全文获取类型
收费全文 | 35342篇 |
免费 | 769篇 |
专业分类
财政金融 | 6715篇 |
工业经济 | 2577篇 |
计划管理 | 5914篇 |
经济学 | 8070篇 |
综合类 | 379篇 |
运输经济 | 261篇 |
旅游经济 | 524篇 |
贸易经济 | 5765篇 |
农业经济 | 1663篇 |
经济概况 | 4154篇 |
信息产业经济 | 4篇 |
邮电经济 | 85篇 |
出版年
2023年 | 177篇 |
2021年 | 223篇 |
2020年 | 455篇 |
2019年 | 674篇 |
2018年 | 786篇 |
2017年 | 810篇 |
2016年 | 779篇 |
2015年 | 532篇 |
2014年 | 848篇 |
2013年 | 3777篇 |
2012年 | 1120篇 |
2011年 | 1213篇 |
2010年 | 1075篇 |
2009年 | 1182篇 |
2008年 | 1086篇 |
2007年 | 955篇 |
2006年 | 910篇 |
2005年 | 765篇 |
2004年 | 712篇 |
2003年 | 713篇 |
2002年 | 673篇 |
2001年 | 746篇 |
2000年 | 722篇 |
1999年 | 671篇 |
1998年 | 743篇 |
1997年 | 664篇 |
1996年 | 620篇 |
1995年 | 568篇 |
1994年 | 575篇 |
1993年 | 560篇 |
1992年 | 593篇 |
1991年 | 598篇 |
1990年 | 528篇 |
1989年 | 411篇 |
1988年 | 408篇 |
1987年 | 409篇 |
1986年 | 393篇 |
1985年 | 570篇 |
1984年 | 582篇 |
1983年 | 554篇 |
1982年 | 475篇 |
1981年 | 462篇 |
1980年 | 434篇 |
1979年 | 424篇 |
1978年 | 361篇 |
1977年 | 302篇 |
1976年 | 290篇 |
1975年 | 284篇 |
1974年 | 243篇 |
1973年 | 233篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
We argue that firms with interdependent worker productivity, team production, have a higher cost of absence and, as a consequence, spend additional resources on monitoring absence. As a result, firms with team production should have lower absence rates. We estimate the determinants of absence for blue‐collar workers using a sample of German manufacturing establishments. Workplace teams are used as a proxy for team production. The estimates reveal that firms with teams have lower absence rates, as do smaller establishments. The size effect, however, is unique to establishments with teams, which fits prior theoretical work that has not been previously tested. 相似文献
42.
A subclass of monotonic transferable utility (T.U.) games is studied: average monotonic games. These games are totally balanced. We prove that the core coincides with both the bargaining set à la Davis and Maschler and the bargaining set à la Mas-Colell. To obtain this result a technique based on reduced games is used. Journal of Economic Literature Classification Number: C71 相似文献
43.
44.
The purpose of this study was to assess the basis behavior of the Live Cattle Futures contract at the Chicago Mercantile Exchange (CME) before and after the 1995 contract changes. Additionally, an alternative method of basis calculation utilizing weighted mean futures prices versus settlement futures prices was compared to determine which method provides a better representation of the basis level. Within a regression model with heteroskedascity error framework, we found that the level of nearby basis in the period after June 1995 has shifted lower and the average monthly open interest of net commercial long positions has substantially increased after the contract modifications. These empirical results are consistent with the notion that more long activity entered the market in response to the contract modifications. Additionally, an alternative (new) measure of basis calculation (cash price minus weighted mean futures price) produced similar results to two other commonly used measures. In conclusion, the 1995 contract changes have neither increased nor decreased the volatility of live cattle basis. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:557–590, 2004 相似文献
45.
This study examines how two dimensions of strategic orientation (customer and competitor orientation) influence logistics and market performance. Two capabilities, operational flexibility and collaboration, are studied. Data were collected from manufacturers working with third party logistics providers. The findings suggest that customer and competitor orientations have different influences upon performance when leveraged through the capabilities. Competitor orientation, while having a detrimental direct effect on logistics performance, appears to be the better strategic approach, when supported with operational flexibility since it results in enhanced logistics (efficiency) and market (effectiveness) performance. Customer orientation, on the other hand, greatly improves logistics performance, i.e., internal efficiency. 相似文献
46.
Several papers have been published demonstrating the positive effects a single, reputable ally has on evaluations of a focal brand. Interestingly, little research has been published examining the effects of multiple brand allies. We examine the effect of an alliance with two, one, or zero well-known brand allies on evaluations of a previously unknown focal brand. The presence of a single brand ally significantly increased perceived quality and hedonic and utilitarian attitudes. While multiple alliances improved focal brand evaluations relative to the no ally condition, the second ally did not increase evaluations relative to the single ally condition. 相似文献
47.
48.
49.
50.
The notion that prices impound a wide array of information, including market expectations, has led to earnings forecast models conditioned on prices. Yet, presumably, analysts' forecasts capture both public information and certain private information not previously impounded in prices. Accordingly, price-based models are seemingly an inefficient, and less effective, source of expecta-tions. This article investigates this hypothesis using financial analysts', price-based, and naive forecasts. Results indicate that analysts' forecasts (1) are at least as accurate as price-based and naive models, and (2) yield better expectations for market tests relating returns and earnings. These inferences are robust across different information environments. The evidence suggests that analysts either possess private information or are more effective information processors, or both. 相似文献