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   205篇
  免费   2篇
财政金融   36篇
工业经济   14篇
计划管理   50篇
经济学   53篇
运输经济   4篇
旅游经济   3篇
贸易经济   23篇
农业经济   12篇
经济概况   11篇
邮电经济   1篇
  2023年   2篇
  2022年   2篇
  2021年   3篇
  2020年   9篇
  2019年   2篇
  2018年   5篇
  2017年   5篇
  2016年   6篇
  2015年   3篇
  2014年   8篇
  2013年   20篇
  2011年   8篇
  2010年   11篇
  2009年   10篇
  2008年   2篇
  2007年   9篇
  2006年   5篇
  2005年   3篇
  2004年   2篇
  2003年   5篇
  2002年   6篇
  2001年   4篇
  2000年   8篇
  1999年   6篇
  1998年   4篇
  1997年   2篇
  1996年   2篇
  1995年   2篇
  1994年   2篇
  1992年   4篇
  1991年   4篇
  1990年   4篇
  1989年   3篇
  1988年   2篇
  1987年   3篇
  1985年   2篇
  1984年   2篇
  1983年   3篇
  1981年   2篇
  1980年   4篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1976年   2篇
  1974年   3篇
  1973年   1篇
  1972年   1篇
  1969年   1篇
  1968年   2篇
  1967年   1篇
排序方式: 共有207条查询结果,搜索用时 0 毫秒
131.
    
In this article, we study the effect of the Pole Position in Formula 1 history on the outcome of the race. Using data for every race between 1950 and 2013, we use two approaches to quantify the effect of being on Pole. First, we estimate the effect on the probability of winning the race using a logit model. Second, we estimate a Poisson model to express the effect in terms of finishing positions. We find that the Pole sitter does have a significant advantage over the other drivers on the grid: two positions at the finish line or about a 10 percentage point higher probability of winning the race. These estimates capture the effect controlling for various confounding factors and a rich set of fixed effects, including driver ability, track characteristics and constructor performance. We also document that the effect varies over seasons.  相似文献   
132.
133.
This study examines the differences between blue-collar and white-collar employees with respect to grievance behavior in the work place. Specifically, the grievance-filing behavior of blue-collar and white-collar bargaining unit workers-members of the same union local-were compared with respect to number of actions, their severity, and their outcomes. Analyses of these grievances (n=604) indicated gross differences in the grievance-filing activity of these groups. These groups are, however, invariant with respect to severity or outcomes of the contested issues.  相似文献   
134.
Competitive balance in sports leagues is essentially concerned with inequality in match and championship outcomes. Measures of inequality or concentration from the income distribution and industrial organization literatures have, therefore, often been used to measure competitive balance. This paper focuses on the use of the Herfindahl-Hirschman Index (HHI) applied to wins. It is shown that variation in the number of teams in the league affects not only the lower bound but also the upper bound of the HHI. An expression is derived for the upper bound and a normalized measure of the HHI, applicable to wins, is proposed. The differences this can make in practice when tracking variations in competitive balance over time are illustrated by considering Depken’s (1999) application of the HHI to Major League Baseball.   相似文献   
135.
Investment Plans and Stock Returns   总被引:2,自引:0,他引:2  
When the discount rate falls, investment should rise. Thus with time-varying discount rates and instantly changing investment, investment should positively covary with current stock returns and negatively covary with future stock returns. Aggregate nonresidential U.S. investment contradicts both these implications, probably because of investment lags. Investment plans, however, satisfy both implications. These investment plans, from a U.S. government survey of firms, are highly informative measures of expected investment and explain more than three-quarters of the variation in real annual aggregate investment growth. Plans have substantial forecasting power for excess stock returns, showing that time-varying risk premia affect investment.  相似文献   
136.
REITs are attractive to investors due to their unique characteristics such as high dividend yields, low correlation with common stocks, and a potential hedge against inflation. Thus the market demand curve of REIT equities may not be horizontal. This paper examines the shape of the market demand curve for REIT equities by employing REIT equity capital flows as a proxy for REIT aggregate demand. Our results do not support a downward demand curve for REIT equities. That is, we do not find evidence for the price-pressure effect in REIT returns. Instead, we find it is REIT returns that affect REIT equity capital flows rather than REIT equity flows that affect REIT returns. The results are consistent when we allow for the presence of market fundamental variables in our analysis. In addition, a variance decomposition analysis suggests that REIT equity capital flows do not cause revisions in expected cash flows (dividends) that are strong enough to impact REIT returns. Thus our findings are consistent with implications that the market demand curve for REIT equities is horizontal.  相似文献   
137.
    
This editorial is the introduction to a special issue of Economics Systems Research on the topic of intercomparison of multi-regional input–output (MRIO) databases and analyses. It explains the rationale for dedicating an issue of this journal to this area of research. Then the six papers chosen for this issue are introduced. This is followed by a concluding section outlining future directions for developers and users of MRIO databases.  相似文献   
138.
The paper contributes to the explanation of the large differences in cross-country productivity performance by modelling and testing the effects of social barriers to communication on productivity and capital accumulation. In an optimal growth model, social barriers to communication, which impede the formation of knowledge connections, are shown to reduce both transitory and steady-state levels of total factor productivity (TFP), per capita consumption and reproducible capital. Empirical testing yields a robust and theoretically consistent result: linguistic barriers to communication reduce productivity and capital accumulation. The findings provide an explanation for cross-country differences in TFP, and fresh insights into how productivity ‘catch up’ may be initiated.
P. Dorian OwenEmail:
  相似文献   
139.
Whether the firms that supply Internet hardware and software should face restrictions on the use of their property is an important and controversial policy issue. Advocates of “net neutrality”—including President Obama and the current FCC majority—believe that owners of broadband distribution systems (hardware used to distribute Internet and video services) and producers of certain “must-have” video content should be subject to prophylactic regulation that transcends present-day antitrust law enforcement. In the economic terms that are used in debates on competition policy, the concern is with vertical integration that may give firms both the opportunity (through denial of access or price discrimination) and incentive (increased profit) to restrict competition. This paper’s central point is that virtually every production process in the economy is vertically integrated, and economics predicts changes in the extent of vertical integration—that is, changes in the boundaries of the firm—in response to changes in relative prices, technology, or institutions. Both vertical integration and changes in the extent of vertical integration are benign characteristics of efficient, dynamic, competitive markets. While there is no shortage of theoretical models in which vertical integration may be harmful, most such models have restrictive assumptions and ambiguous welfare predictions—even when market power is assumed to be present. Empirical evidence that vertical integration or vertical restraints are harmful is weak, compared to evidence that vertical integration is beneficial—again, even in cases where market power appears to be present. Thus, it is reasonable to conclude that prophylactic regulation is not necessary, and may well reduce welfare. Sound policy is to wait for ex post evidence of harm to justify interventions in specific cases. Net neutrality, recently enacted by the FCC but subject to judicial review, is an unfortunate idea.  相似文献   
140.
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