全文获取类型
收费全文 | 24349篇 |
免费 | 200篇 |
专业分类
财政金融 | 4367篇 |
工业经济 | 1358篇 |
计划管理 | 3710篇 |
经济学 | 5597篇 |
综合类 | 596篇 |
运输经济 | 49篇 |
旅游经济 | 126篇 |
贸易经济 | 5972篇 |
农业经济 | 272篇 |
经济概况 | 1884篇 |
信息产业经济 | 44篇 |
邮电经济 | 574篇 |
出版年
2021年 | 60篇 |
2020年 | 93篇 |
2019年 | 152篇 |
2018年 | 2406篇 |
2017年 | 2149篇 |
2016年 | 1332篇 |
2015年 | 211篇 |
2014年 | 225篇 |
2013年 | 900篇 |
2012年 | 662篇 |
2011年 | 2165篇 |
2010年 | 2013篇 |
2009年 | 1751篇 |
2008年 | 1756篇 |
2007年 | 2078篇 |
2006年 | 326篇 |
2005年 | 639篇 |
2004年 | 684篇 |
2003年 | 781篇 |
2002年 | 464篇 |
2001年 | 232篇 |
2000年 | 216篇 |
1999年 | 148篇 |
1998年 | 181篇 |
1997年 | 138篇 |
1996年 | 152篇 |
1995年 | 132篇 |
1994年 | 127篇 |
1993年 | 123篇 |
1992年 | 118篇 |
1991年 | 105篇 |
1990年 | 99篇 |
1989年 | 87篇 |
1988年 | 77篇 |
1987年 | 97篇 |
1986年 | 104篇 |
1985年 | 162篇 |
1984年 | 136篇 |
1983年 | 152篇 |
1982年 | 98篇 |
1981年 | 106篇 |
1980年 | 96篇 |
1979年 | 94篇 |
1978年 | 94篇 |
1977年 | 111篇 |
1976年 | 92篇 |
1975年 | 69篇 |
1974年 | 48篇 |
1973年 | 59篇 |
1970年 | 33篇 |
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
181.
182.
183.
184.
185.
Stop and Go Agricultural Policies with a Land Market 总被引:1,自引:0,他引:1
This article studies the design of farm policy in the presence of asymmetric information about farmers' productivity, a government objective to insure farmers a minimum "parity" income, an endogenous land rent, and diminishing returns on alternative (nonprogram crop) land uses. In this setting, acreage set asides are never part of an optimal farm policy, although compensated acreage limits are. When there are new farmer entrants who cannot be excluded from farm programs, optimal policy takes the form of a pure voluntary acreage limitation—or "buyout"—program in which high-cost producers participate and low-cost producers do not. 相似文献
186.
Robert G. Tompkins 《期货市场杂志》2003,23(2):169-215
The introduction of unspanned sources of risk (and frictions) implies that option prices include a risk premium. Prima facie evidence of the existence of risk premia in option prices is contained in the implied volatility smile patterns reported in the literature. This article isolates the risk premium (defined as the simple difference between estimated and observed option prices) on options on U.K. Gilts, German Bunds, and U.S. Treasury bond futures using models that include price jumps and stochastic volatility. This study finds that single and multi‐factor stochastic volatility models with jumps may explain the empirical regularities observed in bond futures. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:169–215, 2003 相似文献
187.
Collaborative arrangements among members of the supply chain have received a great deal of interest in recent years as a means of reducing costs. One such arrangement is vendor managed inventory (VMI). VMI allows the vendor to make decisions concerning the quantity and timing of deliveries to the retailer. Such an arrangement offers the potential of a more efficient supply chain by removing the negative effects of retail ordering policies. A thorough review of the literature was conducted to identify factors likely to impact the performance of a VMI partnership. Computer simulation was used to study the effects of these factors from both the vendor's and retailer's perspectives. The results lend insight into the performance of VMI and guidance for managers as to the environments in which VMI is most effective. 相似文献
188.
In the e-world where many of us live and work, virtual work arrangements will become increasingly commonplace. This paper reports on an exploratory study into the way in which consultants can ply their trade virtually with clients whom they never meet. US-located e-consultants provided advice to Hong Kong-located web site developers on the interface and content aspects of a website that was being developed for an international audience. Extensive analyses of the communication between the consultants and developers is undertaken, in parallel with an analysis of survey data obtained from the two sets of stakeholders. Lessons are drawn for future research and practice. 相似文献
189.
190.