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   24222篇
  免费   127篇
财政金融   4347篇
工业经济   1761篇
计划管理   4293篇
经济学   5267篇
综合类   268篇
运输经济   158篇
旅游经济   341篇
贸易经济   3512篇
农业经济   1078篇
经济概况   3238篇
邮电经济   86篇
  2021年   157篇
  2020年   240篇
  2019年   347篇
  2018年   377篇
  2017年   450篇
  2016年   453篇
  2015年   311篇
  2014年   495篇
  2013年   2132篇
  2012年   652篇
  2011年   708篇
  2010年   587篇
  2009年   697篇
  2008年   605篇
  2007年   578篇
  2006年   525篇
  2005年   500篇
  2004年   431篇
  2003年   500篇
  2002年   452篇
  2001年   455篇
  2000年   457篇
  1999年   502篇
  1998年   437篇
  1997年   429篇
  1996年   407篇
  1995年   349篇
  1994年   360篇
  1993年   404篇
  1992年   393篇
  1991年   406篇
  1990年   366篇
  1989年   341篇
  1988年   316篇
  1987年   309篇
  1986年   319篇
  1985年   484篇
  1984年   448篇
  1983年   417篇
  1982年   371篇
  1981年   387篇
  1980年   379篇
  1979年   382篇
  1978年   314篇
  1977年   323篇
  1976年   273篇
  1975年   234篇
  1974年   228篇
  1973年   231篇
  1972年   171篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
51.
    
I consider the possibility that respondents to the Survey of Professional Forecasters round their probability forecasts of the event that real output will decline in the future, as well as their reported output growth probability distributions. I make various plausible assumptions about respondents’ rounding practices, and show how these impinge upon the apparent mismatch between probability forecasts of a decline in output and the probabilities of this event implied by the annual output growth histograms. I find that rounding accounts for about a quarter of the inconsistent pairs of forecasts.  相似文献   
52.
    
Direct measures of attitudes, such as self‐reported evaluations of consumer products and brands, are vulnerable to biases that undermine their validity (i.e., social desirability, self‐deception, and self‐ignorance). In contrast, indirect measures, many of which rely on reaction time to index underlying associations, resist such biases. Here, one such indirect measure, the Implicit Association Test (IAT), is highlighted, and its promise and pitfalls in market research, evaluated. It is concluded that the IAT can serve as a viable and valuable methodological tool. Its diagnostic and predictive advantages, which have been empirically established, outweigh its practical and theoretical drawbacks, which can be satisfactorily addressed.  相似文献   
53.
    
Preston SH 《Medical economics》1997,74(21):85-6, 88, 90-5
  相似文献   
54.
    
Organ transplantation holds the potential to substantially restore the health of many otherwise terminally ill patients. That potential, however, is currently being denied full realization by a chronic and severe shortage of cadaveric organs that are made available for this use. In recent years, medical practitioners, social scientists, and others have debated the virtues of allowing markets for cadaveric organs to form as a way to end the current shortage. In this debate, market opponents have argued, inter alia, that (1) organ collections may fall with payment of positive prices and (2) the price required to equilibrate organ supply and demand would be high. On the other hand, proponents of organ markets have argued that financial inducements could save many lives and that the equilibrium price is likely to be low. While dozens of papers have been published debating this issue, to date no one has provided any empirical evidence to resolve these important questions of supply. This paper provides preliminary evidence suggesting that potential donors would be relatively responsive to financial inducements and, accordingly, that the price required to eliminate the current shortage of organs is surprisingly low. (JEL 118, L50)  相似文献   
55.
  总被引:1,自引:0,他引:1  
\"This paper tests a central prediction of vintage growth models of urban structure: that there are discontinuities in the population density function. The data set covers quarter sections in Chicago in 1980. Using such highly disaggregated data is critical because discontinuities are less likely to be found the larger is the unit of observation. Both a switching regression model and a nonparametric estimator reveal discontinuities and upward-sloping segments in the function, which supports the vintage growth model.\"  相似文献   
56.
57.
    
Various models or lenses have been used to predict and understand strategic decisions in organizations. This article examines four classes: (1) the unitary rational; (2) the organizational; (3) the political; and (4) the contextual. They are conceptualized as stemming from different assumptions about goal congruency and co-ordinative efficiency. the contextual view is especially highlighted, as it is a relatively new perspective, both organizationally and cognitively. A brief discussion is offered of disciplines and findings that either support or refute some of these models. Possible syntheses and reconciliations of the four views are explored, focusing on: (1) assumptional fit; (2) level of analysis; (3) cost of fashioning collective rationality; (4) information processing limits in organizational design; and (5) the role of adaptation lags and disequilibrium. the article concludes with a call for a meta-theory that places the various perspectives in a larger framework.  相似文献   
58.
59.
    
Recent Studies in the area of foreign exchange market efficiency have employed time series analysis to test for the absence of long-run equilibrium or cointegration relationships among the exchange rates for the major currencies. Cointegration directly violates the weak form of the Efficient Market Hypothesis in a speculative efficient market (Granger, 1986). In this study, we address the efficiency of the Tokyo spot foreign exchange market while updating the test procedures developed by Phillips and Ouliaris (1990), Johansen and Juselius (1990) and Johansen (1991). Cointegration is found to be absent, showing that the Tokyo spot market is consistent with the efficient market hypothesis.  相似文献   
60.
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