253篇
  2014年   401篇
  2013年   1882篇
  2012年   509篇
  2011年   561篇
  2010年   465篇
  2009年   565篇
  2008年   479篇
  2007年   497篇
  2006年   444篇
  2005年   400篇
  2004年   388篇
  2003年   447篇
  2002年   416篇
  2001年   401篇
  2000年   443篇
  1999年   368篇
  1998年   387篇
  1997年   378篇
  1996年   349篇
  1995年   348篇
  1994年   349篇
  1993年   330篇
  1992年   363篇
  1991年   372篇
  1990年   295篇
  1989年   239篇
  1988年   248篇
  1987年   233篇
  1986年   269篇
  1985年   387篇
  1984年   366篇
  1983年   314篇
  1982年   328篇
  1981年   347篇
  1980年   290篇
  1979年   296篇
  1978年   263篇
  1977年   194篇
  1976年   194篇
  1975年   195篇
  1974年   145篇
  1973年   167篇
  1972年   121篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
This article considers why a business accounting model was applied in an early adoption of public-sector accrual accounting. The history of that change shows that large private-sector consulting firms were active in the promotion and implementation of a commercial model of public-sector accrual accounting. It is argued here that the consulting firms' actions are best understood using concepts of mimetic isomorphism and the interplay between self-interest and perceived public interest. They formed an epistemic community in which self-interest was present but with a zealous belief that private-sector accounting was an inherently righteous objective for the public sector.  相似文献   
22.
23.
In this paper we will analyze the relationship between the value and duration moments of a cash flow and movements in the yield curve. We will show that for changes in the yield curve which can be related to tn , the 1st order changes in the net present value of a cash flow are linearly dependent on the n + lth duration moments, and that the 2nd order changes are dependent on the sum of duration moments of order 2 n + 1 and 2 n + 2. We will use this relationship to tilt tracking portfolios so as to protect them against specific changes in the yield curve.  相似文献   
24.
R.Q. Doeswijk 《De Economist》1997,145(4):573-598
The efficient markets hypothesis states that at any times security prices fully reflect all available information. Contrarian investment strategies do not recognize the efficiency of capital markets. They call for buying undervalued stocks, i.e. stocks with a low price relative to their fundamentals. The idea behind such a strategy is to take advantage of the extrapolation behaviour of naive investors. Using a fresh and extensive data set from the Dutch stock market, we found that these strategies yield an outperformance without a higher risk. Our results make it hard to maintain the efficient market hypothesis.  相似文献   
25.
Futures research includes the problem of generating reasonably exhaustive and plausible scenarios for a given topic, a problem for which there are no truly satisfactory solutions. This article reviews and evaluates a method, field anomaly relaxation, first put forward some 20 years ago. The evaluation is in the context of an illustrative study of political developments in Europe. The research reconstructs and further develops the method and concludes that it has something to offer for scenario generation. Its weaknesses are identified and suggestions for further research are made.  相似文献   
26.
In many previous rice trade models, the commodity has been regarded as a homogeneous product. However, homogeneity is not an appropriate assumption, given the various types of rice that are traded and consumed. Parameters estimated from these models, therefore, do not reflect the real world market for rice and, hence, may mislead decision makers who use the results for policy evaluation purposes. This study uses an Armington approach to model the world rice trade as a differential good market and to derive trade elasticity parameters.  相似文献   
27.
This paper compares the approximation capabilities of the minflex-Laurents translog and minflex generalized Leontief cost functions with their translog and generalized Leontief counterparts in Monte Carlo experiments. The minflex Laurent specifications generally provided closer approximations to underlying technical and economic parameters. Imposition of nonlinear restrictions on some of the parameters of the minflex Laurent models yielded measurable improvement in estimated elasticities of substitutions, returns to scale, and rates of technical change.The refereeing process of this paper was handled through E. Appelbaum.  相似文献   
28.
This paper attempts to explain why home ownership rates among young adults fell in the early 1990s when various indicators suggested it had become more affordable. As a potential explanation, we focus on the relatively slower growth in their incomes and argue that this could signal a fundamental change in behaviour, a change in route adopted into owner occupation, induced by structural economic change. In examining the implications for housing tenure, we use a conditional fixed effects multinomial logit model to exploit the information on the tenure choice and the timing of transitions in the British Household Panel Survey. Our results reveal that relatively slower income growth contributed significantly to this decline and that ignoring the intertemporal correlation in micro‐panels generates inconsistent results.  相似文献   
29.
This paper considers the impact of Programa de Educación, Salud y Alimentación ( PROGRESA ), a large Mexican rural anti-poverty programme that had an evaluation sample in which overall treatment was randomly assigned to some communities but not others, on child nutrition. When we examine the impact of PROGRESA based on the presumption of randomized allocations, we find that PROGRESA had no or even a negative impact on child nutrition. However, not all children designated to receive nutritional supplements actually did so. Our preferred estimates – child fixed-effects estimates that control for unobserved heterogeneity that is correlated with access to the supplement – indicate a significantly positive and fairly substantial programme effect of the nutritional supplements on children 12–36 months. They imply an increase of about a sixth in mean growth per year for these children and a lower probability of stunting. Effects are somewhat larger for children from poorer communities but whose mothers are functionally literate. The long-term consequences of these improvements are non-trivial; its impact working through adult height alone could result in a 2.9% increase in lifetime earnings.  相似文献   
30.
The Australian hospital industry is described and it is noted that the term ‘hospital’ is applied to a wide range of institutions. The main problems and issues associated with hospitals are discussed, including the lack of adequate methods of measuring their ‘products’ and of allocating funds to them. The role of the medical staff in influencing the ‘demand’ for hospital beds and in resource allocation is emphasised as a major influence on hospital behaviour. In a study of the determinants of the costs of Victorian public hospitals it was found that the complexity of the case-mix as measured by diagnosis related groups (DRGs) was a major determinant of teaching hospital costs but not of those of other large hospitals. DRG-based funding and costing of hospitals is recommended as a strategy for achieving increased efficiency.  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