全文获取类型
收费全文 | 23360篇 |
免费 | 500篇 |
专业分类
财政金融 | 4121篇 |
工业经济 | 1640篇 |
计划管理 | 4051篇 |
经济学 | 5490篇 |
综合类 | 246篇 |
运输经济 | 179篇 |
旅游经济 | 366篇 |
贸易经济 | 3870篇 |
农业经济 | 1154篇 |
经济概况 | 2666篇 |
信息产业经济 | 3篇 |
邮电经济 | 74篇 |
出版年
2023年 | 115篇 |
2021年 | 167篇 |
2020年 | 307篇 |
2019年 | 483篇 |
2018年 | 517篇 |
2017年 | 549篇 |
2016年 | 533篇 |
2015年 | 359篇 |
2014年 | 582篇 |
2013年 | 2481篇 |
2012年 | 792篇 |
2011年 | 830篇 |
2010年 | 716篇 |
2009年 | 813篇 |
2008年 | 746篇 |
2007年 | 646篇 |
2006年 | 625篇 |
2005年 | 547篇 |
2004年 | 474篇 |
2003年 | 482篇 |
2002年 | 428篇 |
2001年 | 509篇 |
2000年 | 458篇 |
1999年 | 419篇 |
1998年 | 475篇 |
1997年 | 429篇 |
1996年 | 428篇 |
1995年 | 363篇 |
1994年 | 374篇 |
1993年 | 359篇 |
1992年 | 366篇 |
1991年 | 381篇 |
1990年 | 350篇 |
1989年 | 260篇 |
1988年 | 267篇 |
1987年 | 274篇 |
1986年 | 251篇 |
1985年 | 366篇 |
1984年 | 362篇 |
1983年 | 335篇 |
1982年 | 291篇 |
1981年 | 288篇 |
1980年 | 292篇 |
1979年 | 280篇 |
1978年 | 229篇 |
1977年 | 184篇 |
1976年 | 184篇 |
1975年 | 164篇 |
1974年 | 151篇 |
1973年 | 150篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
21.
22.
Timothy M. Devinney 《Journal of Product Innovation Management》1992,9(3):222-231
The historic focus of new products research has been on the ability of new products to enhance the profitability and competitive position of the innovating firm. In this article, Timothy Devinney shows that there exists an overlooked and potentially significant side effect associated with new product innovations: financial risk changes. He reports that significant financial risk changes occurred in approximately 50% of the new product announcements he examined. The magnitude of these financial risk changes translates into overestimates or underestimates of the firm's cost of capital by 17% to 18% and is strongly and positively related to the size of the firm and the firm's new product innovation activity. 相似文献
23.
J. J. M. Kremers 《De Economist》1987,135(3):340-366
Summary In The Netherlands public debt management is in the hands of the budgetary policy-maker, whose recourse to the capital market can exceed or fall short of the total borrowing requirement in order to absorb or create liquidity. The conduct of that policy since the early 1960's is analyzed in this paper, emphasizing the importance of medium-term control over the public finances as a prerequisite for the ability of debt management to make a flexible contribution to monetary policy. During the 1960's this condition was satisfied and debt management followed a stable countercyclical pattern which, however, was abandoned after the early 1970's as the public finances swung into substantial disequilibrium.The author thanks J. Boughton, L. Bovenberg, D. Hendry, P. Masson, J. Muellbauer, and the referees for comments on earlier versions. However, the views expressed are his alone and do not necessarily represent those of the International Monetary Fund. 相似文献
24.
25.
In this paper we develop a vintage model to gain a better understanding of the semiconductor industry and its role in recent U.S. productivity gains. Unlike previous work, in our model the observed price declines of individual chips are driven by the introduction of better vintages rather than by learning economies. Dominated chips, nonetheless, continue to be produced, for a time, due to sunk investments in chip‐specific production equipment. The model lends partial support to Jorgenson's hypothesis that an exogenous increase in Moore's Law could have generated the more rapid price declines, and faster productivity growth, seen after 1995. 相似文献
26.
27.
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
28.
29.
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
30.