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   5495篇
  免费   141篇
  国内免费   1篇
财政金融   1208篇
工业经济   467篇
计划管理   940篇
经济学   1044篇
综合类   80篇
运输经济   46篇
旅游经济   84篇
贸易经济   974篇
农业经济   304篇
经济概况   488篇
邮电经济   2篇
  2021年   29篇
  2020年   69篇
  2019年   87篇
  2018年   98篇
  2017年   96篇
  2016年   110篇
  2015年   66篇
  2014年   110篇
  2013年   644篇
  2012年   165篇
  2011年   175篇
  2010年   155篇
  2009年   176篇
  2008年   182篇
  2007年   160篇
  2006年   167篇
  2005年   139篇
  2004年   137篇
  2003年   147篇
  2002年   169篇
  2001年   133篇
  2000年   116篇
  1999年   135篇
  1998年   106篇
  1997年   106篇
  1996年   100篇
  1995年   96篇
  1994年   81篇
  1993年   86篇
  1992年   79篇
  1991年   69篇
  1990年   69篇
  1989年   66篇
  1988年   67篇
  1987年   63篇
  1986年   75篇
  1985年   98篇
  1984年   91篇
  1983年   89篇
  1982年   74篇
  1981年   77篇
  1980年   79篇
  1979年   60篇
  1978年   72篇
  1977年   83篇
  1976年   45篇
  1975年   48篇
  1974年   55篇
  1973年   38篇
  1972年   30篇
排序方式: 共有5637条查询结果,搜索用时 31 毫秒
71.
72.
A decision model involving discriminant analysis provides a method by which both upper and middle managers can avoid some pitfalls that are likely to result in the substantially subjective process of pertbrmance evaluation of profit centers. It is designed to provide more objective, more timely, and possibly more accurate information. The model is not designed to estimate the return on investment for a profit center. The resulting discriminate score provides a direct evaluation of a profit center’s management.  相似文献   
73.
Election forecasting has become a fixture of election campaigns in a number of democracies. Structural modeling, the major approach to forecasting election results, relies on ‘fundamental’ economic and political variables to predict the incumbent’s vote share usually a few months in advance. Some political scientists contend that adding vote intention polls to these models—i.e., synthesizing ‘fundamental’ variables and polling information—can lead to important accuracy gains. In this paper, we look at the efficiency of different model specifications in predicting the Canadian federal elections from 1953 to 2015. We find that vote intention polls only allow modest accuracy gains late in the campaign. With this backdrop in mind, we then use different model specifications to make ex ante forecasts of the 2019 federal election. Our findings have a number of important implications for the forecasting discipline in Canada as they address the benefits of combining polls and ‘fundamental’ variables to predict election results; the efficiency of varying lag structures; and the issue of translating votes into seats.  相似文献   
74.
Although there are many conceptions of Justice, these different perceptions can provide many interesting insights into a business person's ethical standards as well as that person's decision-making processes. Using the Bishops' Pastoral Letter on the U.S. Economy as the basis for asking questions about justice, twenty-four business executives were interviewed about their conception of justice. An analysis of these interviews reveals that this group of businesspeople operated under very different conceptions of Justice at the Macroenvironmental and Microenvironmental levels. This result has some interesting implications not only for those scholars concerned with business ethics but for everyone who has a stake in business education.Men are called good, chiefly on account of their Justice. Cicero, 56 B.C. Ideology is applied philosophy. Lodge, 1986 Richard McGowan, S. J. is an Assistant Professor of Operations and Strategic Management at Boston College. His research focus involves examining both the rationale behind business and public policy decisions as well as determining the effectiveness of these policy measures. Some of his recent publications include Deciphering the Japanese Import Quota, Policy Studies Journal (1988) and Public Policy Measures and Cigarette Sales: An ARIMA Intervention Analysis Study JAI Social Issues Management Volume (1989).  相似文献   
75.
76.
This paper examines the concept of sustainability and its implications for environmental policy analysis. It builds on the premise that present society holds a moral obligation to pass on a world of undiminished life opportunities to members of future generations. Maintaining life opportunities, in turn, can be achieved by maintaining or improving a diverse set of resources and capabilities that support a person's freedom to define and pursue her own conception of the good life. On an operational level, this framework points to the following guideline for environmental policy: Protecting the rights of future generations requires either the conservation of environmental resources or compensatory measures (including the provision of substitute technologies) that ensure the fair and proportionate sharing of net benefits over intergenerational time scales. In this framework, resource depletion is permissible only if (with reasonable certainty) it would generate a Pareto improvement relative to a baseline scenario involving strict resource conservation.  相似文献   
77.
How should social scientists, inclined to an evolutionary theory of aspects of human culture like science, technology, business organization and practice, react to proposals that they embrace a “Universal Darwinism”? The most prominent variety of Universal Darwinism argues for close counterparts between the variables and mechanisms of cultural evolution and biological evolution, for example proposing the concept of “memes” as units of culture. Other Universal Darwinists propose, more flexibly, that human culture and biological species both change over time through a process that involves variation and selection, but that the details of the processes may be very different. This essay argues that the narrower form of Universal Darwinism should not be acceptable to social scientists. The differences in the details of cultural evolution and biological evolution are considerable. On the other hand, if Universal Darwinism provides a roomy intellectual tent welcoming scholars studying a variety of topics, with the unifying element being a dynamic theory involving variation and selection, but with the key variables and mechanisms being recognized as perhaps differing greatly between biology and human culture, we can be happy in that camp. Evolutionary Social Science and Universal Darwinism.  相似文献   
78.
One main problem with both acquisitions and alliances is separating the attractive partners from the rest. An additional problem with alliances is getting each partner to provide its best assets and efforts. One solution offered for the acquisition adverse selection problem is due diligence through a pre-acquisition alliance; however, none of the papers recommending such an approach analyze the alliance adverse selection and moral hazard problems. This paper presents the first formal model of joint venturing as acquisition due diligence, detailing how the joint solution works and under what conditions.revised version received October 20, 2003  相似文献   
79.
Richard Baldwin 《Empirica》1993,20(2):129-145
By allowing a freer interplay of market forces, the market liberalization involved in closer economic integration can improve the efficiency of productive factors. This permits greater output from the same inputs. A side effect of this improved efficiency is an improved investment climate in the integrating region. This in turn will result in a higher investment rate, thereby augmenting the initial output gains by providing the economy with more resources. The same sort of induced capital formation can also boost investment in human capital and knowledge capital. Primitive calculations of the size and timing of these induced capital formation can be made using an aggregate GDP function. A rough approximation of the adjustment path shows that the extra investment will stimulate growth for decades, although half of the total effect will occur in the first 10 to 50 years.  相似文献   
80.
Cost Heterogeneity and the Potential Savings from Market-Based Policies   总被引:10,自引:0,他引:10  
Policy makers and analysts are often faced with situations where it is unclear whether market-based instruments hold real promise of reducing costs, relative to conventional uniform standards. We develop analytic expressions that can be employed with modest amounts of information to estimate the potential cost savings associated with market-based policies, with an application to the environmental policy realm. These simple formulae can identify instruments that merit more detailed investigation. We illustrate the use of these results with an application to nitrogen oxides control by electric utilities in the United States.  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