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   25850篇
  免费   149篇
财政金融   4456篇
工业经济   1411篇
计划管理   3971篇
经济学   5767篇
综合类   571篇
运输经济   58篇
旅游经济   169篇
贸易经济   5849篇
农业经济   308篇
经济概况   2815篇
信息产业经济   45篇
邮电经济   579篇
  2020年   81篇
  2019年   128篇
  2018年   2518篇
  2017年   2286篇
  2016年   1423篇
  2015年   198篇
  2014年   254篇
  2013年   1060篇
  2012年   663篇
  2011年   2255篇
  2010年   2030篇
  2009年   1748篇
  2008年   1729篇
  2007年   2058篇
  2006年   262篇
  2005年   546篇
  2004年   664篇
  2003年   771篇
  2002年   438篇
  2001年   225篇
  2000年   210篇
  1999年   152篇
  1998年   182篇
  1997年   161篇
  1996年   161篇
  1995年   119篇
  1994年   124篇
  1993年   139篇
  1992年   157篇
  1991年   159篇
  1990年   114篇
  1989年   114篇
  1988年   98篇
  1987年   111篇
  1986年   134篇
  1985年   157篇
  1984年   135篇
  1983年   164篇
  1982年   135篇
  1981年   124篇
  1980年   141篇
  1979年   125篇
  1978年   94篇
  1977年   108篇
  1976年   101篇
  1975年   101篇
  1974年   91篇
  1973年   74篇
  1972年   62篇
  1971年   61篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
There is ongoing debate about the apparent weak or negative relation between risk (conditional variance) and expected returns in the aggregate stock market. We develop and estimate an empirical model based on the intertemporal capital asset pricing model (ICAPM) that separately identifies the two components of expected returns, namely, the risk component and the component due to the desire to hedge changes in investment opportunities. The estimated coefficient of relative risk aversion is positive, statistically significant, and reasonable in magnitude. However, expected returns are driven primarily by the hedge component. The omission of this component is partly responsible for the existing contradictory results.  相似文献   
62.
Human capital raises rural incomes, but this effect is swamped by higher returns to human capital in urban markets. This leads to "brain drain" from rural areas. Populations grow more rapidly in rural counties that have a diversified employment base. Farm population grows faster (or declines more slowly) in counties with relatively high farm income, and nonfarm populations grow faster in counties with relatively high nonfarm income. However, higher farm incomes lead to slower nonfarm population growth and vice versa. Rural county government services financed by local taxes or debt have neutral or negative effects on population growth.  相似文献   
63.
64.
We examine the impact of initial public offerings (IPOs) on rival firms and find that the valuation effects are insignificant. This insignificant reaction can be explained by offsetting information and competitive effects. Significant positive information effects are associated with IPOs in regulated industries and the first IPO in an industry following a period of dormancy. Significant negative competitive effects are associated with larger IPOs in competitive industries, those in relatively risky industries, those in high‐performing industries, and those in the technology sector. IPO firms that use the proceeds for debt repayment appear to represent a more significant competitive threat to rival firms relative to IPO firms that use their proceeds for other purposes.  相似文献   
65.
66.
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   
67.
We study the optimal monetary policy in a two-country open-economy model under two monetary arrangements: (a) multiple currencies controlled by independent policy makers; (b) common currencies with a centralized policy maker.
Our findings suggest that: (i) monetary policy competition leads to higher long-term inflation and interest rates with large welfare losses; (ii) the inflation bias and the consequent losses are larger when countries are unable to commit to future policies; (iii) the welfare losses from higher long-term inflation dominates the welfare costs of losing the ability to react optimally to shocks.  相似文献   
68.
69.
The paper considers how people should plan their saving, given certain assumptions about inheritance and changes in household circumstances. The results are produced by a model that takes into account tax and state benefits as well as various private savings vehicles. It concludes that, for many households, saving for retirement through a ‘pension’ might not be optimum and that the best strategy is to vary the incidence and allocation of saving in response to changes in household circumstances.  相似文献   
70.
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