全文获取类型
收费全文 | 36254篇 |
免费 | 839篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 6390篇 |
工业经济 | 2657篇 |
计划管理 | 6267篇 |
经济学 | 8528篇 |
综合类 | 417篇 |
运输经济 | 313篇 |
旅游经济 | 564篇 |
贸易经济 | 6175篇 |
农业经济 | 1763篇 |
经济概况 | 3935篇 |
信息产业经济 | 4篇 |
邮电经济 | 81篇 |
出版年
2023年 | 193篇 |
2021年 | 258篇 |
2020年 | 476篇 |
2019年 | 718篇 |
2018年 | 861篇 |
2017年 | 929篇 |
2016年 | 858篇 |
2015年 | 573篇 |
2014年 | 891篇 |
2013年 | 3885篇 |
2012年 | 1190篇 |
2011年 | 1244篇 |
2010年 | 1098篇 |
2009年 | 1213篇 |
2008年 | 1073篇 |
2007年 | 1023篇 |
2006年 | 932篇 |
2005年 | 786篇 |
2004年 | 715篇 |
2003年 | 728篇 |
2002年 | 698篇 |
2001年 | 742篇 |
2000年 | 709篇 |
1999年 | 616篇 |
1998年 | 693篇 |
1997年 | 639篇 |
1996年 | 626篇 |
1995年 | 552篇 |
1994年 | 559篇 |
1993年 | 537篇 |
1992年 | 594篇 |
1991年 | 583篇 |
1990年 | 512篇 |
1989年 | 406篇 |
1988年 | 397篇 |
1987年 | 440篇 |
1986年 | 423篇 |
1985年 | 594篇 |
1984年 | 618篇 |
1983年 | 574篇 |
1982年 | 502篇 |
1981年 | 494篇 |
1980年 | 487篇 |
1979年 | 490篇 |
1978年 | 353篇 |
1977年 | 304篇 |
1976年 | 277篇 |
1975年 | 279篇 |
1974年 | 237篇 |
1973年 | 229篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
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
32.
33.
John E. Keith David L. Barkley 《Review of urban and regional development studies : RURDS : journal of the Applied Regional Conference》1991,3(1):60-77
A study of the location of three classifications of high-tech industries in rural areas was undertaken using ordinary least squares, Tobit, and a two-step estimation procedure suggested by Heckman (1976). The results indicate that the location decision for high tech firms is influenced primarily by the county population, adjacency to an SMSA, and the expenditures on public infrastructure (exclusive of education expenditures). However, location near interstate highways was generally not a significant factor. Results were similar between branch and unit (single ownership) plants. Some differences in signs of orders of magnitude occurred among the estimation procedures. Making a choice between Tobit and Heckman approaches depends upon the goal of the research. 相似文献
34.
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
35.
36.
37.
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
38.
39.
Recent research in finance has indicated that the institutional structure in which financial asset prices are determined can have a nontrivial impact on pricing. This report examines transaction level data for Treasury Note futures contracts traded at the Chicago Board of Trade (CBOT) to identify institutional, or market microstructure, impacts on the pricing of these contracts. Relatively few articles have conducted empirical research on the microstructure of U.S. futures trading due to the limited availability of comprehensive transaction level data from the futures exchanges. This report uses the CBOT's Computerized Trade Reconstruction database, a comprehensive transaction level dataset, to identify the price impact of the time duration between trades in a manner analogous to that of A. Dufour and R. F. Engle (2000). Unique differences from prior research include the application to futures contracts with their relative higher frequency of trading, as well as the investigation of the price impact of the number of active traders present on the trading floor and the trading volume. Subsequent price and sign of trade significantly relate to the time duration between trades, the number of floor brokers, and the trading volume. © 2004 Wiley Periodicals, Inc. Jrl. Fut Mark 24:965–980, 2004 相似文献
40.
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