全文获取类型
收费全文 | 24200篇 |
免费 | 532篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 4655篇 |
工业经济 | 1725篇 |
计划管理 | 3582篇 |
经济学 | 5360篇 |
综合类 | 380篇 |
运输经济 | 176篇 |
旅游经济 | 435篇 |
贸易经济 | 3669篇 |
农业经济 | 1260篇 |
经济概况 | 3434篇 |
信息产业经济 | 1篇 |
邮电经济 | 56篇 |
出版年
2021年 | 140篇 |
2020年 | 250篇 |
2019年 | 417篇 |
2018年 | 500篇 |
2017年 | 506篇 |
2016年 | 526篇 |
2015年 | 289篇 |
2014年 | 541篇 |
2013年 | 2479篇 |
2012年 | 729篇 |
2011年 | 811篇 |
2010年 | 678篇 |
2009年 | 759篇 |
2008年 | 732篇 |
2007年 | 636篇 |
2006年 | 575篇 |
2005年 | 486篇 |
2004年 | 507篇 |
2003年 | 454篇 |
2002年 | 508篇 |
2001年 | 443篇 |
2000年 | 459篇 |
1999年 | 443篇 |
1998年 | 407篇 |
1997年 | 417篇 |
1996年 | 412篇 |
1995年 | 359篇 |
1994年 | 369篇 |
1993年 | 400篇 |
1992年 | 409篇 |
1991年 | 403篇 |
1990年 | 329篇 |
1989年 | 301篇 |
1988年 | 291篇 |
1987年 | 302篇 |
1986年 | 311篇 |
1985年 | 469篇 |
1984年 | 433篇 |
1983年 | 400篇 |
1982年 | 377篇 |
1981年 | 345篇 |
1980年 | 390篇 |
1979年 | 318篇 |
1978年 | 270篇 |
1977年 | 256篇 |
1976年 | 198篇 |
1975年 | 242篇 |
1974年 | 193篇 |
1973年 | 188篇 |
1972年 | 133篇 |
排序方式: 共有10000条查询结果,搜索用时 18 毫秒
991.
We examine the effects of thin trading on the specification of event study tests. Simulations of upper and lower tail tests are reported with and without variance increases on the event date across levels of trading volume. The traditional standardized test is misspecified for thinly traded samples. If return variance is unlikely to increase, then Corrado's rank test provides the best specification and power. With variance increases, the rank test is misspecified. The Boehmer et al. standardized cross-sectional test (Event-study methodology under conditions of event-induced variance, Journal of Financial Economics 30, pp. 253–272) is properly specified, but not powerful, for upper-tailed tests. Lower-tailed alternative hypotheses can best be evaluated using the generalized sign test. 相似文献
992.
河北省外向型经济发展的战略构想 总被引:1,自引:0,他引:1
保定金融高等专科学校课题组 《金融教学与研究》2002,(5):22-24,57
目前河北省的外向型经济,无论对外开放方面,还是对内开放方面,都还比较落后,对全省经济发展的拉动力较弱,促进河北省外向型经济发展,应根据本省的实际情况大力发展劳动密集型产业,发挥外销产品的比较优势,加快高新技术产业的发展步伐,努力实现贸易方式、引资方式和引资结构的多元化;应根据我国和国际的经济战略调整,精心研究制定我省的外向型经济发展战略,并积极改善投资环境。 相似文献
993.
In today's increasingly competitive climate, more and more managers are having to update themselves on the range of factors that determine product innovation success. Such successes can be measured at the project (product) level or at the program level. Axel Johne and Patricia Snelson have prepared a review of factors associated with achieving success in a high proportion of recently developed new products. The authors address practical questions, such as the following: To what extent can product innovation be planned? Should development tasks be scheduled sequentially or in parallel? What is the proper degree of formality in effective new product decision making? What are the optimal organizational arrangements? The article concentrates on recent writings, drawing chiefly from journal articles published after 1980, including a large number from the Journal of Product Innovation Management. Factors contributing to success are ordered according to the now well-known McKinsey 7 Ss framework popularized by Peters and Waterman in their book In Search of Excellence. Detailed development tasks are considered according to the schema advanced by Crawford in his book New Products Management. 相似文献
994.
Workers' rewards and career perspectives often depend on how their supervisors perceive their performance. However, evaluating a worker's performance is often difficult. We develop a model in which a worker is uncertain about his own performance and about his supervisor's ability to assess him. The supervisor gives the worker a performance appraisal aiming to affect both the worker's self‐perception and his own credibility in assessing the performance. We examine how performance appraisals affect the worker's future performance. Our model's predictions are consistent with empirical findings. Supervisors give, on average, “too” positive appraisals, and both positive and negative feedback can (de)motivate workers. 相似文献
995.
996.
Do ongoing networks block out new friends? Reconciling the embeddedness constraint dilemma on new alliance partner addition 下载免费PDF全文
Research Summary: This study addresses a theoretical dilemma regarding how alliance network constraint (reflected by network cohesion) affects a firm’s alliance formation with new partners. Using a network pluralism approach, we separate a firm’s ego alliance network into two activity‐based networks—an exploratory network and an exploitative network—based on the primary value chain activity involved in each alliance. We argue that the cohesion of exploratory or exploitative networks has an inverted U‐shaped effect on the addition of new partners in the same activity‐based network, and a positive effect on the addition of new partners in the other network. Results based on data from the biotechnology industry largely support our predictions with one exception. Our study contributes to both scholarly understanding of network embeddedness and alliance practice. Managerial Summary: The structure of firms’ ongoing alliance networks may have paradoxical implications for their efforts to search for and form alliance with new partners. That is, when a firm’s alliance partners are tightly connected with each other, the cohesive network tends to both encourage and impede the focal firm to add new partners. We resolve this dilemma by showing that when a firm is deeply entrenched in a cohesive alliance network conducting a certain type of activities (e.g., R&D activities), it may not easily add new R&D alliance partners. However, it may still be able to escape from the cohesive R&D alliance network by seeking new partners conducting other activities (e.g., manufacturing activities). 相似文献
997.
To the Rescue!? Brokering a Rapid,Scaled and Customized Compassionate Response to Suffering after Disaster 下载免费PDF全文
Suffering comes in many forms that significantly impact organizations’ operations and performance. As a result, recent research on compassion organizing seeks to explain how efforts to notice, feel, and respond to suffering create organizational (and societal) benefits. Widespread suffering can be generated by natural disasters, which in turn can trigger compassionate organizational responses. In this paper, we build on social capital theory to theorize about how compassionate ventures leverage network relationships to identify and mobilize resources. We also explore how differences in these approaches influence the magnitude, speed, and customization of the response, all of which are theorized indicators of the effectiveness of compassion organizing in alleviating suffering. We use structural equation modelling to test our model and find that compassionate ventures with stronger ties to the local community are more likely to bundle (i.e., stretch) resources, which facilitates a speedy, customized, and large magnitude response. In contrast, those with stronger ties outside the local community are more likely to pursue (i.e., chase) new resources, which results in a large magnitude response, but one that is not associated with speed or customization. We discuss the implications of our findings and make recommendations for future research. 相似文献
998.
How a Firm's Domestic Footprint and Domestic Environmental Uncertainties Jointly Shape Added Cultural Distances: The Roles of Resource Dependence and Headquarters Attention 下载免费PDF全文
Guus Hendriks Arjen H. L. Slangen Pursey P. M. A. R. Heugens 《Journal of Management Studies》2018,55(6):883-909
Even though many firms conduct most of their business domestically, international management research has remained remarkably silent on the role of a firm's domestic footprint in its internationalization strategy. We shed light on that role by exploring how the size of a firm's domestic footprint influences the cultural distance that the firm adds to its country portfolio when expanding internationally. Integrating resource dependence theory and the attention‐based view, we hypothesize that a firm's domestic footprint has a negative relationship with added cultural distance (ACD), and that domestic policy uncertainty strengthens this relationship whereas domestic demand uncertainty weakens it. We find robust support for our hypotheses in a sample of the world's largest retailers covering the period 2000–07, indicating that a firm's domestic footprint and domestic environmental uncertainties jointly shape cross‐cultural expansion strategies. Our findings suggest that ACDs reflect headquarters executives' desire to avoid ineffective foreign expansions, hinting at possible biases in studies of the performance effects of distance. 相似文献
999.
This paper examines determinants of process innovation introductions across 115 (mostly) developing countries. Empirical research on process innovations lags behind product innovations. Accounting for firm characteristics, R&D, regulations and taxes, and corruption, results show that sole proprietors and R&D‐performing firms were more likely to introduce innovations, whereas greater prosperity made them less likely to do so. Corruption had a greasing effect, whereas firms in island nations were less likely to introduce, ceteris paribus. Effects of regulations and taxes and other firm characteristics were largely insignificant. Finally, some differences existed across manufacturing and service industries and across prevalence of innovation introductions. 相似文献
1000.
Career mentoring in context: A multilevel study on differentiated career mentoring and career mentoring climate 下载免费PDF全文
Annelies E. M. Van Vianen Doris Rosenauer Astrid C. Homan Christiane A. L. Horstmeier Sven C. Voelpel 《人力资源管理》2018,57(2):583-599
This study explores how supervisor career mentoring contributes to contemporary organizational career development, which strives to foster employees' promotability while strengthening their intention to stay. Specifically, we focus on the implications of career mentoring in team contexts. Applying a multilevel framework, we distinguish between individual‐level differentiated mentoring (i.e., an employee's mentoring perceptions as compared to those of other team members) and group‐level career mentoring climate (i.e., the average perception across all group members). In a workplace setting, we collected data from vocational job starters (N ranged from 230 to 290) and their company supervisors (N ranged from 56 to 68). We find that career mentoring climate positively relates to promotability, more so than differentiated career mentoring. Both career mentoring climate and differentiated career mentoring are positively related to the intention to stay. At the individual level, this relationship is mediated by job satisfaction. We discuss theoretical and practical implications of differentiated and group‐level mentoring. 相似文献