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   4664篇
  免费   1435篇
  国内免费   17篇
财政金融   1017篇
工业经济   501篇
计划管理   1262篇
经济学   884篇
综合类   113篇
运输经济   125篇
旅游经济   93篇
贸易经济   1050篇
农业经济   603篇
经济概况   468篇
  2024年   2篇
  2023年   9篇
  2022年   6篇
  2021年   196篇
  2020年   226篇
  2019年   622篇
  2018年   417篇
  2017年   445篇
  2016年   417篇
  2015年   408篇
  2014年   435篇
  2013年   660篇
  2012年   408篇
  2011年   344篇
  2010年   275篇
  2009年   200篇
  2008年   234篇
  2007年   184篇
  2006年   160篇
  2005年   131篇
  2004年   88篇
  2003年   79篇
  2002年   55篇
  2001年   35篇
  2000年   36篇
  1999年   27篇
  1998年   1篇
  1997年   2篇
  1996年   4篇
  1995年   3篇
  1994年   1篇
  1993年   3篇
  1992年   1篇
  1984年   1篇
  1982年   1篇
排序方式: 共有6116条查询结果,搜索用时 662 毫秒
61.
农民收入问题与乡镇企业的发展方向   总被引:1,自引:0,他引:1  
先以时间序列考察农民收入变动和乡镇企业发展的关系,再通过乡镇企业技术构成和就业弹性指标分析指出近年来乡镇企业在促进农村劳动力转移,增加农民收入方面的.问题主要是资本密集型增长方式导致吸纳劳动力能力下降,最后提出乡镇企业发展的方向是以城镇化为依托,选择适宜的增长方式,进一步提高农民收入。  相似文献   
62.
Usually, only initial revenue effects of personal income tax reforms are considered. However, a tax reform characterized by base broadening in exchange for rate reduction can reduce the income elasticity of tax revenue. In that case, the increase in revenue after income growth will be relatively smaller: the tax reform has a negative effect on revenue in the second period. Using the microtax model of the Central Planning Bureau we simulated the effects of the Dutch Oort reform 1990 on revenue elasticities and, consequently, on tax revenue. The income tax revenue elasticity declined by 17 percent which caused an additional revenue loss of 0.6 percent in 1990, rising to 3.8 percent in 1993.  相似文献   
63.
波型梁护栏通常用于高速公路 ,起安全保护作用 ,按交通部的标准要求 ,波型梁护栏是采用将冷轧钢板经冷弯成型而得。因而 ,运用冷弯成型理论 ,结合实际设计经验 ,给出了波型梁栏的孔型设计 ,此套孔型在 L w50 0 / l开口冷弯型钢专用机组上获得成功的同时 ,也将此推广到 1 65,2 1 9高频直缝焊管机组上。生产的波型梁护栏均满足交通部标准要求 ,且已用于石安高速公路和京沈高速公路。  相似文献   
64.
This paper examines trade credit policies of small firms operating in a bank‐dominated environment (Finland). We find that creditworthiness and access to capital markets are important determinants of trade credit extended by sellers. The level of purchases is positively correlated with the level of accounts payable. Larger and older firms and firms with strong internal financing are less likely to use trade credit, whereas firms with a high ratio of current assets to total assets, and firms subject to loan restructurings use it more. Negative loan decisions by financial intermediaries increase and a close bank‐borrower relationship decreases the probability that a firm does not take advantage of trade credit discounts.  相似文献   
65.
We examine the determinants of the new issue maturity of corporate bonds. As credit rating decreases, new bond issues have longer maturities, but substantial variation in maturity within each rating class remains. We seek to explain the variation of new issue maturity within credit classes. We find that asset maturity, security covenants, and macroeconomic conditions influence the new issue maturity of bonds within rating categories.  相似文献   
66.
Previous findings that related diversification creates value have been called into question over concerns about methodology and measures. Reviewing existing theory to consider how a firm's knowledge base interacts with its product market activity, I address several of these concerns by creating a measure of technological diversity based on citation‐weighted patents. The measure indicates a firm's opportunity for corporate diversification based on economies of scope in valuable knowledge assets, is defined for both single‐ and multibusiness firms, and is not correlated with more fundamental aspects of diversification, such as the number of businesses in the corporate portfolio. Evidence from a large sample of firms shows the positive relationship between diversification based on technological diversity and market‐based measures of performance, controlling for R&D intensity and capital intensity as further indicators of the type of assets underlying diversification. Results hold when controlling for the endogeneity of diversification and performance in a cross‐sectional sample or when controlling for unobserved factors using panel data. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
67.
The inequality in pre-tax income increased in Norway in the 1990s, while the concentration of taxes remained largely unaltered. This means that tax progressivity has decreased in the period, as measured by summary indices of tax progressivity. In this paper I analyze individual income data to ascertain whether tax changes in the period can explain the observed decrease in tax progressivity. As marginal tax rates at high income levels have been substantially reduced in the period, for instance through the tax reform of 1992, it is expected that tax changes may have influenced the degree of inequality in pre-tax incomes. This behavioral effect is examined by deriving estimates of the elasticity of gross income with respect to the net-of-tax rate, obtained from various panel data regressions. The tax changes may also have shifted the distributional burden of taxes for unaltered level of pre-tax income inequality. In order to identify this (direct) effect of tax-law alterations, the same fixed distribution of pre-tax income is exposed to various tax-laws in the period.  相似文献   
68.
We provide preliminary evidence, consistent with Skinner (1995), that Canada's relatively principles‐based GAAP yield higher accrual quality than the United States' relatively rules‐based GAAP. These results stem from a comparison of the Dechow‐Dichev (2002) measure of accrual quality for cross‐listed Canadian firms reporting under both Canadian and U.S. GAAP. However, we document lower accrual quality for Canadian firms reporting under U.S. GAAP than for U.S. firms, which are subject to stronger U.S. oversight, reporting under U.S. GAAP. The latter results suggest that stronger U.S. oversight compensates for inferior accrual quality associated with rules‐based GAAP. Consistent with the positive effect of Canada's principles‐based GAAP and the offsetting negative effect of Canada's weaker oversight, we find no overall difference in accrual quality between Canadian firms reporting under Canadian GAAP and U.S. firms reporting under U.S. GAAP. Our results imply that (1) policymakers who wish to compare the effectiveness of oversight across jurisdictions must control for the GAAP effect; and (2) accounting standard‐setters who wish to compare the effectiveness of principles‐ versus rules‐based GAAP must control for oversight strength.  相似文献   
69.
Economic reform in China has attracted growing attention from around the world owing to its significance for theory and practice. What has been largely missing in the literature is the temporal dimension, i.e., the changes over time in key variables such as organizational environment, firm strategic adaptations, and the performance implications. In this study, we investigate environment and strategic adaptations 12 years after Tan and Litschert examined these issues in 1990. Following a staged model, the study found that (1) organizational environment and firm strategic adaptations have co‐evolved over time, (2) a new configuration has emerged and is related to improved performance, and (3) such a relationship is moderated by the stage during transition in which firms were founded. Specifically, firms founded since 1990 are more proactive and innovative than firms that had existed in the previous stage. Copyright © 2004 John Wiley & Sons, Ltd.  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