全文获取类型
收费全文 | 5648篇 |
免费 | 51篇 |
国内免费 | 6篇 |
专业分类
财政金融 | 422篇 |
工业经济 | 189篇 |
计划管理 | 707篇 |
经济学 | 3070篇 |
综合类 | 257篇 |
运输经济 | 27篇 |
旅游经济 | 60篇 |
贸易经济 | 479篇 |
农业经济 | 76篇 |
经济概况 | 418篇 |
出版年
2024年 | 8篇 |
2023年 | 83篇 |
2022年 | 284篇 |
2021年 | 333篇 |
2020年 | 433篇 |
2019年 | 336篇 |
2018年 | 299篇 |
2017年 | 320篇 |
2016年 | 381篇 |
2015年 | 184篇 |
2014年 | 241篇 |
2013年 | 298篇 |
2012年 | 259篇 |
2011年 | 483篇 |
2010年 | 270篇 |
2009年 | 306篇 |
2008年 | 262篇 |
2007年 | 215篇 |
2006年 | 185篇 |
2005年 | 104篇 |
2004年 | 87篇 |
2003年 | 66篇 |
2002年 | 54篇 |
2001年 | 36篇 |
2000年 | 22篇 |
1999年 | 35篇 |
1998年 | 15篇 |
1997年 | 15篇 |
1996年 | 12篇 |
1995年 | 4篇 |
1994年 | 9篇 |
1993年 | 9篇 |
1992年 | 6篇 |
1991年 | 3篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 4篇 |
1984年 | 39篇 |
排序方式: 共有5705条查询结果,搜索用时 281 毫秒
141.
142.
研发市场是经营者在特定产品和技术竞争中形成的市场范围。由于研发活动的不确定性,反垄断执法机关在界定研发市场时难以准确厘定市场边界,更深层次的原因在于维持竞争与激励研发的关系尚不明晰。研发竞争中的垄断行为难以通过相关市场界定的方式判断其违法性,需要结合具体案情和市场条件,动态分析涉案行为是否损害产品或技术研发竞争。 相似文献
143.
Charles A. W. deGrazia Jesse P. Frumkin 《Economics of Innovation and New Technology》2020,29(2):113-146
ABSTRACTClear and well-defined patent rights can incentivize innovation by granting monopoly rights to the inventor for a limited period of time in exchange for public disclosure of the invention. However, with cumulative innovation, when a product draws from intellectual property held across multiple firms (including fragmented intellectual property or patent thickets), contracting failures may lead to suboptimal economic outcomes. However, an alternative theory, developed by a variety of scholars, contends that patent thickets have a more ambiguous effect. Researchers have developed several measures to gauge the extent and impact of cumulative innovation and the various channels of patent thickets. This paper contends that mis-measurement may contribute to the incoherence and overall lack of consensus within the patent thickets literature. Specifically, the literature is missing a precise measure of vertically overlapping claims. We propose a new measure of vertically overlapping claims that incorporates invention similarity to more precisely identify inventive overlap. The measure defined in this paper will enable more accurate measurement, and allow for novel economic research on cumulative innovation, fragmentation in intellectual property, and patent thickets within and across all patent jurisdictions. 相似文献
144.
Innovation contests allow firms to harness specialized skills and services from globally dispersed participants for solutions to business problems. Such contests provide a rich setting for operations management (OM) scholars to explore problem solving in global labor markets as firms continue to unbundle their innovation value chains. In this study, we examine the implications of specific types of diversity in innovation contests on problem-solving effort and success. First, we conceptualize diversity among contestants in terms of national wealth (measured as gross domestic product per capita (GDPP) adjusted for purchasing power parity) and national culture (measured using the culture dimensions of performance orientation and uncertainty avoidance) and examine how such factors influence problem-solving effort. Next, we examine how differences between contestants and contest holders in terms of the above factors influence contest outcomes. Using data from a popular online innovation contest platform and country-level archival data, we find that contestants from countries with lower levels of GDPP are more likely to exert greater problem-solving effort compared to other contestants. With regard to national culture, we find that performance orientation and uncertainty avoidance have positive and negative effects, respectively, each of which weakens with increasing levels of GDPP. Finally, our analysis provides evidence of homophily effects indicating that contestants who share greater similarities with the contest holder in terms of national wealth and national culture are more likely to be successful in a contest. We discuss the implications of the study's findings for contest holders and platform owners who organize innovation contests, and for emerging research on innovation contests. 相似文献
145.
146.
互联网技术革命及消费者需求的不断更新推动了虚拟组织的诞生与发展,作为新型的价值创造系统,虚拟组织以核心能力为结点,能够集成整合价值链上的优势资源,紧抓市场机遇,持续为客户创造价值。首先,厘清了虚拟组织持续创新的内涵与本质。在此基础上,分别论述了虚拟组织持续创新的4大构件即创新动力、创新过程、学习能力与界面管理,及其之间的交互作用,提出了虚拟组织持续创新的运行机理,旨在深化对虚拟组织持续创新的研究和认识。 相似文献
147.
Seeking to understand factors affecting innovation diffusion, research has increasingly focused on process, actors and activities. After two decades of research, however, a systematisation of these three sets of studies is still lacking. Thus, this paper contributes to the existing literature providing a comprehensive framework of factors affecting innovation diffusion between organisations. Specifically it evidences phases of innovation diffusion process, clarifies the role of innovator, adopters and intermediaries and evidences actions that policy-makers can implement to support it. 相似文献
148.
Drawing on learning theories and the intellectual capital (IC) theory, organizational learning research has discussed the benefits of searching for market opportunities and maintaining a competitive advantage in dynamic environments. To explain organizational performance and survival, the previous literature has focused mainly on what organizations do, but it has failed to address how and what they should do. This study argues that if hotel management is open-minded about exploratory and exploitative learning, it can open the door to capturing opportunity and competitive advantage through increased innovation behavior and human capital accumulation. Further, IC theory has also confirmed that social capital and relational capital will strengthen the relationship between innovation behavior and human capital. This study analyzes data from 595 hotel managers and finds strong support for the proposed hypotheses. 相似文献
149.
150.
服务业开放水平不高和贸易监管制度不健全已成为我国服务贸易发展的制约。在我国经济新常态下,应充分利用上海自由贸易试验区建设机遇,加快开放以计算机服务为重点的跨境交付、以专业服务业为主的商业存在和以职业资质互认为重点的自然人移动等领域,培育本土供应商和打造公共服务平台,完善服务贸易监管制度、促进制度和统计制度,推进区域拓展和主体拓展,实现我国服务贸易整体创新。 相似文献