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   21661篇
  免费   510篇
财政金融   4183篇
工业经济   1864篇
计划管理   3668篇
经济学   4532篇
综合类   178篇
运输经济   179篇
旅游经济   395篇
贸易经济   3398篇
农业经济   1092篇
经济概况   2651篇
邮电经济   31篇
  2021年   157篇
  2020年   276篇
  2019年   393篇
  2018年   423篇
  2017年   460篇
  2016年   440篇
  2015年   337篇
  2014年   494篇
  2013年   2234篇
  2012年   632篇
  2011年   687篇
  2010年   599篇
  2009年   704篇
  2008年   709篇
  2007年   599篇
  2006年   589篇
  2005年   523篇
  2004年   472篇
  2003年   519篇
  2002年   483篇
  2001年   437篇
  2000年   435篇
  1999年   447篇
  1998年   406篇
  1997年   398篇
  1996年   355篇
  1995年   342篇
  1994年   332篇
  1993年   348篇
  1992年   319篇
  1991年   311篇
  1990年   270篇
  1989年   270篇
  1988年   237篇
  1987年   236篇
  1986年   211篇
  1985年   361篇
  1984年   373篇
  1983年   344篇
  1982年   307篇
  1981年   273篇
  1980年   293篇
  1979年   279篇
  1978年   223篇
  1977年   233篇
  1976年   200篇
  1975年   168篇
  1974年   173篇
  1973年   170篇
  1971年   113篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
61.
We document producer price adjustment using a low‐inflation micro price dataset. On average 24% of prices adjust each month, with an average increase/decrease of 6%. Producer prices adjust more frequently than consumer prices, but their size of adjustment is typically smaller. Sectoral heterogeneity in the frequency of price adjustment is strongly related to heterogeneity in the cost structure. Fluctuations in aggregate producer price inflation occur to a large extent through variation in the relative share of upward and downward price adjustment.  相似文献   
62.
外资企业离开世界工厂 据报道,2007年有224家外资企业离开了珠三角,另有29840家港资企业(占大约80000家港资企业的37.3%)也有同样的计划。另一方面,自2007年初至今,已有103家韩资企业离开了北方制造业中心山东。  相似文献   
63.
This paper presents MAcMap–HS‐6, a database providing a consistent, ad valorem equivalent measure of tariff duties and tariff rate quotas for 163 countries and 208 partners, at the six‐digit level of the Harmonized System (5111 products), accounting for all preferential agreements. We describe the methodology used to compute and aggregate an ad valorem equivalent of applied protection. Emphasis is placed on minimizing the endogeneity bias in the aggregation procedure, while acknowledging structural differences in export specialization. The resulting quantitative assessment is illustrated by giving an overview of applied protection across the world in 2001, in terms of average as well as distribution.  相似文献   
64.
65.
66.
67.
We investigate intraday bid‐ask spreads (BAS), volatility, and trading activity of thinly traded equity index futures contracts on the Singapore Exchange. Contrary to previous findings, we find a rather flat BAS pattern during the trading day. However, consistent with past findings, an increase in risk widens the spread and a higher trading activity reduces it. When trading occurs in a day, spreads are reduced. No significant difference in volatility between days with and without trades was detected. When trades occur, quote revisions increase, and it is positively related to the number of trades. An increase in the number of quote revisions increases the likelihood of a transaction, and when quotes are current, revisions that are accompanied by trades carry new information. We provide evidence that contracts that are thinly traded may possess liquidity attributes as long as their price quotes remain current. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:455–486, 2003  相似文献   
68.
Supplying customer demand from comparable alternate inventory locations when an item is out of stock at its primary stocking point creates a virtual inventory for that item. The expectation is that if more inventories can be drawn upon, the inventory for an item would be lower, the fill rate would be higher, or both. While generally true that safety stocks will be lower, regular stocks, on the other hand, may rise with such cross filling of demand. In this study, a methodology is developed that balances the cross filling effects on both regular and safety stocks for determining whether an inventoried item should be cross‐filled. An example and guidelines are given to show how the methodology can be simplified and applied in practice.  相似文献   
69.
Close relationships between and among supply chain members are becoming more prevalent. However, there is lack of agreement in the literature and in practice concerning the characteristics of different interorganizational relationships. The resultant confusion is an obstacle to the progression of research and could cause problems among firms in a supply chain. Based on previous research and an exploratory study conducted with company executives responsible for supply chain management activities, this article seeks to introduce the concept of relationship magnitude (i.e., the extent or degree of closeness or strength of the relationship) and differentiate it from relationship type (i.e., classes of relationships that share common traits). Implications for managers and opportunities for future research are provided.  相似文献   
70.
In this continuing discussion on the role of industrial improvement areas the author extends the arguments to suggest how IIAs could be a progressive planning tool linking economic, property and land-use strategies.  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