全文获取类型
收费全文 | 28645篇 |
免费 | 911篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 4832篇 |
工业经济 | 1945篇 |
计划管理 | 4891篇 |
经济学 | 6955篇 |
综合类 | 286篇 |
运输经济 | 262篇 |
旅游经济 | 415篇 |
贸易经济 | 5208篇 |
农业经济 | 1314篇 |
经济概况 | 3361篇 |
信息产业经济 | 3篇 |
邮电经济 | 85篇 |
出版年
2023年 | 206篇 |
2021年 | 245篇 |
2020年 | 449篇 |
2019年 | 637篇 |
2018年 | 828篇 |
2017年 | 927篇 |
2016年 | 888篇 |
2015年 | 543篇 |
2014年 | 812篇 |
2013年 | 3270篇 |
2012年 | 1100篇 |
2011年 | 1117篇 |
2010年 | 971篇 |
2009年 | 1045篇 |
2008年 | 933篇 |
2007年 | 787篇 |
2006年 | 742篇 |
2005年 | 718篇 |
2004年 | 600篇 |
2003年 | 606篇 |
2002年 | 498篇 |
2001年 | 564篇 |
2000年 | 513篇 |
1999年 | 473篇 |
1998年 | 518篇 |
1997年 | 463篇 |
1996年 | 460篇 |
1995年 | 388篇 |
1994年 | 402篇 |
1993年 | 383篇 |
1992年 | 392篇 |
1991年 | 405篇 |
1990年 | 365篇 |
1989年 | 283篇 |
1988年 | 281篇 |
1987年 | 288篇 |
1986年 | 264篇 |
1985年 | 380篇 |
1984年 | 380篇 |
1983年 | 346篇 |
1982年 | 310篇 |
1981年 | 304篇 |
1980年 | 302篇 |
1979年 | 286篇 |
1978年 | 235篇 |
1977年 | 189篇 |
1976年 | 193篇 |
1975年 | 175篇 |
1974年 | 164篇 |
1973年 | 158篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
11.
We explore the innovation performance benefits of alliances for spin-off firms, in particular spin-offs either from other firms or from public research organizations. During the early years of the emerging combinatorial chemistry industry, the industry on which our empirical analysis focuses, spin-offs engaged in alliances with large and established partners, partners of similar type and size, and with public research organizations, often for different reasons. We seek to understand to what extent alliances of spin-offs with other firms (either large- or small- and medium-sized firms) affected their innovation performance and also how this performance may have been affected by their corporate or public research background. We find evidence that in general alliances of spin-offs with other firms, in particular alliances with large firms, increased their innovation performance. Corporate spin-offs that formed alliances with other firms outperformed public research spin-offs with such alliances. This suggests that, in terms of their innovation performance, corporate spin-offs that engaged in alliances with other firms seemed to have benefitted from their prior corporate background. Interestingly, it turns out that the negative impact of alliances on the innovation performance of public research spin-offs was largely affected by their alliances with small- and medium-sized firms. 相似文献
12.
H.J. Christian van der Krift Josette M.P. Gevers Arjan J. van Weele 《Journal of Purchasing & Supply Management》2021,27(3):100698
Despite the importance of good collaborative relationships in interorganisational projects, clients and contractors often develop adversarial relationships due to perceptual distance about key project issues. In this case study research, we investigated how perceptual distance emerges and changes over time, and how the collaborative relationship between client and contractor develops alongside these dynamics. In this exploration, we built upon agency theory and stewardship theory as complementary perspectives for understanding client-contractor collaborative relationships. We gathered quantitative and qualitative data in two projects, conducting three assessments in about one year. We found that perceptual distance increased and decreased over time, and that a reduction was typically associated with the collaborative relationship being characterized by stewardship rather than agency. These findings suggest that a regular assessment and evaluation of partners’ perceptions of critical project issues is warranted to timely detect and counteract perceptual distance. Moreover, partners would best adopt a stewardship orientation to reduce perceptual distance, although this may take considerable effort given the distributive nature of many pre-project negotiations. 相似文献
13.
Domènec Melé 《Business ethics (Oxford, England)》2021,30(4):772-783
While many studies on the Fourth Industrial Revolution (FIR) focus on efficiency, productivity and economic progress, only a few have considered its ethical aspects. This article tries to contribute to filling this vacuum by providing a comprehensive approach to ethical risks at the workplace. Drawing upon Catholic social teaching (CST)—addressed to all people of good will—it analyzes ethical aspects at the workplace posited by the FIR, and more particularly by Industry 4.0, which is at the core of this revolution. CST emphasizes the dignity of the worker and the necessity to flourish at the workplace. While robots, artificial intelligence, and interconnected technologies are only instrumental, the real subject of work is the worker. This casts specific light on the ethical issues analyzed, including effects on employment, wages and inequality, human quality treatment, relational aspects, safety and health, surveillance on employees, and meaningful work. 相似文献
14.
Rúbia Oliveira Corrêa Eduardo Veiga Bueno Heitor Takashi Kato Luiz Marcos de Oliveira Silva 《Managerial and Decision Economics》2019,40(1):3-15
Studies on dynamic managerial capabilities still have a rather theoretical nature, and there is great difficulty in finding a valid, reliable instrument to measure this construct. The present study contributes to solving this problem: It aims to develop and validate a scale to measure dynamic managerial capabilities. In this investigation, we develop a scale for three factors related to dynamic managerial capabilities: human capital, managerial cognition (already described in the literature), and relationship networks. The prominent finding in this research is the factor that is referred to here as relationship networks. 相似文献
15.
We investigate the roots of scientists' perceptions of the impact of their work by examining stable psychological characteristics such as personality traits. An analysis of personality traits highlights the effects of policies related to gender equality, allocation of research time and skills acquisition. It improves our understanding of the conflicts related to scientists’ perceptions of the impact of their research on beneficiaries. For example, conscientiousness increases the perceived impact on clinical beneficiaries, but reduces the perceived impact on industrial beneficiaries. Organizational scientific freedom increases the effects of personality traits on perceived impact on beneficiaries such that scientists affiliated to a university are less likely than colleagues working in other research settings to perceive the simultaneous impact of their work on both industrial and clinical beneficiaries. 相似文献
16.
González-Avella Juan Carlos Lugo Haydée San Miguel Maxi 《Journal of Economic Interaction and Coordination》2019,14(1):203-214
Journal of Economic Interaction and Coordination - This paper explores a situation in which a population split into two groups attempts to achieve the socially efficient outcome of a coordination... 相似文献
17.
Rubén Loaiza‐Maya Michael S. Smith Worapree Maneesoonthorn 《Journal of Applied Econometrics》2018,33(3):332-354
We propose parametric copulas that capture serial dependence in stationary heteroskedastic time series. We suggest copulas for first‐order Markov series, and then extend them to higher orders and multivariate series. We derive the copula of a volatility proxy, based on which we propose new measures of volatility dependence, including co‐movement and spillover in multivariate series. In general, these depend upon the marginal distributions of the series. Using exchange rate returns, we show that the resulting copula models can capture their marginal distributions more accurately than univariate and multivariate generalized autoregressive conditional heteroskedasticity models, and produce more accurate value‐at‐risk forecasts. 相似文献
18.
Emilio Said Ahmed Bel Hadj Ayed Damien Thillou Jean-Jacques Rabeyrin Frédéric Abergel 《Quantitative Finance》2021,21(1):69-84
This paper deals with a fundamental subject that has seldom been addressed in recent years, that of market impact in the options market. Our analysis is based on a proprietary database of metaorders—large orders that are split into smaller pieces before being sent to the market—on one of the main Asian markets. In line with our previous work on the equity market [Said, E., Bel Hadj Ayed, A., Husson, A. and Abergel, F., Market impact: A systematic study of limit orders. Mark. Microstruct. Liq., 2018, 3(3&4), 1850008.], we propose an algorithmic approach to identify metaorders, based on some implied volatility parameters, the at the money forward volatility and at the money forward skew. In both cases, we obtain results similar to the now well-understood equity market: Square-Root Law, Fair Pricing Condition and Market Impact Dynamics. 相似文献
19.
20.
Journal of Business Ethics - Blockchain is an open digital ledger technology that has the capability of significantly altering the way that people operations (i.e. human resource management)... 相似文献