首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   46171篇
  免费   694篇
财政金融   7977篇
工业经济   2901篇
计划管理   7534篇
经济学   10501篇
综合类   741篇
运输经济   192篇
旅游经济   502篇
贸易经济   8892篇
农业经济   1441篇
经济概况   5520篇
信息产业经济   45篇
邮电经济   619篇
  2021年   180篇
  2020年   287篇
  2019年   395篇
  2018年   2808篇
  2017年   2578篇
  2016年   1750篇
  2015年   473篇
  2014年   707篇
  2013年   2986篇
  2012年   1235篇
  2011年   2767篇
  2010年   2436篇
  2009年   2268篇
  2008年   2309篇
  2007年   2573篇
  2006年   789篇
  2005年   1035篇
  2004年   1140篇
  2003年   1229篇
  2002年   867篇
  2001年   681篇
  2000年   652篇
  1999年   540篇
  1998年   557篇
  1997年   512篇
  1996年   521篇
  1995年   464篇
  1994年   510篇
  1993年   520篇
  1992年   475篇
  1991年   505篇
  1990年   459篇
  1989年   383篇
  1988年   396篇
  1987年   387篇
  1986年   415篇
  1985年   586篇
  1984年   539篇
  1983年   545篇
  1982年   524篇
  1981年   454篇
  1980年   441篇
  1979年   454篇
  1978年   385篇
  1977年   348篇
  1976年   276篇
  1975年   269篇
  1974年   250篇
  1973年   243篇
  1972年   201篇
排序方式: 共有10000条查询结果,搜索用时 171 毫秒
111.
We employ panel data as well as country-specific models to uncover empirically the determinants of current account imbalances. We find evidence of slope heterogeneity likely rendering the fixed-effect estimator inconsistent. Mean group estimation is followed to overcome the latter difficulty. Both estimation techniques are evaluated by means of in- and out-of-sample criteria. The mean group estimator outperforms the fixed-effect approach and, moreover, only three economic variables are found to impact on the current account balance significantly. These are the government budget balance, the domestic output gap and the changes of the terms of trade. We finally propose a parsimonious dynamic model of the current account, including only these variables and illustrate that it has similar predictive accuracy as country-specific benchmark models. JEL no. F32, C23, C53  相似文献   
112.
113.
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   
114.
115.
The role of tourism is of vital economic importance, particularly for small countries with a privileged geographical location and favourable weather conditions. This paper examines the importance of tourism as a conditioning factor for higher regional growth in Portugal by employing the conditional convergence hypothesis of Barro and Sala-i-Martin, associated with the endogenous growth theory. The panel data estimation approach provides evidence of the positive impact of tourism (through the accommodation capacity) on the growth in per-capita income among the Portuguese regions, increasing the rate of convergence. Therefore, tourism can be considered as an alternative source for stimulating higher regional growth in Portugal, if the supply characteristics of this sector are improved.  相似文献   
116.
117.
118.
119.
120.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号