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   1028篇
  免费   43篇
财政金融   122篇
工业经济   38篇
计划管理   149篇
经济学   352篇
综合类   4篇
运输经济   36篇
旅游经济   22篇
贸易经济   221篇
农业经济   60篇
经济概况   67篇
  2023年   15篇
  2022年   8篇
  2021年   18篇
  2020年   21篇
  2019年   51篇
  2018年   56篇
  2017年   63篇
  2016年   55篇
  2015年   32篇
  2014年   52篇
  2013年   161篇
  2012年   54篇
  2011年   73篇
  2010年   57篇
  2009年   59篇
  2008年   59篇
  2007年   30篇
  2006年   24篇
  2005年   25篇
  2004年   15篇
  2003年   16篇
  2002年   15篇
  2001年   10篇
  2000年   10篇
  1999年   12篇
  1998年   7篇
  1997年   4篇
  1996年   4篇
  1995年   4篇
  1994年   3篇
  1993年   4篇
  1992年   2篇
  1991年   3篇
  1988年   4篇
  1984年   3篇
  1983年   1篇
  1982年   5篇
  1981年   3篇
  1980年   1篇
  1979年   2篇
  1978年   3篇
  1977年   5篇
  1976年   3篇
  1975年   5篇
  1974年   5篇
  1973年   1篇
  1971年   2篇
  1969年   1篇
  1964年   1篇
  1947年   1篇
排序方式: 共有1071条查询结果,搜索用时 15 毫秒
1.
We propose two novel approaches for feature selection and ranking tasks based on simulated annealing (SA) and Walsh analysis, which use a support vector machine as an underlying classifier. These approaches are inspired by one of the key problems in the insurance sector: predicting the insolvency of a non‐life insurance company. This prediction is based on accounting ratios, which measure the health of the companies. The approaches proposed provide a set of ratios (the SA approach) and a ranking of the ratios (the Walsh analysis ranking) that would allow a decision about the financial state of each company studied. The proposed feature selection methods are applied to the prediction the insolvency of several Spanish non‐life insurance companies, yielding state‐of‐the‐art results in the tests performed. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   
2.
Current practices for the treatment of the physically and/or mentally handicapped prescribe meaningful job activity as a means towards both a more fulfilling life and societal integration. In many countries, these practices have facilitated the development of many Sheltered Work Centres for Disabled.In the case study presented, a reengineering process is done starting from individual workplaces where only certain workers were capable of assembling the entire product, and finishing with an assembly line implementation. It is revealed how the traditional division of work in single tasks, typical in assembly lines, becomes a perfect tool for making certain worker disabilities invisible, providing new jobs for disabled people; always taking into account certain special constraints that are analysed.  相似文献   
3.
Organizations are becoming more and more aware of how important it is to strengthen the competences of their project managers. This fact acquires greater relevance in the development and international cooperation sector because of the need to have qualified professionals who can take up the challenges and address the specific demands of an ever more demanding and constantly evolving sector. This article provides the results of research that more than 100 experts in project management and administration participated in to detect which competences are the most relevant in this context.  相似文献   
4.
The chinampas (raised beds) of Xochimilco, Mexico City, are highly productive, traditional wetland agricultural systems, which were able to feed most of the population in pre-hispanic times. There is a strong trend to substitute chinampas with plastic greenhouses for flower production, which creates negative impacts in the landscape, environment and culture. This study compares the environmental and socio-economic sustainability of chinampas and greenhouses, at both the farm and regional levels, using the MESMIS framework. Even though the results show that greenhouses are more profitable, the contribution of chinampas to ecosystem services cannot be substituted by greenhouses, as tree cover is lost, canals are filled and food is not provided. Greenhouses had a higher diversity, but also a higher agrochemical use and are heavily dependent on external inputs and subsidies. Chinampas have shifted from staple crops to commercial horticulture in order to remain a technically viable and economically feasible option for local farmers. However, compensation mechanisms for the provision of ecosystem services are urgently needed if this ancient system is to be maintained. The framework allowed the integration of indicators at both farm and regional scales, combining on-farm surveys with GIS techniques, which could assist in ecosystem service valuation.  相似文献   
5.
This article explores the relationship between milk quota values and economic efficiency in order to analyze government interventions in quota allocations among producers. For this purpose, we estimate quota values using a panel of Spanish dairy farms. Quota values are then decomposed into economic efficiency, price, and scale effects in order to assess the relative influence of these factors. We find that efficiency is important in explaining quota values but is uncorrelated with observable farm characteristics. This casts doubts on the government's ability to allocate quotas to efficient farms.  相似文献   
6.
For a small tariff-imposing country, within the standard two-commodity two-factor model of international trade, this paper reconsiders the implications of an inflow of capital from abroad. When the host country continues to import the capital-intensive good while remaining incompletely specialized, the analysis shows that the capital inflow must reduce host-country welfare, assuming that the foreign capital receives the full (untaxed) value of its marginal product. Under other circumstances considered, however, the inflow may have different consequences for welfare.  相似文献   
7.
Senior managers in emerging markets often strive to ensure that their companies develop sufficient capabilities to confront the needs they encounter in international markets. However, extant research and practice remain unclear as to how senior managers in emerging market companies can approach assessing the needs of their international markets against their own company's capabilities, to aim for a balance between both. This article offers an innovative approach for assessing the needs of international markets against an emerging market company's capabilities. Based on the assessments of 100 senior managers leading emerging market companies, we explain how this approach can provide two key insights. First, evidence of a balance between the needs of international markets and an emerging market company's capabilities, that indicates the company's competitive position is focused; or evidence of an imbalance between the needs of international markets and an emerging market company's capabilities, that indicates the company's competitive position is either vulnerable or overqualified. Second, an understanding of where the gaps between the needs of international markets and an emerging market company's capabilities are, that enables improving the company's competitive position by closing these gaps. Drawing on this approach, we offer an open access tool that allows senior managers in emerging markets to identify and improve their own company's competitive position for internationalization. Using this tool, senior managers can lead their emerging market companies toward a focused competitive position in international markets, providing better chances of successfully capturing potential benefits.  相似文献   
8.
9.
This article analyzes the attitudes of United States business professionals toward the issue of international bribery, and in particular, whether or not having a written code of ethics has an effect on these attitudes. A vignette relating to international bribery from a widely used survey instrument was employed in a nationwide survey of business professionals to gather information on ethical attitudes of respondents. Data were also collected on gender of respondents, whether or not respondents were self-employed, whether or not the respondents’ firms had a written code of ethics, and to what extent the respondents’ firms generated revenues from international operations. Attitudes concerning whether or not international bribery is ever acceptable exhibited wide dispersion. Respondents from firms that have a written code of ethics were significantly less likely to find international bribery acceptable. Firms that generate revenues from international operations were significantly more likely to have a written code of ethics than were firms which did not generate revenues from international operations. Implications of the findings for business policy are discussed. Joseph A. McKinney is Ben H. Williams Professor of International Economics at Baylor University. He was previously on the faculty of the University of Virginia, and has served as visiting professor to universities in Japan, France, the United Kingdom and Canada. His research interests include business ethics, international trade policy, and regional economic integration. Carlos W. Moore is the Edwin W. Streetman Professor of Marketing at Baylor University, where he has been on the faculty for more than 30 years. His research interests include business ethics, marketing and advertising evaluation, and small business strategies. He has done consulting on bank marketing and new product development.  相似文献   
10.
In April 2007, Petróleos de Venezuela S.A. (PDVSA) issued debt for USD 7.5 billion, the largest debt offering to date by a Latin American company. The conditions surrounding this issue, which was denominated and tradable in dollars, but payable in bolivars, were quite special, particularly when considering the strict foreign exchange control system put into place by the Venezuelan government in 2003. The fact that the bond issue attempted to fulfill the dual purpose of offering dollars to local companies and investors in the midst of prevailing exchange rate controls, while helping to finance PDVSA as a company, creates a unique dilemma that is ideal for class discussion. This teaching case provides the information necessary for estimating and proposing a price for PDVSA's bond offer.  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