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   44254篇
  免费   483篇
  国内免费   3篇
财政金融   6224篇
工业经济   2788篇
计划管理   8444篇
经济学   8814篇
综合类   2727篇
运输经济   179篇
旅游经济   149篇
贸易经济   7492篇
农业经济   1655篇
经济概况   5585篇
信息产业经济   49篇
邮电经济   634篇
  2024年   49篇
  2023年   247篇
  2022年   467篇
  2021年   672篇
  2020年   652篇
  2019年   439篇
  2018年   2609篇
  2017年   2725篇
  2016年   1697篇
  2015年   711篇
  2014年   920篇
  2013年   1472篇
  2012年   2571篇
  2011年   5521篇
  2010年   4854篇
  2009年   3401篇
  2008年   3501篇
  2007年   3750篇
  2006年   2150篇
  2005年   2217篇
  2004年   995篇
  2003年   1034篇
  2002年   714篇
  2001年   501篇
  2000年   275篇
  1999年   116篇
  1998年   106篇
  1997年   77篇
  1996年   67篇
  1995年   28篇
  1994年   30篇
  1993年   30篇
  1992年   33篇
  1991年   27篇
  1990年   20篇
  1989年   11篇
  1988年   12篇
  1987年   5篇
  1986年   13篇
  1985年   1篇
  1984年   14篇
  1983年   2篇
  1980年   2篇
  1978年   1篇
  1900年   1篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
961.
基于无边界职业生涯的理论视角,采用问卷调查法,考察了影响新生代员工和传统代员工组织承诺的关键性因素,并通过优势分析确定其相对权重.结果表明:(1)在无边界职业生涯时代,企业员工具有较高的无边界心智模式和适度的组织流动性偏好,新生代员工的无边界心智模式显著高于传统代员工,但组织流动性偏好在不同代际之间的差异不显著.(2)组织流动性偏好显著地负向预测组织承诺,无边界心智模式对组织承诺的预测作用均不显著,组织发展性支持和感知的职业机会显著地正向预测组织承诺.(3)组织承诺影响因素的相对重要性存在代际差异,组织中的职业机会是影响新生代员工组织承诺的最重要因素,组织的发展性支持是影响传统代员工组织承诺的最重要因素.  相似文献   
962.
From experience, fund-raisers become more efficient solicitors. This paper offers a full characterization of the optimal solicitation strategy when there are learning economies. The characterization is recursive, and does not require equilibrium computations. Our main results are that (1) the fund-raiser may now solicit a “ net free-rider”—a donor whose contribution falls below the marginal solicitation cost; (2) the number of solicitations is non-monotonic in the learning rate; and (3) a solicitation technology with high overhead but low marginal costs is likely to be optimal if income distribution in the population is relatively homogenous. The complementary case with a decreasing returns to scale technology is also considered.  相似文献   
963.
964.
In recent years, a growing number of small-to-medium-enterprises are embracing wind turbine projects not only as part of their cost reduction strategy but also to actively play their part in the global fight against climate change. However, it would appear there are currently limited empirical studies carried out in this emerging industry. This case study analyses the cost effectiveness of one such wind turbine initiative by a company in the Republic of Ireland, who invested in a 300 kW embedded wind turbine project at the end of 2013. The research methodology which is primarily a case study analysis included comparing historical electricity utility bills which allowed the 2013 quantity of electrical energy units imported, i.e. the year before the turbine was installed to be compared with the 2014 value, i.e. the year after the turbine was installed. Numerous site visits were undertaken over a four-year period, during which electric meter readings were recorded and stored. The findings of this piece of research indicate that the installation of the embedded wind turbine had minimal positive effect on the annual electricity costs for the company. Indeed the turbine appears to have significant negative effects such as a need for an increased maximum import capacity and also it appeared to contribute to a deteriorating utility power factor. While the aesthetic nature of the on-site turbine seemed to create a positive image of the company, it would appear that caution should be exercised when business owners select alternative energy providers who claim to be experts in the energy field but may have limited knowledge in this area of wind energy, which as of yet has minimal robust research into all aspects of its benefits/attributes.  相似文献   
965.
社会保障系统通过社会与个体的风险共担,增进了个人、家庭和社会的福利水平,对就业、消费、投资均有显著影响。过去社会保障理论侧重信息约束和跨期决策下的机制设计,通过政府干预来实现有效的风险和成本共担,进而有效化解社会成员所面临的各种风险。但这些干预机制有可能会对就业等产生负面影响。近年来,行为与实验经济学开始进入社会保障理论的研究,新的理论试图从理性约束视角来理解社会保障系统的性质及其影响,并提出了全新的助推机制的设计理念与思路。迄今的研究发现,干预机制和助推机制各有千秋,通过合理的互补与替代,能够更好地实现社会保障系统的有效运行。  相似文献   
966.
中国共产党建党百年,为民谋幸福的初心和使命未曾动摇过.以中国共产党幸福观为指导思想,分析我党为民谋幸福的理论与观点在新时代的理论价值和实践意义,为新时代党领导人民建设美好生活提供坚定的思想指导和理论指引.在此基础上,进一步探索全面践行我党幸福观的发展对策,积极完善社会主义民主政治、经济生活、精神文明和生态文明,不断满足人民群众对政治、经济、文化、生态领域日益增长的美好需求以增强人民群众的获得感和幸福感,更好地建设社会主义现代化强国.  相似文献   
967.
This research introduces the multi-product capacitated facility location problem with general production and building costs (MP-CFLPGC). The MP-CFLPGC extends previous problems found in the literature by including multiple products and general production and building cost functions that allow the modeling of different behaviors like economies of scale and congestion. The MP-CFLPGC is formulated as a mixed integer linear program (MILP). To evaluate the performance of the proposed formulation we analyze the results of a commercial optimizer on a set of 288 randomly generated test instances that resemble the Colombian cement industry supply chain. After one hour the optimizer achieved an optimality gap of 1.0 % or less in 55 % out of the 288 test instances. On average the optimality gap was 3.57 %. Additionally, we propose a randomized mathematical-programming-based heuristic for the test instances where the MILP formulation presents significantly high optimality gaps.  相似文献   
968.
The purpose of this paper is to empirically explore two dimensions of the firm hierarchy of international market-specific linkages, using data on Swedish manufacturing firms from 1997 to 2007. First, we investigate the productivity ordering with respect to three international linkages; importing, exporting and investing abroad. Second, we explore whether differences in the productivity ordering across industries correlates with industry and country characteristics. Our findings support a general productivity hierarchy from importing to exporting and from exporting to investing abroad, as well as from a low to a high number of linkages (measuring the complexity of firms’ international linkages). However, an industry-by-industry examination shows that the hierarchical structure is only generally upheld when it comes to the number of international linkages, while the ordering of import, export and investment linkages does not exhibit the same regularity across industries. Extending the analysis, we find that the lack of a hierarchical structure is more likely in industries focusing on larger and less distant markets.  相似文献   
969.
It is hard to assess the coordinated effect of mergers in solid and convincing fashion, in part because economic theory deals mainly with the sustainability of tacit collusion and generally does not explore the conditions that foster collusion in the first place. Also the most popular schemes of collusion (Joint profit maximization and Nash Bargaining) proposed by the economic literature seem at odds with the evidence recorded on cartels and with the practical attitude of entrepreneurs. In this scenario the recent version of the Horizontal Merger Guidelines contained the interesting suggestion to pay attention to the process - parallel behaviour – which leads to collusive equilibria. Working on the same intuition we propose an approach based on the idea that firms can always find a feasible collusive agreement, for every possible value of the factor which discounts future profits. Assuming that in order to collude, firms demand the fair sharing of collusive gains, we exploit the egalitarian property of grim trigger strategies when all incentive compatibility constraints are binding. This approach suggests using three indicators to determine whether and how a merger affects the probability of collusion. An application of this approach to a real-world case (the AT&T/T-Mobile merger) is provided.  相似文献   
970.
Within the growing body of Chinese entrepreneurship literature, guanxi is increasingly recognized as an important indigenous Chinese business practice with important implications for firm performance and success. Guanxi is defined as relationship or connection. China’s continued economic growth and forecasts of it becoming one of the world’s largest consumer markets present multinational corporations and foreign entrepreneurs alike with unprecedented economic opportunities. Thus, greater insight is required into how foreign entrepreneurs, as outsiders, establish and develop close guanxi relationships. Conceptualizing guanxi as a dynamic process, this paper explores the underlying interactions and processes foreign entrepreneurs engage in to establish and build a strong emotional connection and trust with their closest guanxi partner. Using an exploratory single case study approach, data from 15 foreign entrepreneurs operating legally registered small- and medium-size enterprises (SMEs) in Shanghai was collected and analyzed. In addition, self-administered structured questionnaires that utilize the McAllister trust scale were used to measure 20 foreign entrepreneurs’ levels of cognitive and affective trust toward their closest guanxi partner. Overall, the findings of the study provide an in-depth understanding of the complex interplay and functioning of third-party and anticipatory bases. In so doing, the study’s outsider perspective addresses a critical gap in the literature that yields initial yet important insights that contribute to a better understanding and appreciation of the inherent nuances and differences in relationship-building processes in cross-cultural settings. Furthermore, these findings bring to the fore the need to consider the ways in which this indigenous Chinese business practice may be evolving in the face of increasing internationalization.  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