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   720篇
  免费   26篇
财政金融   159篇
工业经济   59篇
计划管理   133篇
经济学   167篇
综合类   1篇
运输经济   3篇
旅游经济   8篇
贸易经济   119篇
农业经济   21篇
经济概况   76篇
  2023年   4篇
  2021年   6篇
  2020年   6篇
  2019年   14篇
  2018年   11篇
  2017年   21篇
  2016年   12篇
  2015年   14篇
  2014年   15篇
  2013年   76篇
  2012年   22篇
  2011年   23篇
  2010年   15篇
  2009年   23篇
  2008年   23篇
  2007年   16篇
  2006年   18篇
  2005年   19篇
  2004年   19篇
  2003年   15篇
  2002年   22篇
  2001年   12篇
  2000年   12篇
  1999年   13篇
  1998年   10篇
  1997年   12篇
  1996年   14篇
  1995年   10篇
  1994年   13篇
  1993年   11篇
  1992年   14篇
  1991年   13篇
  1990年   13篇
  1989年   10篇
  1988年   9篇
  1987年   13篇
  1986年   14篇
  1985年   12篇
  1984年   16篇
  1983年   8篇
  1982年   19篇
  1981年   12篇
  1980年   10篇
  1979年   10篇
  1978年   9篇
  1977年   10篇
  1976年   8篇
  1975年   8篇
  1972年   9篇
  1969年   5篇
排序方式: 共有746条查询结果,搜索用时 31 毫秒
101.
Over-investment of free cash flow   总被引:57,自引:0,他引:57  
This paper examines the extent of firm level over-investment of free cash flow. Using an accounting-based framework to measure over-investment and free cash flow, I find evidence that, consistent with agency cost explanations, over-investment is concentrated in firms with the highest levels of free cash flow. Further tests examine whether firms’ governance structures are associated with over-investment of free cash flow. The evidence suggests that certain governance structures, such as the presence of activist shareholders, appear to mitigate over-investment.  相似文献   
102.
We conduct an investigation of the sources of gains and losses in cross‐border acquisitions in light of different motives for undertaking these transactions: synergy‐seeking, managerialism and hubris. We find that the data are consistent with the expectation that multiple sources of value creation exist in synergistic cross‐border acquisitions: asset sharing, reverse internalization of valuable intangible assets, and financial diversification. Gains accrue to bidder firm shareholders only for the least fungible of these sources of gains, i.e., reverse internalization. For value‐destroying acquisitions that are expected to be driven by managerialism, we find that the data are consistent with only one of the sources of value destruction that we examine, i.e., risk reduction. In these acquisitions, the evidence also suggests that the relative size of the target to the bidder mitigates the negative effects of risk reduction. Our results underscore the importance of considering the implications of alternative behavioral assumptions in empirical strategy content research. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
103.
Poly-t densities are defined by the property that their kernel is a product, or ratio of products, of Student-t kernels. These multivariate densities arise as Bayesian posterior densities for regression coefficients, under a surprising variety of specifications for the prior density and the data generating process. Although no analytical expression exists for the integrating constant and moments of these densities, these parameters are obtained through numerical integration in a number of dimensions given by the number of Student-t kernels in the numerator, minus one. The paper reviews how poly-t densities arise in regression analysis, and summarizes the results obtained for a number of models.  相似文献   
104.
105.
The paper studies with the help of a model the investment and employment policy through a business cycle for a firm which maximizes its discounted income and assumes that the forecasts are perfectly correct. In addition to investment and wages costs, the firm has to bear recruitment and firing costs; it has at its disposal four control variables: the selling price, the recruitment rate, the firing rate and the investment rate. The firm's strategy appears to be generally a sequence of elementary policies. This sequence highly depends on the relative values of parameters like the rate of depreciation of equipment, the natural rate of decrease of employment, the ratio of the unit recruitment and firing cost with respect to the wage rate, the rate of decrease of demand during recession. The results obtained are, on the whole, quite consistent with the behaviours which have been observed in the last years, and explain some of the features of recessions.  相似文献   
106.
This paper compares commonly used approaches for estimating the relation between long-horizon returns and a predetermined variable X1, such as dividend yields. Specifically, we look at regression of (i) nonoverlapping multiperiod returns on Xt (ii) overlapping multiperiod returns on Xt, (iii) single-period returns on multiperiod Xt, and (iv) single-period returns on Xt and its implied long-horizon regression coefficient. We provide analytical formulae which quantify the efficiency of the estimators used in the various approaches. Using the formulae, as well as Monte Carlo simulations, we demonstrate that the relative efficiency of the estimators used in the various approaches differs remarkably, depending on the dynamic structure of the regressor. of special interest for financial economists, when the regressors are highly autocorrelated, we find that the regressions (ii) (iii), and (iv) provide only marginal efficiency gains above and beyond the nonoverlapping long-horizon regression.  相似文献   
107.
The paper gives sufficient conditions for the existence of an equilibrium with price rigidities and quantity rationing where: (i) demand is never rationed; (ii) net trades of an a priori chosen numeraire are never rationed; and (iii) supply is rationed only when relative prices are downward rigid.  相似文献   
108.
109.
As early as the mid-nineteenth century, the German farmer and economic theorist, Johann von Thünen, knew that the economic pie could be made larger by the common man's ability to work more creatively and productively. Von Thünen's contributions to management thought may well be what we need today.  相似文献   
110.
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