全文获取类型
收费全文 | 912篇 |
免费 | 24篇 |
专业分类
财政金融 | 178篇 |
工业经济 | 74篇 |
计划管理 | 175篇 |
经济学 | 173篇 |
综合类 | 9篇 |
运输经济 | 25篇 |
旅游经济 | 45篇 |
贸易经济 | 167篇 |
农业经济 | 28篇 |
经济概况 | 61篇 |
邮电经济 | 1篇 |
出版年
2023年 | 7篇 |
2021年 | 6篇 |
2020年 | 14篇 |
2019年 | 26篇 |
2018年 | 21篇 |
2017年 | 36篇 |
2016年 | 32篇 |
2015年 | 12篇 |
2014年 | 24篇 |
2013年 | 95篇 |
2012年 | 30篇 |
2011年 | 39篇 |
2010年 | 43篇 |
2009年 | 38篇 |
2008年 | 29篇 |
2007年 | 29篇 |
2006年 | 28篇 |
2005年 | 23篇 |
2004年 | 24篇 |
2003年 | 27篇 |
2002年 | 25篇 |
2001年 | 14篇 |
2000年 | 20篇 |
1999年 | 14篇 |
1998年 | 11篇 |
1997年 | 16篇 |
1996年 | 19篇 |
1995年 | 15篇 |
1994年 | 12篇 |
1993年 | 15篇 |
1992年 | 12篇 |
1990年 | 9篇 |
1989年 | 9篇 |
1988年 | 5篇 |
1987年 | 8篇 |
1986年 | 15篇 |
1985年 | 21篇 |
1984年 | 13篇 |
1983年 | 9篇 |
1982年 | 11篇 |
1981年 | 9篇 |
1980年 | 9篇 |
1979年 | 6篇 |
1978年 | 7篇 |
1977年 | 3篇 |
1976年 | 6篇 |
1975年 | 7篇 |
1974年 | 7篇 |
1971年 | 5篇 |
1969年 | 3篇 |
排序方式: 共有936条查询结果,搜索用时 15 毫秒
71.
‘Who Knows What?’ in New Venture Teams: Transactive Memory Systems as a Micro‐Foundation of Entrepreneurial Orientation 下载免费PDF全文
Ye Dai Philip T. Roundy Jay I. Chok Fangsheng Ding Gukdo Byun 《Journal of Management Studies》2016,53(8):1320-1347
The increasing importance of entrepreneurial behaviour has led scholars to embrace the idea that an entrepreneurial orientation (EO) is an important predictor of firm performance. While EO occupies a central position in strategic entrepreneurship research, scholars have yet to explore its origins in new ventures. Drawing on the knowledge‐based and cognitive views, we theorize that a new venture team's transactive memory system is a cognitive mechanism that spurs the development of an EO. In a field study of high‐tech new ventures in China, we examined the relationship between venture teams’ transactive memory systems (representing the distribution, integration, and utilization of the teams’ knowledge) and EO and the moderating influence of team‐, firm‐, and environment‐level factors. We found that the transactive memory system of a new venture team enhanced their EO and that this relationship was positively influenced by intra‐team trust, the structural organicity of a venture, and environmental dynamism. Our findings provide novel insights into the micro‐foundations of TMS in developing an EO in new ventures. 相似文献
72.
Elias J. Jabbour Martin F. Mendiola Melissa Lingohr-Smith Jay Lin Dinara Makenbaeva 《Journal of medical economics》2013,16(11):1113-1118
AbstractObjective: To develop an economic model to evaluate changes in healthcare costs driven by restricting usage of branded tyrosine kinase inhibitors (TKIs) through substitution with generic imatinib among chronic myeloid leukemia (CML) patients in a typical Oncology Care Model (OCM) practice, and examine the impact on Performance-Based Payment (PBP) eligibility.Methods: An Excel-based economic model of an OCM practice with 1,000 cancer patients during a 6-month episode of care was developed. Cancer types and proportions of patients treated in the practice were estimated from an OCM report. All-cause healthcare costs were obtained from published literature. It was assumed that if a practice restricts usage of branded TKIs for newly-diagnosed CML patients, 80% of the market share of branded imatinib and 50% of the market shares of 2nd-gen TKIs would shift to generic imatinib. Among established TKI-treated patients, it was assumed that 80% of the market share of branded imatinib and no patients treated with 2nd-gen TKIs would shift to the generic.Results: Four CML patients were estimated for a 1,000-cancer patient OCM practice with a total baseline healthcare cost of $51,345,812 during a 6-month episode. If the practice restricts usage of branded TKIs, the shift from 2nd-gen TKIs to generic imatinib would reduce costs by $12,970, while shifting from branded to generic imatinib lowers costs by $25,250 during a 6-month episode. Minimum reductions of $3,013,832 in a one-sided risk model and $2,372,010 in a two-sided risk model are required for PBP eligibility; the shift from 2nd-gen TKIs to generic imatinib would account for 0.4% and 0.5% of the savings required for a PBP, respectively.Conclusions: This analysis indicates that the potential cost reduction associated with restricting branded TKI usage among CML patients in an OCM setting will represent only a small proportion of the cost reduction needed for PBP eligibility. 相似文献
73.
Jay Prakash Mulki 《International Journal of Human Resource Management》2013,24(4):902-923
Virtual work is becoming the norm in sales organizations because it is cost effective for the firm and can benefit customers and salespeople. However, along with these benefits, virtual work brings new challenges to organizations. One critical issue is workplace isolation (WI). This study uses responses from a sample of 346 salespeoples in the pharmaceutical field to test a model that investigates the relationships among WI, self-efficacy, leadership style, extra-role performance (ERP), satisfaction with the supervisor, and turnover intentions. Salespersons perception of managers as considerate leaders are associated with lower WI levels. Salespeople with higher levels of self-efficacy are less likely to believe that they are isolated from the company and their colleagues. WI, in turn, is significantly related to satisfaction with the supervision and ERP. Managerial implications and future research directions are presented. 相似文献
74.
The literature on racial “peer effects” suggests that diversity improves at least some students' school performance. However, a literature in economic development posits that diversity may negatively affect school performance by undermining the efficient provision of education. This article empirically tests this claim, which we call the “public goods channel,” by examining the relationship between racial diversity and student performance in Ohio's school districts. We find that moving from a completely homogenous school district to one in which two racial groups have equal population shares is associated with a 7–17.5 percentage point decline in the passage rate on the state math exam, holding per pupil spending across districts constant. These results suggest that racial diversity is negatively associated with school performance but that the public goods channel is not responsible for this relationship. 相似文献
75.
The impact of population growth and climate change on food security in Africa: looking ahead to 2050
Providing nutritious and environmentally sustainable food to all people at all times is one of the greatest challenges currently facing society. This problem is particularly acute in Africa where an estimated one in four people still lack adequate food to sustain an active and healthy life. In this study, we consider the potential impact of future population growth and climate change on food security in Africa, looking ahead to 2050. A modelling framework termed FEEDME (Food Estimation and Export for Diet and Malnutrition Evaluation) was used which was characterized to model the impacts of future climate changes (utilizing the Intergovernmental Panel on Climate Change Special Report on Emissions Scenarios projections) and projected population growth on food availability and subsequent undernourishment prevalence in 44 African countries. Our results indicate that projected rapid population growth will be the leading cause of food insecurity and widespread undernourishment across Africa. Very little to no difference in undernourishment projections were found when we examined future scenarios with and without the effects of climate change, suggesting population growth is the dominant driver of change. Various adaptation options are discussed, such as closing the yield gap via sustainable intensification and increasing imports through trade and aid agreements. These strategies are likely to be critical in preventing catastrophic future food insecurity. 相似文献
76.
77.
Der fl?chendeckende Glasfaserausbau in Deutschland ist mit hohen Kosten verbunden. Insbesondere die Anschlüsse in dünn besiedelten
Gebieten lassen die Kosten steigen. Die Autoren berechnen verschiedene M?glichkeiten der Kostenaufteilung. 相似文献
78.
这是公司发展史上策划最周详的过渡之一.两年前,微软公司董事长比尔·盖茨宣布,他将放手在这家他与别人共同创建的公司的日常管理责任,把更多的时间投入慈善事业.从那以后,盖茨和微软公司首席执行官史蒂芬·巴尔默提拔了那些将会接替盖茨,为微软公司开发技术、战略和远景的人. 相似文献
79.
Jay H. Bryson Chih-huan Chen David D. VanHoose 《The Scandinavian journal of economics》1998,100(4):693-710
This paper shows how economic interdependence affects the indexation decisions of atomistic wage setters in an environment in which monetary authorities do not observe stochastic disturbances before making their policy choices. If stochastic disturbances are common across countries, interdependence has no effect on equilibrium indexation choices in identical countries. However, if disturbances are country specific, numerical simulations show that interdependence is likely to reduce equilibrium indexation choices relative to a small open economy. We also show that indexation choices may be either strategic complements or strategic substitutes, but that strategic complementarity becomes more likely as the degree of interdependence rises. 相似文献
80.
Jay Mitchell Eric A. DeVuyst Marc L. Bauer Daniel L. Larson 《Agricultural Economics》2009,40(1):113-118
Profitability of cow-calf production is determined largely by market prices, calf weaning weights, and cow productive life. While producers individually have no effect on prices, weaning weights and productive life have genetic influences and hence can be altered by selection programs implemented by producers. We investigate the impact of a mutation in the leptin gene (exon 2; single nucleotide polymorphism [SNP] 305) on cow-calf profitability. Prior research shows that this mutation has effects on performance and traits of fed cattle and milk production in dairy cows. Using data from a teaching-research herd, we find that it is also associated with calf weaning weights and cow productive life. A bio-economic stochastic simulation demonstrates that the mutation has statistically positive impacts on profits, suggesting that producers can profitably make use of this information. 相似文献