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   138篇
  免费   10篇
财政金融   23篇
工业经济   5篇
计划管理   28篇
经济学   22篇
贸易经济   40篇
农业经济   11篇
经济概况   4篇
邮电经济   15篇
  2022年   2篇
  2021年   1篇
  2020年   2篇
  2019年   5篇
  2018年   6篇
  2017年   7篇
  2016年   5篇
  2015年   8篇
  2014年   6篇
  2013年   4篇
  2012年   14篇
  2011年   11篇
  2010年   9篇
  2009年   2篇
  2008年   11篇
  2007年   5篇
  2006年   6篇
  2005年   4篇
  2004年   2篇
  2003年   7篇
  2002年   1篇
  2001年   3篇
  2000年   3篇
  1999年   2篇
  1997年   1篇
  1996年   1篇
  1994年   1篇
  1993年   1篇
  1990年   1篇
  1986年   1篇
  1985年   1篇
  1984年   2篇
  1981年   2篇
  1978年   1篇
  1977年   1篇
  1976年   3篇
  1975年   4篇
  1972年   1篇
  1961年   1篇
排序方式: 共有148条查询结果,搜索用时 15 毫秒
81.
The Asia–Pacific Economic Cooperation (APEC) has the potential to become the world's largest free trade area, encompassing both developed and developing countries. At the same time environmental standards vary substantially in the region. A multilateral computable general equilibrium (CGE) model combined with environmental sub–models simulates the environmental effects of trade and environmental policy changes. The simulations show: (i) Even drastic reductions in trade barriers have only a small effect on pollution; (ii) Low environmental standards relative to trade partners do not necessarily result in increased pollution when trade is liberalised; (iii) Unilaterally raising environmental standards does not crowd out pollution to countries with laxer standards.  相似文献   
82.
Cooperation with other organizations increases the innovation performance of organization, especially for small and medium‐sized enterprises (SMEs) as they encounter liabilities of “smallness” (e.g., limited financial resources, and manpower). In the medical devices sector, collaboration with external partners for NPD becomes increasingly important due to the complexity of the products and the development process. About 80% of companies in this sector are SMEs. These companies operate in a highly regulated sector, which affects the organization of the external network required for the new product development (NPD) process. SMEs are practicing extensively open innovation activities, but in practice face a number of barriers in trying to apply open innovation. This paper examines multiple network characteristics simultaneously in relation to innovation performance and thereby aligns with and builds further on configuration theory. Configuration theory posits that for each set of network characteristics, there exists an ideal set of organizational characteristics that yields superior performance. In this research, the systems approach to fit is used. Fit is high to the extent that an organization is similar to an ideal profile along multiple dimensions. This ideal profile represents the network profile that the 15% highest performing companies use. It is argued that the smaller the distance between the ideal profile and the network profile that is used, the higher the performance. The objective of this research is (1) to examine the relation between the ideal profile and innovation performance and (2) to examine which organization of the network profile is related to high innovation performance. Quantitative survey data (n = 60, response rate 61.9%) form the core of this research. The quantitative results are clarified and have been triangulated with qualitative interview data (n = 50). Our findings suggest the presence of an “ideal” NPD network profile (in terms of goal complementarity, resource complementarity, fairness trust, reliability trust, and network position strength): the more a company's NPD network profile differs from this ideal profile, the lower the innovation performance. In addition, the results of our study indicate that the NPD network profiles of successful and less successful SMEs in the medical devices sector significantly differ in terms of “goal complementarity,” while this is less the case for trust and resource complementarity labeled distinctive by previous research. Finally, results show that a relatively closed, focused, and consistent “business‐like” NPD networking approach, which is characterized by result orientation and professionalism, is related to high innovation performance. It is recommended that SMEs in the medical devices sector aiming to distinguish themselves from competitors in terms of innovation performance focus on goal complementarity while adopting such a business‐like attitude toward their NPD network partners.  相似文献   
83.
The suppliers of new television services welcome the digitalization of television in Germany because it may boost the establishing of interactive television and open up new business options. So far research into the potential of such services has yielded mixed results. However, most studies so far have only investigated the general intention to adopt new services and did not regard real adoption. Moreover all German studies follow a strict cross-sectional design and are therefore unable to detect the dynamics of the process of diffusion. We combine data on the adoption of new services from a longitudinal study with data from a quasi-experimental design in order to dig deeper into the dynamics of the diffusion of innovations in the television sector. We identify key events – besides other well-known influences – as crucial factors in the process of the diffusion of media innovations. Key events alter the process by activating the communication about innovations.  相似文献   
84.
Drought Tolerant Maize Varieties (DTMV) and Rainfall Index Insurance (RII) are potential complements, though with limited empirical basis. We employ a multivariate spatial framework to investigate the potential for bundling DTMV with a simulated multi-site and multi-environment RII, designed to insure against mild, moderate and severe drought risk. We use yield data from on-farm trials conducted by the International Maize and Wheat Improvement Center (CIMMYT) and partners over 49 locations in Eastern and Southern Africa spanning 8 countries and 5 mega-environments (dry lowland, dry mid altitude, wet lower mid altitude, low wetland and wet upper mid altitude) in which 19 different improved maize varieties including DTMV were tested at each location. Spatially correlated daily rainfall data are generated from a first-order two-state Markov chain process and used to calibrate the index and predict yields with a hierarchical Bayes multivariate spatial model. Results show high variation in the performance and benefits of different bundles which depend on the maize variety, the risk layer insured, and the type of environment, with high chances of selecting a sub-optimal and unattractive contract. We find that complementing RII with a specific DTMV produces contracts with lower premiums and higher guaranteed returns especially in dry lowland increasing the chances of scaling up RII within this environment.  相似文献   
85.
This paper investigates extrinsic motivation as a determinant of knowledge exchange among employees in sales teams. Applying a social network approach, we study different forms of knowledge-exchange behaviors from the perspective of a focal employee and from the perspective of the dyad. From the focal employees' perspective, we disentangle knowledge seeking from knowledge providing, and argue that these two behaviors are affected differently by employees' extrinsic motivation. From the dyad perspective, we take similarity in motivation of tied-to employees and reciprocity of exchange ties into account. To test our hypotheses, we apply exponential random graph models to data gathered from 138 employees in five different sales teams distributed across three companies in Central Europe. The results of our analysis from the focal employees' perspective show that extrinsically motivated employees generally engage in less knowledge exchange. The dyad perspective further highlights that sales employees proceed purposefully when they exchange knowledge with coworkers. For instance, two employees' relative levels of extrinsic motivation determine their willingness to engage in reciprocal knowledge exchange. We discuss the implications of our findings for research on the microfoundations of organizational knowledge management and draw conclusions concerning HRM practices used to foster extrinsic motivation, thereby affecting knowledge exchange.  相似文献   
86.
This article explores managers’ views on various ways in which business schools can contribute to providing solid ethics education to their students, who will ultimately become the next generation of business leaders. One thousand top level managers of Icelandic firms were approached and asked a number of questions aimed at establishing their view on the relationship between ethics education and the role of business schools in forming and developing business ethics education. Icelandic businesses were badly hurt by the 2008 crisis, and therefore Iceland provides an interesting foundation for an empirical study of this sort as the aftermath of the crisis has encouraged managers to consciously reflect on the way their business was and should be conducted. Based on the results of the survey, a few main themes have developed. First, it appears that according to practicing managers, business schools should not be held responsible for employees’ unethical behavior. Nevertheless, managers believe that business schools should assist future employees in understanding ethics by including business ethics in teaching curricula. Second, managers believe that the workplace is not where ethics are learned, while also insisting that former students should already have strong ethical standards when entering the workplace. Third, managers call for business schools not only to contribute more to influencing students’ ethical standards, but also to reshape the knowledge and capabilities of practicing managers through re-training and continuous education. Based on the results of the study, the article also offers some recommendations on how to begin reformulating the approach to business ethics education in Iceland, and perhaps elsewhere.  相似文献   
87.
88.
Die Budgetierung ist aufgrund der minderen Komplexit?t sowie der übergreifenden Sichten im Controlling ein zentrales Steuerungsinstrumentarium zur Kontrolle der Unternehmenszielerreichung.  相似文献   
89.
We investigate under which circumstances bonus payments for managers are accepted as fair, asking workers to judge several hypothetical scenarios. We find that perceptions vary widely with the characteristics of the situation, as well as with the workers’ general attitudes.  相似文献   
90.
Olaf Helmer 《Futures》1975,7(1):3-14
Is there an identity crisis in futures research ? The author reviews the character of the discipline in the light of its ten years of development and maintains that futures research is empirical, “pre-scientific” and in the category of operations research. The scope for a scientific approach is therefore in forming a coherent methodological body of principles. The author identifies specific tasks in 21 areas, related to data collection, model construction, experimentation, systems analysis, exploratory and normative applications, which seem to him to be particularly in need of such attention.  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