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   14124篇
  免费   318篇
财政金融   2978篇
工业经济   1066篇
计划管理   2256篇
经济学   3019篇
综合类   152篇
运输经济   100篇
旅游经济   223篇
贸易经济   2250篇
农业经济   619篇
经济概况   1765篇
信息产业经济   2篇
邮电经济   12篇
  2023年   73篇
  2021年   84篇
  2020年   191篇
  2019年   253篇
  2018年   336篇
  2017年   333篇
  2016年   307篇
  2015年   204篇
  2014年   327篇
  2013年   1587篇
  2012年   384篇
  2011年   467篇
  2010年   424篇
  2009年   439篇
  2008年   401篇
  2007年   355篇
  2006年   331篇
  2005年   260篇
  2004年   269篇
  2003年   271篇
  2002年   272篇
  2001年   276篇
  2000年   290篇
  1999年   292篇
  1998年   299篇
  1997年   263篇
  1996年   221篇
  1995年   219篇
  1994年   235篇
  1993年   239篇
  1992年   262篇
  1991年   252篇
  1990年   200篇
  1989年   181篇
  1988年   165篇
  1987年   162篇
  1986年   167篇
  1985年   237篇
  1984年   253篇
  1983年   244篇
  1982年   211篇
  1981年   194篇
  1980年   168篇
  1979年   167篇
  1978年   157篇
  1977年   133篇
  1976年   123篇
  1975年   139篇
  1974年   99篇
  1973年   101篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
U.S. stocks are more volatile than stocks of similar foreign firms. A firm's stock return volatility can be higher for reasons that contribute positively (good volatility) or negatively (bad volatility) to shareholder wealth and economic growth. We find that the volatility of U.S. firms is higher mostly because of good volatility. Specifically, stock volatility is higher in the United States because it increases with investor protection, stock market development, new patents, and firm‐level investment in R&D. Each of these factors is related to better growth opportunities for firms and better ability to take advantage of these opportunities.  相似文献   
102.
103.
104.
105.
While prior consumer studies have adopted various theoretical perspectives to explain individuals' reactions to disasters, scant attention has been paid to the role of ontological security in shaping those responses. This study attempts to fill this knowledge gap by qualitatively exploring ontological security in two contexts: man-made and natural disasters. To this end, we conducted 35 focus groups in the UK, Germany, and France to address how people reacted to terrorist attacks and the COVID-19 pandemic respectively. Through thematic analysis, three themes emerged: fear versus anxiety, oneself versus others, and materialistic versus experiential purchases. Man-made disasters appear to elicit fear, concern for self, and a preference for materialistic purchases, whereas natural disasters seem to trigger anxiety, concern for others, and a preference for experiential purchases. Both types of disasters seem to evoke a desire to escape from reality. In closing, we discuss both transitory and prolonged threats to ontological security and how they shape individuals' behaviours while restoring their security.  相似文献   
106.
107.
108.
109.
Recent articles on leasing suggest five principles that should aid analysts to understand this durable, much misunderstood financial instrument. The principles are 1) the lessor must be happy too, 2) the operating inflows have nothing to do with the case, 3) financial, like physical, matter tends to be preserved, 4) debt is a function of after-tax flows, and 5) inability to use tax shelters cuts two ways. In this paper we illustrate these principles and use illustrations to demonstrate that each of these principles has merit. We argue as well that the impression, often left by the principles, that leasing seldom benefits all parties to the transaction is incorrect.  相似文献   
110.
As part of an investigation into the performance of heating systems and the effectiveness of energy saving measures, temperatures have been monitored in forty centrally heated homes. The addition of extra insulation had no effect on the way people operated their heating system or on the temperature level set in the main living room. However, bedrooms were warmer and the importance of individual room temperature controls demonstrated. Differences between people's thermal requirements in domestic and office environments are considered.  相似文献   
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