全文获取类型
收费全文 | 782篇 |
免费 | 47篇 |
专业分类
财政金融 | 130篇 |
工业经济 | 46篇 |
计划管理 | 135篇 |
经济学 | 219篇 |
综合类 | 4篇 |
运输经济 | 1篇 |
旅游经济 | 10篇 |
贸易经济 | 188篇 |
农业经济 | 29篇 |
经济概况 | 52篇 |
邮电经济 | 15篇 |
出版年
2023年 | 13篇 |
2022年 | 8篇 |
2021年 | 19篇 |
2020年 | 30篇 |
2019年 | 24篇 |
2018年 | 33篇 |
2017年 | 52篇 |
2016年 | 36篇 |
2015年 | 38篇 |
2014年 | 36篇 |
2013年 | 96篇 |
2012年 | 47篇 |
2011年 | 42篇 |
2010年 | 39篇 |
2009年 | 28篇 |
2008年 | 27篇 |
2007年 | 24篇 |
2006年 | 25篇 |
2005年 | 22篇 |
2004年 | 12篇 |
2003年 | 19篇 |
2002年 | 14篇 |
2001年 | 11篇 |
2000年 | 6篇 |
1999年 | 4篇 |
1998年 | 7篇 |
1997年 | 8篇 |
1996年 | 6篇 |
1995年 | 6篇 |
1994年 | 14篇 |
1993年 | 5篇 |
1992年 | 5篇 |
1991年 | 5篇 |
1990年 | 5篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 5篇 |
1986年 | 4篇 |
1985年 | 8篇 |
1984年 | 2篇 |
1983年 | 6篇 |
1981年 | 3篇 |
1979年 | 4篇 |
1977年 | 4篇 |
1971年 | 2篇 |
1970年 | 2篇 |
1960年 | 2篇 |
1933年 | 1篇 |
1932年 | 1篇 |
1931年 | 1篇 |
排序方式: 共有829条查询结果,搜索用时 62 毫秒
1.
Sabrina Schneider 《R&D Management》2019,49(4):399-420
Firms need to show dynamic adaptability and innovate their business models to achieve survival and growth, in particular when they are exposed to high levels of exogenous change. However, business model innovation also takes place in the absence of exogenous change. We know relatively little about firms’ approaches to opportunities for business model innovation in both of these environmental settings. The objective of this study is to understand how firms exposed to various environmental conditions explore and exploit business model innovation opportunities. In a qualitative multiple case analysis, the study compares the approaches to business model innovation used by four firms exposed to high levels of exogenous change with those of four firms operating in the absence of exogenous change. The findings are contrasted with entrepreneurial opportunity discovery and creation theories. The results reveal that firms exposed to high levels of exogenous change focus on discovering objective opportunities, whereas firms operating in the absence of exogenous change concentrate on creating opportunities for business model innovation. However, this study revealed that when the firms further explore and exploit these opportunities, they tend to combine the behaviours that the two opportunity perspectives suggest. This study contributes to the literature on business model innovation by emphasising the relationship between environmental context and approach to business model innovation and by reinforcing the link with entrepreneurship theory. 相似文献
2.
Johannes Hörner 《The Review of economic studies》2004,71(4):1065-1088
This paper presents a model of dynamic competition between two firms that repeatedly engage in an innovative activity. The state of competition—measured by the difference between the number of innovations introduced by the firms—evolves stochastically according to their effort level. The structure of Markov perfect equilibria is identified. It is generally not true that competition is fiercest when firms are closest. Rather, firms invest under two distinct circumstances: while sufficiently ahead, to outstrip their rival and secure a durable leadership; while behind, to regain leadership and prevent the situation from worsening to the point where their rival outstrips them. 相似文献
3.
4.
Paula S. Weber James E. Weber Bradley R Sleeper Ken L. Schneider 《Journal of Business Ethics》2004,49(4):359-369
This paper presents the development andvalidation of new measurement tools to exploreself-efficacy toward service and toward civicparticipation. We developed and administereda survey to 851 students in an AACSB-accreditedcollege of business at a comprehensive publicuniversity located in the Midwest. Traditionalscale development methodologies plusconfirmatory factor analysis and simultaneousfactor analysis in several populations wereused to analyze both a primary sample and aholdback sample. Results strongly support thevalidity and reliability of the surveyinstrument. Future use for the instrumentincludes verification of the effectiveness ofpedagogies designed to increase self-efficacytoward service and motivation for civicparticipation in business students. 相似文献
5.
6.
Giovanni Facchini Johannes Van Biesebroeck Gerald Willmann 《The Canadian journal of economics》2006,39(3):845-873
Abstract . Grossman and Helpman (1994) explain tariffs as the outcome of a lobbying process. In most empirical implementations of this framework protection is instead measured using non-tariff barriers. Since tariffs allow the government to fully capture the rents from protection, while non-tariff barriers do not, the existing parameter estimates of the protection for sale model are likely to be biased. To address this problem, we augment the framework by considering instruments that allow partial capturing. Our specification is supported by the data, where we find that only 72–75% of the rent from protection is appropriated by the government. 相似文献
7.
8.
Benjamin Schneider 《人力资源管理》2007,46(4):583-610
This article reviews the dynamic evolution of personality research and practice in work organizations from the early 1900s through the present. The article reveals steady‐state equilibrium in the world of practice. In contrast, the world of research is shown to be punctuated by rapid changes in conceptual foci, levels of analysis, and methodological approaches, as well as whether or not personality at work is even considered important. Explanations are offered for these trends, including the ways theory and research in the larger world of the study of personality have been reflected in personality research in and on work organizations. The article concludes with some thoughts about revisiting various branches in this evolution and suggestions for the future of personality research and practice in work organizations. © 2007 Wiley Periodicals, Inc. 相似文献
9.
HOW INCOME INEQUALITY CHANGED IN GERMANY FOLLOWING REUNIFICATION: AN EMPIRICAL ANALYSIS USING DECOMPOSABLE INEQUALITY MEASURES 总被引:9,自引:0,他引:9
This paper analyzes how inequality in Before and After Government income has changed in Germany since reunification using the 1990 through 1992 waves of the German Socio-Economic Panel. A Theil decomposable inequality index is used to measure inequality in Germany and in its eastern and western states. Massive public transfers from west to east have narrowed the east-west income gap, substantially offset the rise in income inequality from private sources, and lowered overall inequality in the western states. The net result of this policy has been a drop in After Government income inequality in Germany between 1990 and 1992. 相似文献
10.
Use of biofuels diminishes fossil fuelcombustion thereby also reducing net greenhousegas emissions. However, subsidies are
neededto make agricultural biofuel productioneconomically feasible. To explore the economicpotential of biofuels in a greenhouse
gasmitigation market, we incorporate data onproduction and biofuel processing for thedesignated energy crops switchgrass,
hybridpoplar, and willow in an U.S. AgriculturalSector Model along with data on traditionalcrop-livestock production and processing,
andafforestation of cropland. Net emissioncoefficients on all included agriculturalpractices are estimated through crop growthsimulation
models or taken from the literature. Potential emission mitigation policies ormarkets are simulated via hypothetical carbonprices.
At each carbon price level, theAgricultural Sector Model computes the newmarket equilibrium, revealing agriculturalcommodity
prices, regionally specificproduction, input use, and welfare levels,environmental impacts, and adoption ofalternative management
practices such asbiofuel production. Results indicate no rolefor biofuels below carbon prices of $40 perton of carbon equivalent.
At these incentivelevels, emission reductions via reduced soiltillage and afforestation are more costefficient. For carbon
prices above $70,biofuels dominate all other agriculturalmitigation strategies. 相似文献