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   2672篇
  免费   109篇
财政金融   532篇
工业经济   184篇
计划管理   361篇
经济学   489篇
综合类   22篇
运输经济   55篇
旅游经济   252篇
贸易经济   641篇
农业经济   43篇
经济概况   197篇
邮电经济   5篇
  2024年   15篇
  2023年   33篇
  2022年   23篇
  2021年   48篇
  2020年   90篇
  2019年   191篇
  2018年   179篇
  2017年   162篇
  2016年   128篇
  2015年   82篇
  2014年   112篇
  2013年   455篇
  2012年   133篇
  2011年   124篇
  2010年   118篇
  2009年   123篇
  2008年   85篇
  2007年   72篇
  2006年   47篇
  2005年   56篇
  2004年   52篇
  2003年   44篇
  2002年   37篇
  2001年   34篇
  2000年   28篇
  1999年   40篇
  1998年   26篇
  1997年   26篇
  1996年   26篇
  1995年   17篇
  1994年   19篇
  1993年   18篇
  1992年   14篇
  1991年   17篇
  1990年   10篇
  1989年   9篇
  1988年   11篇
  1987年   8篇
  1986年   5篇
  1985年   6篇
  1984年   6篇
  1983年   9篇
  1981年   5篇
  1980年   6篇
  1979年   9篇
  1978年   3篇
  1977年   5篇
  1976年   3篇
  1975年   3篇
  1972年   2篇
排序方式: 共有2781条查询结果,搜索用时 0 毫秒
21.
A bstract . Historians interested in 20th century American reform often seek to analyze the ideologies of political leaders separately from the institutions that these same leaders created. Such emphases on ideas, as opposed to actions, has, for example, led "revisionist" American historians to argue that the presidencies of Herbert Hoover and Franklin D. Roosevelt were "conceptually continuous." Our examination of the major social welfare programs undertaken by the federal government in the 1920s disputes this claim. Examination of the operations of the federal bureaucracy instead of the rhetoric of politicians demonstrates the existence of decided policy differences between the Hoover and Roosevelt eras. "Efficiency" analogues dominant during the Hoover era were replaced with "direct service-provider" approaches which created a clear distinction between private and public welfare programs. Elements of "continuity" between the two eras have been overdrawn. Background is provided for increased understanding of some of the policy implications of America's contemporary welfare debate—particularly about "rehabilitation" strategies and/or rationales for action in the social welfare field.  相似文献   
22.
This note uses the Theorem of the Alternative to prove new results on the implementability of general, asymmetric auctions, and to provide simpler proofs of known results for symmetric auctions. The tradeoff is that type spaces are taken to be finite.  相似文献   
23.
The purpose of this paper is to analyze strategic behavior of vertically integrated firms when there is downstream entry, taking into account the balance between competition in the market and competition for the market. This analysis can serve to explain diverse distributional structures, including the coexistence of vertically integrated firms and independent retailers. And it shows that the relative efficiency of downstream entrants and the level of competition among incumbents are two major factors in determining equilibrium configuration.  相似文献   
24.
This study investigates price relationships between organic and conventional carrots, tomatoes, and lettuce in the U.S. utilizing Nielsen scanner data from 2006–2015. We employ a threshold vector error correction model (TVECM), threshold vector autoregressive model (TVAR), and threshold cointegration test to test whether market integration exists between organic and conventional vegetables as well as the existence of asymmetric price transmission. The results find positive long-run relationships between organic and conventional prices of carrots and tomatoes and show the existence of asymmetric price transmission in price pairs of lettuce and tomatoes. Our findings suggest that the price relationship between organic and conventional vegetables varies by characteristics, such as shelf life, volatility in the price premium, and substitutability.  相似文献   
25.
We find that positive excess (strong) analyst coverage is associated with overvaluation and low future returns. This finding is consistent with the view that excessive analyst coverage, driven by investment banking incentives and analyst self-interests, raises investor optimism causing share prices to trade above fundamental value. However, weak analyst coverage causes stocks to trade below fundamental values. This finding indicates that investors tend to believe that these firms are more likely to be plagued by information asymmetries and agency problems. The results remain robust after controlling for the possible endogenous nature of analyst coverage and analysts' self-selection bias.  相似文献   
26.
This paper shows that the firm has an incentive to issue multiple classes of debt that are differentiated by seniority to enhance securityholder tax-timing option values. The analysis establishes that there is at least one mix of senior and junior debt that maximizes the tax option gain from having multiple priority classes of debt. An analytic example provides specifications for the optimal amount of leverage and the optimal mix of senior and junior debt. Relative to the case of only one class of debt, a multiple debt priority structure increases the optimal amount of corporate leverage.  相似文献   
27.
What do we know about technology and rights? This article provides a fairly comprehensive overview of current issues regarding this topic. We explore and analyse a wide spectrum of rights that are challenged in this current era of technological convergence. We use the United States Bill of Rights as an example of the vulnerability of legal protections for rights against particular political and technological changes in this post 9-11 climate. New streams of rights acting as a safeguard against further incursions of technology into civil liberties are explored. We also address intellectual property rights and international trends in copyright, patent and trademark laws. We question whether these issues of technology and rights have a place in current technological literacy scenarios.  相似文献   
28.
This paper examines the valuation effect of discretionary accruals for Japanese firms, taking into account the book value of equity. Consistent with US evidence, the Japanese market prices discretionary accruals, indicating that discretionary accruals enhance the value relevance of reported earnings. This value relevance is lower for cross-held firms, consistent with the view that cross-business shareholding aggravates tunneling or managerial opportunism through discretionary accounting choices. On the other hand, foreign shareholding and bond financing provide effective monitoring on managerial discretion of profit firms to enhance the valuation of discretionary accruals.  相似文献   
29.
A plethora of governance measures has been developed to assess governance capacity in different countries. Choosing one indicator over another involves discretionary decision issues. This article presents a new unified measure of governance capacity for the administrative and political dimensions. The unified measure provides a more accurate understanding of governance than single indices.  相似文献   
30.
This article investigates the patterns of vertical specialization in trade among China, Japan and Korea, and the effects of real exchange rate fluctuations under a multistage production process. By extending the models of Yi (2003, 2010), we derive two distinct features of vertical specialization and test them using Time-Varying Parameter (TVP) VAR. We find that a positive shock to China’s final good consumption increases the intermediate goods trade between Korea and China, with expanding magnitude over time. In addition, the positive effect of a real exchange rate depreciation on intermediate goods trade is strengthened through the competitiveness-enhancing channel, with this effect being more pronouncing in Korea-China trade than in Korea-Japan trade.  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