全文获取类型
收费全文 | 17861篇 |
免费 | 401篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3455篇 |
工业经济 | 1476篇 |
计划管理 | 2950篇 |
经济学 | 3891篇 |
综合类 | 253篇 |
运输经济 | 133篇 |
旅游经济 | 285篇 |
贸易经济 | 3025篇 |
农业经济 | 891篇 |
经济概况 | 1895篇 |
信息产业经济 | 1篇 |
邮电经济 | 8篇 |
出版年
2021年 | 110篇 |
2020年 | 215篇 |
2019年 | 266篇 |
2018年 | 319篇 |
2017年 | 340篇 |
2016年 | 324篇 |
2015年 | 243篇 |
2014年 | 348篇 |
2013年 | 1849篇 |
2012年 | 487篇 |
2011年 | 586篇 |
2010年 | 501篇 |
2009年 | 582篇 |
2008年 | 481篇 |
2007年 | 535篇 |
2006年 | 430篇 |
2005年 | 370篇 |
2004年 | 367篇 |
2003年 | 374篇 |
2002年 | 395篇 |
2001年 | 338篇 |
2000年 | 377篇 |
1999年 | 331篇 |
1998年 | 359篇 |
1997年 | 340篇 |
1996年 | 320篇 |
1995年 | 299篇 |
1994年 | 292篇 |
1993年 | 273篇 |
1992年 | 312篇 |
1991年 | 301篇 |
1990年 | 254篇 |
1989年 | 212篇 |
1988年 | 210篇 |
1987年 | 245篇 |
1986年 | 248篇 |
1985年 | 350篇 |
1984年 | 371篇 |
1983年 | 341篇 |
1982年 | 303篇 |
1981年 | 295篇 |
1980年 | 288篇 |
1979年 | 294篇 |
1978年 | 213篇 |
1977年 | 201篇 |
1976年 | 165篇 |
1975年 | 178篇 |
1974年 | 147篇 |
1973年 | 130篇 |
1971年 | 94篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
92.
James T. Areddy 《海外经济评论》2008,(6):44-46
中国股市从不久前的辉煌之巅急转直下,而与此同时,这个全球第一人口大国的投资者们又将获得新的渠道进军包括美国在内的海外股市。 相似文献
93.
Lindon J. Robison Robert J. Myers & Marcelo E. Siles 《Review of Agricultural Economics》2002,24(1):44-58
Social capital is a person or group's sympathy for or sense of obligation to another person or group. This article introduces social capital into a neoclassical model of farmland exchange and shows how relationships alter the terms of trade. Empirical evidence from a survey of farmers shows that the type of relationship farmland sellers have with farmland buyers has a statistically significant and economically important effect on the minimum-sell price for farmland. Compared to the minimum-sell price when selling to a total stranger in an arm's-length transaction, farmland sellers discount prices to friendly neighbors and relatives and require a premium from unfriendly neighbors and influential people in the community. 相似文献
94.
95.
96.
Thomas E. Armstrong 《Economic Theory》1992,2(1):27-41
Supported by SNF Grant No: DMS 8803556. 相似文献
97.
Janet E. Forrest 《R&D Management》1996,26(2):141-154
This paper analyzes the reasons for Japanese/U.S. collaborations in the biotechnology industry, and considers the question of whether such alliances pose a threat to the North American industry. Japan's technological competitiveness in biotechnology is examined in terms of its strengths and perceived weaknesses. Ways in which Japan is attempting to overcome these weaknesses are identified. As well, the strengths and weaknesses of the North American biotechnology industry are assessed. The paper concludes with recommendations for government and R&D managers on how to preserve U.S. competitiveness. R&D managers must keep abreast of their techno-global competitive environments. While organizations can enter into alliances to improve their competitiveness they must be aware of the dangers of collaboration, and to benefit from their alliances they must enhance their organizational learning. Organizations must be aware of the pitfalls of alliance formation, and any alliance must be viewed in its national context. Last, but not least, managers must be more effective in their management of the processes of technological innovation. 相似文献
98.
The Nested PIGLOG Model: An Application to U.S. Food Demand 总被引:1,自引:0,他引:1
A new demand system is introduced, the Nested PIGLOG model, nesting thirteen other demand systems including five that are also new. This new model and its nested special cases are applied to models of U.S. food demand that include food-at-home (FAH), food-away-from-home (FAFH), and alcoholic beverages. Although nested tests and out-of-sample forecasting performance favor generalizing models to a certain degree, statistically insignificant improvements to in-sample-fit and even poorer out-of-sample forecast accuracy undermine further generalizations. Based on a subset of preferred models, FAFH is found to be price and income elastic compared to FAH which is price and income inelastic. 相似文献
99.
Jin E. Zhang 《期货市场杂志》2003,23(6):535-560
This article explores the price of continuously sampled Asian options. For geometric Asian options, we present pricing formulas for both backward‐starting and forward‐starting cases. For arithmetic Asian options, we demonstrate that the governing partial differential equation (PDE) cannot be transformed into a heat equation with constant coefficients; therefore, these options do not have a closed‐form solution of the Black–Scholes type, that is, the solution is not given in terms of the cumulative normal distribution function. We then solve the PDE with a perturbation method and obtain an analytical solution in a series form. Numerical results show that as compared with Zhang's ( 2001 ) highly accurate numerical results, the series converges very quickly and gives a good approximate value that is more accurate than any other approximate method in the literature, at least for the options tested in this article. Graphical results determine that the solution converges globally very quickly especially near the origin, which is the area in which most of the traded Asian options fall. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:535–560, 2003 相似文献
100.
Alexander E. Ellinger Daniel F. Lynch James K. Andzulis Ronn J. Smith 《Journal of Business Logistics》2003,24(1):199-220
An Internet presence is a critical early component in the process of building towards a fully operational and unified e‐commerce strategy. E‐commerce has significantly impacted logistics/supply chain strategies and the development and implementation of a website have become key issues for many firms within the transportation industry. This study provides an overview of website content within the motor carrier industry. Content analysis was used to assess the site design, informational content, and the interactive content of 152 motor carrier websites, and to compare the features offered on the Top 100 motor carrier firm websites with those offered on the sites of smaller carrier firms. 相似文献