全文获取类型
收费全文 | 3624篇 |
免费 | 137篇 |
国内免费 | 2篇 |
专业分类
财政金融 | 536篇 |
工业经济 | 124篇 |
计划管理 | 777篇 |
经济学 | 646篇 |
综合类 | 21篇 |
运输经济 | 20篇 |
旅游经济 | 49篇 |
贸易经济 | 1134篇 |
农业经济 | 50篇 |
经济概况 | 261篇 |
邮电经济 | 145篇 |
出版年
2023年 | 24篇 |
2022年 | 32篇 |
2021年 | 39篇 |
2020年 | 55篇 |
2019年 | 57篇 |
2018年 | 177篇 |
2017年 | 174篇 |
2016年 | 191篇 |
2015年 | 121篇 |
2014年 | 154篇 |
2013年 | 422篇 |
2012年 | 224篇 |
2011年 | 166篇 |
2010年 | 167篇 |
2009年 | 131篇 |
2008年 | 155篇 |
2007年 | 102篇 |
2006年 | 119篇 |
2005年 | 131篇 |
2004年 | 62篇 |
2003年 | 79篇 |
2002年 | 82篇 |
2001年 | 68篇 |
2000年 | 49篇 |
1999年 | 33篇 |
1998年 | 34篇 |
1997年 | 28篇 |
1996年 | 31篇 |
1995年 | 25篇 |
1994年 | 19篇 |
1993年 | 34篇 |
1992年 | 23篇 |
1990年 | 25篇 |
1989年 | 19篇 |
1988年 | 20篇 |
1987年 | 24篇 |
1986年 | 20篇 |
1985年 | 37篇 |
1984年 | 27篇 |
1983年 | 22篇 |
1982年 | 24篇 |
1981年 | 22篇 |
1980年 | 19篇 |
1978年 | 20篇 |
1976年 | 23篇 |
1975年 | 21篇 |
1973年 | 18篇 |
1972年 | 18篇 |
1971年 | 24篇 |
1970年 | 19篇 |
排序方式: 共有3763条查询结果,搜索用时 15 毫秒
61.
62.
63.
Patent-based inventor profiles as a basis for human resource decisions in research and development 总被引:3,自引:0,他引:3
Profiles of inventors' technological competence are a valuable source of information for decision-making in research and development (R&D) management, e.g. concerning inventor assessment, human resource development and R&D team-building. In the following exposition, a new method of inventor profiling will be put forward, which is based in particular on semantic patent analysis and multidimensional scaling. First, in the course of semantic patent analysis, specialized software, equipped with a natural language processor, reads the patent text transferring the contents into a subject–action–object–format (SAO). The extracted SAO structures are then used to create similarity matrices for patents or patent sets, respectively, according to a specific similarity value. Subsequently, an inventor competence map can be produced by means of multidimensional scaling.
The benefits of this method for R&D-related issues in human resource management will be illustrated by the example of a German mechanical engineering company. Two distinct types of profiles were generated and tested: (i) the profile of a single key inventor and (ii) a profile of key inventor sets. The single key inventor profile gives information on the range of competence, i.e. the homogeneity or heterogeneity of a certain inventor's competences, providing far more detailed insights than resorting to bibliographic data like international patent classification (IPC) classes or citations, whereas the latter kind of profile establishes the position of a certain key inventor in relation to others, helping to highlight specific groups of inventors and their domains. These results are clearly apt to support human resource management. 相似文献
The benefits of this method for R&D-related issues in human resource management will be illustrated by the example of a German mechanical engineering company. Two distinct types of profiles were generated and tested: (i) the profile of a single key inventor and (ii) a profile of key inventor sets. The single key inventor profile gives information on the range of competence, i.e. the homogeneity or heterogeneity of a certain inventor's competences, providing far more detailed insights than resorting to bibliographic data like international patent classification (IPC) classes or citations, whereas the latter kind of profile establishes the position of a certain key inventor in relation to others, helping to highlight specific groups of inventors and their domains. These results are clearly apt to support human resource management. 相似文献
64.
Mario V. Wüthrich 《Scandinavian actuarial journal》2018,2018(6):465-480
Machine learning techniques make it feasible to calculate claims reserves on individual claims data. This paper illustrates how these techniques can be used by providing an explicit example in individual claims reserving. 相似文献
65.
66.
The literature on organizational learning asserts that external learning is often limited geographically and technologically. We scrutinize to what extent organizations acquire external knowledge by accessing external knowledge repositories. We argue that professional service firms (PSFs) grant access to nonlocalized knowledge repositories and thereby not only facilitate external learning but also help to overcome localization. Focusing on patent law firms, we test our predictions using a unique dataset of 544,820 pairs of European patent applications. Analyzing patterns of knowledge flows captured in patent citations, we find that accessing a PSF's repository facilitates the acquisition of external knowledge. As the effect is more pronounced for knowledge that is distant to a focal organization, we conclude that having access to a knowledge repository compensates for localization disadvantages. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
67.
68.
Rüdiger Kabst 《Journal of Small Business Management》2014,52(3):451-476
Despite considerable research, the relationship between foreign direct investment (FDI) and domestic employment is still inconclusive. The present paper contributes to extant research by providing differentiated findings on the FDI and domestic employment relationship. We examine how horizontal and vertical FDI impact domestic employment and how the effects are contingent on the ownership structure of the firm. Testing hypotheses on a dataset of 1,079 German small and medium‐sized enterprises (SMEs) shows that horizontal FDI has a positive influence, whereas vertical FDI has a negative influence on domestic employment. Furthermore, domestic downsizing due to the establishment of foreign production subsidiaries is less severe in owner‐managed SMEs. 相似文献
69.
High-quality science communication to the public depends to a large extent on the way research findings are translated into comprehensible language and common speech. In this communicative process, a reasonable evaluation of the trustworthiness of empirical findings, based on an adequate interpretation of statistical analyses, is absolutely crucial. This paper’s authors argue that the credibility of science is jeopardised by two compromising developments within science itself: on the one hand, an inflation of ostensible empirical evidence related to misuses and misinterpretations of the concept of statistical significance, and, on the other, a sensationalist overvaluation of the results of single studies instead of an adequate representation of the available body of evidence in a given scientific field. 相似文献
70.
Economics and business students regularly behave less prosocially than others. Can ethics training reverse this tendency? Results from a repeated public goods experiment reveal that it can. Students who attend an interactive lecture on social dilemmas show significantly more cooperation than others. However, the lecture does not appear to increase the incidence of reciprocal behavior. As many current social problems qualify as social dilemmas, this result stresses the importance of ethics training for policy makers and curriculum designers alike in overcoming the incentive structure of social dilemmas. 相似文献