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   501篇
  免费   14篇
财政金融   70篇
工业经济   44篇
计划管理   96篇
经济学   95篇
综合类   8篇
运输经济   3篇
旅游经济   15篇
贸易经济   110篇
农业经济   14篇
经济概况   60篇
  2022年   5篇
  2021年   3篇
  2020年   8篇
  2019年   13篇
  2018年   17篇
  2017年   13篇
  2016年   11篇
  2015年   7篇
  2014年   10篇
  2013年   81篇
  2012年   11篇
  2011年   22篇
  2010年   15篇
  2009年   21篇
  2008年   14篇
  2007年   19篇
  2006年   10篇
  2005年   14篇
  2004年   6篇
  2003年   14篇
  2002年   18篇
  2001年   5篇
  2000年   11篇
  1999年   14篇
  1998年   6篇
  1997年   7篇
  1996年   4篇
  1995年   7篇
  1994年   11篇
  1993年   7篇
  1992年   9篇
  1991年   10篇
  1990年   6篇
  1989年   5篇
  1988年   7篇
  1986年   6篇
  1985年   8篇
  1984年   7篇
  1982年   3篇
  1981年   3篇
  1980年   4篇
  1979年   5篇
  1978年   6篇
  1976年   5篇
  1975年   2篇
  1974年   4篇
  1973年   2篇
  1972年   3篇
  1971年   2篇
  1969年   3篇
排序方式: 共有515条查询结果,搜索用时 0 毫秒
101.
The steady rise in the premiums charged to art buyers at auction (above hammer price) has been underway since 1992. This article, using a stable and bounded sample of repeat purchase of American works created before 1950, reveals that this tact has reduced hammer prices for that art. However, renewed and hyper-competitive efforts to bring more and higher quality art to market by the two main houses, Sotheby’s and Christie’s, have resulted in general profitability. Nevertheless, we calculate that a rise in buyers’ premia at Sotheby’s, a publically traded company, has reduced revenues and profits below their potential in the absence of such increases.  相似文献   
102.
Good estimates place ‘hard core’ smoking rates in the United States at approximately 25%, with little change over the decade of the 1990s. This paper examines the possibilities of ‘harm reduction’ with the use of smokeless tobacco. Specifically, using an econometric model we seek to determine whether an increase in the use of smokeless tobacco would lead to reduced smoking rates in the United States. Applying our model to the NHANES III (National Health and Nutrition Examination Survey) we find that the use of smokeless tobacco by an average U.S. male smoker would increase the average probability of smoke cessation by over 10%. Approximately 3 million additional ‘quits’ would result for 26 million smokers. Our study permits an examination of cessation by age groups and we find that males who use smokeless tobacco between 16 and 65 have a 10–14% probability of quitting but that the probability falls beyond age 66. Important implications for life extension and health costs would attend these results with, under conservative assumptions, life years saved approximating 2.16 million and health care cost-savings of about $3 billion per year.  相似文献   
103.
EU expansion can be seen as a positive‐sum process benefiting all countries by creating larger markets that stimulate more productive economies through increased specialization and economies of scale, implying that the general public in all countries should favour expansion. Contrarily, expansion can be perceived as zero‐sum. Capital and production relocate from higher to lower wage regions while labour does the opposite, possibly raising unemployment and reducing wages in the higher wage regions. The general public in these countries may come to oppose EU expansion attributing any deterioration in their work situation to the gains of new citizens of the European Union. Analysis of changes in Irish attitudes towards EU expansion in 2002, 2007 and 2009 finds no evidence of a link from lowered economic conditions to increased opposition to EU expansion. The only evidence for zero‐sum thinking is that diminished economic circumstances are associated with increased opposition to immigration, but this is not associated with increased opposition to further EU expansion.  相似文献   
104.
A bstract . The hypothesis that the short-run and long-run supply of housing services is unaffected by rent control is examined. It has been asserted that total housing services may remain unchanged when tenant supplied services are included and that capital improvements may return to normal after the initial loss in property values. Using data on health code violations and building permits from a town in metropolitan Boston , the analysis concludes that rent control diminishes the total supply of housing services in the short-run and reduces capital expenditures to maintain and improve housing services in the long-run.  相似文献   
105.
We explore relationships among four measures of ‘timeliness’ in the financial accounting research literature: the Ball and Brown (1968) measure; Dyer and McHugh's (1975) reporting lag; the Khan and Watts (2009) measure; and the Beekes and Brown (2006) measure. There are good reasons why the measures might be related and also why they might differ. Thus we examine the extent to which they are empirically related, using data for a sample of Australian companies over the period 1994 to 2005. Overall, we find the four measures share a common label, ‘timeliness’, but not much else.  相似文献   
106.
Georgia's lottery-funded HOPE Scholarship program provides free tuition to in-state students who can maintain a B average at state universities. However, roughly half of HOPE Scholars lose their support after their freshman year. This study employs student-level administrative data to identify the observed characteristics that systematically relate to scholarship attrition. Conditional on measures of student ability, there are not statistically significant differences between white, black, and Hispanic students. However, there are dramatic differences across academic disciplines. Students majoring in science, engineering, and computing are 21 to 51 percent more likely to lose their HOPE Scholarships than students in other disciplines.  相似文献   
107.
108.
We examine whether requiring (IFRS) versus allowing (UK GAAP) conditional capitalisation of development expenditure affects the extent to which capitalisation conveys more information about future earnings, relative to expensing. We show that capitalisation results in current returns incorporating more future earnings information than expensing under UK GAAP but not under IFRS. i.e., the amount of information incorporated into market prices of capitalisers is the same as that from firms expensing R&D under IFRS. This result holds irrespective of a firm’s earnings management incentives or strength of corporate governance for the period under IFRS. We argue that this is because investors experience greater uncertainty regarding the realisation of future economic benefits associated with the development costs capitalised in the post-IFRS period. Consistent with this, we do find a positive association between capitalised R&D and future earnings variability in the post-IFRS period only, as well as short-term positive abnormal returns for capitalisers relative to expensers in the pre-IFRS period only. Overall, these findings suggest that when moving away from a standard that offers an overt option to capitalise or expense, capitalisation comes with greater uncertainty, which is resolved only in the long term.  相似文献   
109.
Previous studies have discouraged the use of the Cox proportional hazards (PH) model for traditional mediation analysis as it might provide biased results. Accelerated failure time (AFT) models have been proposed as an alternative for Cox PH models. In addition, the use of the potential outcomes framework has been proposed for mediation models with time-to-event outcomes. The aim of this paper is to investigate the performance of traditional mediation analysis and potential outcomes mediation analysis based on both the Cox PH and the AFT model. This is done by means of a Monte Carlo simulation study and the illustration of the methods using an empirical data set. Both the product-of-coefficients method of the traditional mediation analysis and the potential outcomes framework yield unbiased estimates with respect to their own underlying indirect effect value for simple mediation models with a time-to-event outcome and estimated based on Cox PH or AFT.  相似文献   
110.
We present a case discussion of the development of surveys for evaluating a metropolitan ridesharing project. We trace the conceptual development of an “ideal” survey design, the problems encountered in actual implementation, and finally the design of a low-cost narrow-range survey which focuses on specific information used to assess program benefits. We feel that this discussion can assist other ridesharing agencies, particularly those in the initial stages of formation, in determining costs and outcomes of specific survey techniques.  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