全文获取类型
收费全文 | 25521篇 |
免费 | 724篇 |
专业分类
财政金融 | 4423篇 |
工业经济 | 1714篇 |
计划管理 | 4397篇 |
经济学 | 5940篇 |
综合类 | 256篇 |
运输经济 | 194篇 |
旅游经济 | 375篇 |
贸易经济 | 4690篇 |
农业经济 | 1186篇 |
经济概况 | 2787篇 |
信息产业经济 | 3篇 |
邮电经济 | 280篇 |
出版年
2023年 | 134篇 |
2021年 | 192篇 |
2020年 | 333篇 |
2019年 | 513篇 |
2018年 | 657篇 |
2017年 | 672篇 |
2016年 | 664篇 |
2015年 | 457篇 |
2014年 | 697篇 |
2013年 | 2807篇 |
2012年 | 893篇 |
2011年 | 937篇 |
2010年 | 866篇 |
2009年 | 914篇 |
2008年 | 843篇 |
2007年 | 729篇 |
2006年 | 664篇 |
2005年 | 588篇 |
2004年 | 507篇 |
2003年 | 528篇 |
2002年 | 490篇 |
2001年 | 543篇 |
2000年 | 513篇 |
1999年 | 442篇 |
1998年 | 500篇 |
1997年 | 439篇 |
1996年 | 441篇 |
1995年 | 375篇 |
1994年 | 392篇 |
1993年 | 370篇 |
1992年 | 374篇 |
1991年 | 396篇 |
1990年 | 361篇 |
1989年 | 270篇 |
1988年 | 270篇 |
1987年 | 276篇 |
1986年 | 259篇 |
1985年 | 370篇 |
1984年 | 367篇 |
1983年 | 356篇 |
1982年 | 305篇 |
1981年 | 301篇 |
1980年 | 295篇 |
1979年 | 294篇 |
1978年 | 236篇 |
1977年 | 193篇 |
1976年 | 200篇 |
1975年 | 177篇 |
1974年 | 159篇 |
1973年 | 155篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
891.
892.
893.
In this article we are interested in the asymptotic comparison, at optimal levels, of a set of semi‐parametric reduced‐bias extreme value (EV) index estimators, valid for a wide class of heavy‐tailed models, underlying the available data. Again, as in the classical case, there is not any estimator that can always dominate the alternatives, but interesting clear‐cut patterns are found. Consequently, and in practice, a suitable choice of a set of EV index estimators will jointly enable us to better estimate the EV index γ, the primary parameter of extreme events. 相似文献
894.
Merchanting is goods trade that does not cross the border of the firm's country of residence. Merchanting grew strongly in the last decade in several European economies and has become an important determinant of these countries’ current account. Because merchanting firms reinvest their earnings abroad to expand their international activities, this practice raises national savings in the home country without increasing domestic investment. This paper examines the empirical linkages between merchanting and the current account balance. Using a sample of 53 countries during 1980–2011, it shows that merchanting activity is a determinant of the medium‐term current account balance. 相似文献
895.
The opening up process of the eastern European countries is characterised by an increasing degree of trade integration with their Western neighbouring countries. Typically, the degree of East–West trade integration is assessed by comparing actual trade volumes with potential trade volumes projected from the gravity model parameters estimated for a group of countries that best represent normal trade relations. This approach, however, does not compare trade levels against a maximum level of trade feasible for the group of eastern European countries. This paper using a stochastic frontier specification of the gravity model is able to identify the efficiency of trade integration relative to maximum potential levels. The findings, based on a panel data set of bilateral exports from 17 Western European countries to the 10 new member states over the 1994–2007 period, indicate a high degree of East–West trade integration close to two‐thirds of frontier estimates, suggesting a low degree of trade resistances. 相似文献
896.
897.
Dean M. Hanink 《International Trade Journal》2013,27(1):103-105
Managing the Ocean: Resources. Research, Law. Edited by Jacques G. richardson. Mt. Airy, Maryland: Lomond Publications, Inc., 1985 相似文献
898.
Nicholas C. Williamson Steven M. Cramer Susan Myrden 《International Trade Journal》2013,27(3):258-300
This article presents methodology for identifying product categories that, if they were made the subjects of a specified state's export promotions, would hold promise for satisfying relevant needs of members of three key “stakeholder” groups regarding the outcomes of the governmentally sponsored export promotions: the World Trade Organization (WTO), managements of non-exporting, small- and- medium-sized (SME) manufacturing concerns, and governmental entities who are responsible for raising funds to support such promotions. Methodology is applied in the context of a state in the United States (North Carolina). The methodology is then applied in the context of a state in the United States (North Carolina). The presentations of the results of the application of the methodology at each of the 2-, 4- and 6-digit HS-coded product category levels are in each case followed by discussions of implications of the results. 相似文献
899.
900.
Willis J. Goudy Phyllis M. Goudy Myers 《Leisure Sciences: An Interdisciplinary Journal》2013,35(4):479-485
Retirement Communities: An American Original, by Michael E. Hunt, Allan G. Feldt, Robert W. Morans, Leon A. Pastalan, and Kathleen L. Vakalo. New York: Haworth Press. 1984. ISBN 0–86656–267–2. 278 pp. $29.95. Senior Settlers: Social Integration in Retirement Communities, by Nancy J. Osgood. New York: Praeger Publishers, 1982. ISBN 0–03–059792–7. 296 pp. $29.95. Life After Work: Retirement, Leisure, Recreation, and the Elderly, ed. Nancy J. Osgood. New York: Praeger Publishers. 1982. ISBN 0–03–060437–0. 372 pp. $32.95. Work and Retirement, by Stanley Parker. London: George Allen & Unwin. 1982. ISBN 0–04–658238‐X. 203 pp. $9.95 paper, $28.50, cloth. Adults and Their Leisure: The Need for Lifelong Learning, by John R. Verduin, Jr., and Douglas N. McEwen. Springfield, Ill: Charles C. Thomas. 1984. ISBN 0–398–04985–8. 170 pp. $17.50. 相似文献