全文获取类型
收费全文 | 38968篇 |
免费 | 864篇 |
专业分类
财政金融 | 7305篇 |
工业经济 | 2903篇 |
计划管理 | 6522篇 |
经济学 | 8772篇 |
综合类 | 455篇 |
运输经济 | 237篇 |
旅游经济 | 613篇 |
贸易经济 | 5860篇 |
农业经济 | 1988篇 |
经济概况 | 5094篇 |
信息产业经济 | 2篇 |
邮电经济 | 81篇 |
出版年
2021年 | 218篇 |
2020年 | 374篇 |
2019年 | 500篇 |
2018年 | 703篇 |
2017年 | 687篇 |
2016年 | 650篇 |
2015年 | 481篇 |
2014年 | 719篇 |
2013年 | 3768篇 |
2012年 | 1008篇 |
2011年 | 1105篇 |
2010年 | 916篇 |
2009年 | 1090篇 |
2008年 | 1114篇 |
2007年 | 980篇 |
2006年 | 918篇 |
2005年 | 911篇 |
2004年 | 853篇 |
2003年 | 873篇 |
2002年 | 774篇 |
2001年 | 794篇 |
2000年 | 792篇 |
1999年 | 718篇 |
1998年 | 713篇 |
1997年 | 703篇 |
1996年 | 720篇 |
1995年 | 657篇 |
1994年 | 692篇 |
1993年 | 663篇 |
1992年 | 653篇 |
1991年 | 674篇 |
1990年 | 600篇 |
1989年 | 478篇 |
1988年 | 502篇 |
1987年 | 475篇 |
1986年 | 520篇 |
1985年 | 757篇 |
1984年 | 728篇 |
1983年 | 711篇 |
1982年 | 679篇 |
1981年 | 635篇 |
1980年 | 585篇 |
1979年 | 613篇 |
1978年 | 526篇 |
1977年 | 460篇 |
1976年 | 377篇 |
1975年 | 374篇 |
1974年 | 349篇 |
1973年 | 305篇 |
1972年 | 273篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
Drs. W. Th. Vogelaar 《De Economist》1948,96(1):681-692
Eindhoven, September 1948. 相似文献
83.
84.
This paper develops and estimates models of family and sex-specific emigration, as well as the sex composition of this emigration, from 12 European source countries to the U.S. for the period 1870–1910. The models are based on the distinction between economic migrants (males, single females, and some married females) and tied or trailing migrants (females) and are estimated with panel data, including data that relate to the occupational/industrial structure of male and female economic activity in source countries. Hausman-Taylor instrumental variable estimates suggest that although both males and females responded to labor-market signals, males were more responsive than females to per capita GDP differences. Moreover, compared to the rest of Europe, Ireland, and Scandinavia were the sources of many young, single male, and female migrants, who responded strongly to gaps in economic opportunities. In fact, much of the European response to such gaps appears to be due to migrants from Ireland and Scandinavia. Females tended to originate in English-speaking countries and countries that were agriculturally oriented. Service and manufacturing jobs in source countries discouraged the migration of females relative to males. Males tended to follow recent migrants more than females, but females responded more to long-term influences as measured by stocks of migrants from their source countries who had previously settled in the U.S. Countries with high birth rates had relatively fewer female emigrants, whereas those with high rates of natural increase 20 years earlier experienced relatively more male emigration. Intact families, other family members (including family-strategy male migrants and trailing female migrants), and single males and females responded strongly to economic incentives, but the singles were most responsive followed by family-strategy males. 相似文献
85.
86.
W. Scott Bauman C. Mitchell Conover Don R. Cox 《The Journal of Financial Research》2002,25(2):169-186
Previous research finds that large companies previously judged to be excellent growth companies have subsequently been poor investments. We examine small companies selected by Business Week on the basis of multiple criteria used in annual articles featuring highly rated growth companies. We study the investment performance over the three years before eleven annual Business Week publications and the three years after publication. We find positive excess returns in the pre‐publication period, but negative excess returns in the post‐publication period. This reversal in investment performance appears to be due to a mean‐reversion tendency in operating performance, in which the earnings and the past rates of return on capital of such companies subsequently decrease significantly. 相似文献
87.
88.
89.
90.