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   13035篇
  免费   352篇
财政金融   2426篇
工业经济   990篇
计划管理   2230篇
经济学   3094篇
综合类   161篇
运输经济   93篇
旅游经济   172篇
贸易经济   1899篇
农业经济   610篇
经济概况   1656篇
邮电经济   56篇
  2021年   81篇
  2020年   145篇
  2019年   226篇
  2018年   246篇
  2017年   297篇
  2016年   284篇
  2015年   183篇
  2014年   295篇
  2013年   1251篇
  2012年   365篇
  2011年   397篇
  2010年   316篇
  2009年   438篇
  2008年   344篇
  2007年   341篇
  2006年   300篇
  2005年   293篇
  2004年   273篇
  2003年   295篇
  2002年   271篇
  2001年   271篇
  2000年   278篇
  1999年   266篇
  1998年   237篇
  1997年   257篇
  1996年   238篇
  1995年   203篇
  1994年   200篇
  1993年   218篇
  1992年   234篇
  1991年   224篇
  1990年   225篇
  1989年   191篇
  1988年   180篇
  1987年   176篇
  1986年   190篇
  1985年   222篇
  1984年   224篇
  1983年   194篇
  1982年   181篇
  1981年   197篇
  1980年   174篇
  1979年   201篇
  1978年   169篇
  1977年   153篇
  1976年   139篇
  1975年   103篇
  1974年   106篇
  1973年   112篇
  1972年   78篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
81.
Abstract
This article looks at the evolution of corporate balance sheets and investment over the past few years .
We find that many companies have significantly improved their balance sheets in this time. Leverage has been reduced, and this, coupled with lower nominal interest rates, has improved the interest cover and cash flows of the corporate sector. For many firms, the process of balance sheet repair has proceeded a long way so that the extent to which the financial position of firms will impinge on investment is much lower than it was a few years ago.
Looking further ahead, it appears that the rate of return to investing in capital is relatively high, at least when judged against the standards of earlier downturns. With the recovery picking up pace we should, therefore, see firms more inclined to expand their capital expenditure and less focused on financial restructuring.  相似文献   
82.
Professor Takatoshi Ito in a recent American Economic Review paper documents that exporters and importers have biased exchange rate forecasts and the biases are in opposite directions. At first glance, it is difficult to provide a rational foundation for such behavior. Professor Ito hypothesizes that these forecasts are the result of wishful expectations. However, if forecasts are stochastic, then minimization of a quadratic loss function results in a rational hedge applied to either $/¥ or ¥/$. The different perspectives of importers and exporters determines which form is hedged and determines the direction of the bias.  相似文献   
83.
84.
An aggregate analysis of supply response in the paddy (rice) sector of Sri Lanka during 1952-87 is conducted to identify the impact of pricing policy, irrigation programmes, institutional credit and concessional sales on area, yield and overall supply. The focus of the estimation procedure is the selection of an appropriate functional form for regressions and on the price variable that best represents the price to which producers respond in making area and yield decisions. In the case of both area and yield, the econometric criteria favour the acceptance of log-linear equations with the ratio of the guaranteed price of paddy to fertiliser price. On the basis of overall supply elasticity estimates, it is concluded that while pricing policy, irrigation programmes and institutional credit provide incentives to the expansion of paddy production, concessional sales of rice act as a disincentive.  相似文献   
85.
The time-series distributed lag techniques of econometrics can be usefully applied to cross-sectional, spatial and cross-section time-series situations. The application is perfectly natural in cross-section, time-series models when regression coefficients evolve systematically as the cross-section grouping variable changes. The evolution of such coefficients lends itself to polynomial approximation or more general smoothing restrictions. These ideas are not new, Gersovitz and McKinnon (1978) and Trivedi and Lee (1981) providing two of the earliest applications of cross-equation smoothing techniques. However, their applications were in the context of coefficient variation due to seasonal changes and this may account for the non-diffusion of these techniques. The approach here is illustrated in the context of age-specific household formation equations based on census data, using Almon polynomials when the regression coefficients vary systematically by age group. A second application is provided, using spatial data, explaining the incidence of crime, by region; using polynomial and geometric smoothing to model distance declining regional effects.  相似文献   
86.
87.
Sufficient conditions are found for designs, derived from completely symmetric designs by deleting binary blocks, to be E-optimal. Sufficient conditions are also found for E-optimality of designs obtained from other E-optimal designs by deleting all blocks forming a balanced incomplete block design on a subset of the treatments. The results include many binary and non-binary designs for which E-optimality was previously unknown.  相似文献   
88.
The effectiveness of the decision‐making process in appraisal has been of long‐standing interest. This paper reports the results of research exploring the extent to which those undertaking appraisals apply systematic processes to their decision‐making, represented in terms of the cognitive processing models applied by appraisers. Results of 22 cognitive mapping interviews exploring appraisal practice, undertaken with appraisers in the Malaysian education system, are described. The resultant cognitive maps have been explored for what they tell us about the cognitive processing models underlying appraisers' decision‐making. Results suggest that the practice of appraisal evidenced in interviews demonstrates the presence of cognitive processing that reflects theoretical cognitive processing models, although some differences are observed between less experienced and experienced appraisers' models. Implications from the interview findings for the practice of appraisal are identified.  相似文献   
89.
The paper examines a firm's cost of expropriation risk in a framework that links it to the government's incentive to expropriate. The author develops a pricing model for the firm's cost of expropriation risk that includes the positions of both government and firm. The government's decision to expropriate is modeled as an American-style call option. The cost of expropriation risk is modeled as the value of an insurance policy that pays off all losses resulting from expropriation. The firm's cost of expropriation risk is determined by the government acting to optimize the value of its option to expropriate. The author identifies the parameters that link the government's option to expropriate to the firm's cost of expropriation risk, and shows how the model can be used in capital budgeting decisions and the ongoing management of expropriation risk.  相似文献   
90.
Managerial Equity Ownership and the Demand for Outside Directors   总被引:1,自引:0,他引:1  
This paper examines the linkage between the use of outside directors and managerial ownership. We conjecture there are two linkages: the standard incentive‐alignment demand for monitoring when managers own little stock and an entrenchment‐amelioration demand when managerial stock ownership is high. As a consequence, we predict the association between managerial ownership and board composition will be nonlinear (U‐shaped if the entrenchment effect is sufficiently pronounced). Using UK data, we find that both quadratic and logarithmic models outperform the simple linear relationship assumed in prior research and that the substitution between managerial ownership and board composition is stronger than hitherto supposed.  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