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   13388篇
  免费   235篇
财政金融   2674篇
工业经济   1007篇
计划管理   2026篇
经济学   2883篇
综合类   520篇
运输经济   85篇
旅游经济   204篇
贸易经济   1880篇
农业经济   661篇
经济概况   1672篇
邮电经济   11篇
  2021年   71篇
  2020年   144篇
  2019年   206篇
  2018年   217篇
  2017年   244篇
  2016年   213篇
  2015年   171篇
  2014年   252篇
  2013年   1357篇
  2012年   320篇
  2011年   395篇
  2010年   348篇
  2009年   346篇
  2008年   386篇
  2007年   318篇
  2006年   236篇
  2005年   234篇
  2004年   245篇
  2003年   258篇
  2002年   265篇
  2001年   274篇
  2000年   316篇
  1999年   235篇
  1998年   252篇
  1997年   261篇
  1996年   228篇
  1995年   226篇
  1994年   235篇
  1993年   282篇
  1992年   255篇
  1991年   237篇
  1990年   220篇
  1989年   185篇
  1988年   177篇
  1987年   172篇
  1986年   184篇
  1985年   241篇
  1984年   300篇
  1983年   253篇
  1982年   245篇
  1981年   263篇
  1980年   231篇
  1979年   240篇
  1978年   199篇
  1977年   187篇
  1976年   169篇
  1975年   135篇
  1974年   138篇
  1973年   124篇
  1972年   83篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
51.
Summary Standard laboratory posted-offer markets respond slowly and incompletely to demand shocks. In these one-sided markets, where sellers control the setting of prices, very little information is transmitted via the process of exchange. For this reason, traders have trouble distinguishing randomness in their own experience from changes in market fundamentals. This paper reports the results of twelve laboratory markets conducted to assess whether some common variants to standard posted-offer rules can correct the adjustment deficiences. Although discounting, multiple postings and excess demand information all improve performance, we find that response remains poor, and efficiencies low.Support for this research was provided by the National Science Foundation (SBR 9319842 and SBR 9320044), and the University of Virginia Bankard Fund. Data are archived at FTP address: fido.econlab.arizona.edu. We wish to thank Charles Plott and Shyam Sunder for useful comments on an earlier draft of this paper. The usual disclaimer applies.  相似文献   
52.
The purpose of this paper is to examine changes in stock return variances following option introduction. The sample consists of National Market System stocks and employs both transaction returns and returns based on bid and ask quotes. Variances are decomposed into portions attributable to bid-ask spreads, return autocorrelations, and intrinsic variances. Spreads play a negligible role in explaining variance changes. A generally positive component to short-term autocorrelations falls following option introduction, increasing variances over short holding periods. Intrinsic variances fall prior to the October 1987 crash, but do not change after the crash with option introduction.  相似文献   
53.
54.
Migration from the mountain areas of pre-industrial Europe has been seen as the product of poverty. While hardship controlled the strategies of the more marginalized households, better placed families used their migration experience to establish themselves in commerce. Over generations they used contacts and kinship systems to develop important informal trading networks. It is difficult to establish the effects of this hidden activity on local mountain economies, but dowry payments and post mortem inventories are used to expose the impact of inflowing capital and its circulation.  相似文献   
55.
56.
57.
58.
In this paper we re-examine the effect of 12b–1 payments on mutual fund expense ratios by analyzing data from 1988 through 1991. The findings are consistent with previous studies that find charges are a dead-weight cost borne by shareholders. However, we show that this cost increases over time.  相似文献   
59.
Prior to the sixteenth century, the Indian Ocean trading network was one of the wealthiest commercial regions in the world. It included states of East Africa, the Arabian peninsula, the Indian subcontinent, Southeast Asia, China and Japan. By circumnavigating Africa, Portugal was the first European nation to gain access to the region. Through the exercise of naval superiority, blockading of strategic shipping lanes, imposition of duties and expulsion of Swahili and Muslim merchants, Portugal exercised a mercantile monopoly which ultimately led to the region’s rapid economic decline. Using rare historical documents from Po rtugal and Africa, this study traces the effects of Portuguese expansion on the economies of East Africa and trade in the Indian Ocean.  相似文献   
60.
We examine the effect of 269 cross‐border listings on rivals in the listing and domestic markets and find that U.S. rivals experience significant gains whereas domestic rivals do not. Both competitive and information effects are important in explaining the reaction of U.S. rivals. Regarding the competitive effects, the reaction of rivals is less favorable when listings originate in developed countries and more favorable when listing firms do not have prior operating presence in the United States. Regarding the information effects, the reaction is less favorable when listings are combined with equity offerings and more favorable when the listing is the first to occur within an industry.  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