全文获取类型
收费全文 | 50242篇 |
免费 | 1000篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 9303篇 |
工业经济 | 3963篇 |
计划管理 | 8355篇 |
经济学 | 11114篇 |
综合类 | 605篇 |
运输经济 | 311篇 |
旅游经济 | 768篇 |
贸易经济 | 7913篇 |
农业经济 | 2516篇 |
经济概况 | 6306篇 |
信息产业经济 | 3篇 |
邮电经济 | 86篇 |
出版年
2021年 | 284篇 |
2020年 | 491篇 |
2019年 | 665篇 |
2018年 | 875篇 |
2017年 | 883篇 |
2016年 | 844篇 |
2015年 | 625篇 |
2014年 | 932篇 |
2013年 | 4806篇 |
2012年 | 1334篇 |
2011年 | 1452篇 |
2010年 | 1223篇 |
2009年 | 1437篇 |
2008年 | 1396篇 |
2007年 | 1324篇 |
2006年 | 1197篇 |
2005年 | 1128篇 |
2004年 | 1079篇 |
2003年 | 1076篇 |
2002年 | 1021篇 |
2001年 | 990篇 |
2000年 | 1024篇 |
1999年 | 907篇 |
1998年 | 921篇 |
1997年 | 907篇 |
1996年 | 907篇 |
1995年 | 816篇 |
1994年 | 873篇 |
1993年 | 838篇 |
1992年 | 856篇 |
1991年 | 882篇 |
1990年 | 774篇 |
1989年 | 630篇 |
1988年 | 662篇 |
1987年 | 656篇 |
1986年 | 705篇 |
1985年 | 992篇 |
1984年 | 982篇 |
1983年 | 948篇 |
1982年 | 894篇 |
1981年 | 841篇 |
1980年 | 784篇 |
1979年 | 814篇 |
1978年 | 657篇 |
1977年 | 580篇 |
1976年 | 461篇 |
1975年 | 486篇 |
1974年 | 429篇 |
1973年 | 393篇 |
1972年 | 338篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
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
72.
73.
John C. Taylor Stanley E. Fawcett George C. Jackson 《Journal of Business Logistics》2004,25(2):119-137
The purpose of this article is to study the level of “in‐stock” customer service performance being offered in the catalog channel of distribution. The article provides benchmark information for the catalog industry. More importantly, the article serves as one test of the effectiveness of the modern supply chain, where the expectation is for near perfect orders. Customer service levels are studied by using an empirical observation methodology in which catalog retailer's in‐stock performance was measured. Comparisons are made across item type, season, retailer type, and days from catalog receipt. Overall, items were out‐of‐stock during 15.9% of all checkpoints, compared to an 11.8% stock‐out rate in an earlier study of bricks and mortar retailers. 相似文献
74.
75.
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
76.
77.
78.
J. Kol 《De Economist》2004,152(2):273-296
Jan Tinbergen's scientific writings cover six main areas of research. His articles in De Economist represent these areas; in some cases the contributions to De Economist were of a pioneering nature (business cycles, economic models, economic integration); in others De Economist was the first or even single outlet for Tinbergen's work. This article provides an overview of these contributions. The wide scope of Tinbergen's areas of research goes together with a unity in approach, the characteristics of which are: policy relevance, quantification and measurement, balance in analysis and presentation, and learning from experience. Tinbergen's articles in De Economist bear witness to this approach which at the time also met with scepticism and resistance as this overview shows. According to Houthakker, Tinbergen's main contribution may be that, amidst the pleas of interest groups and the slogans of the laity, an attempt is made that the voice of the professional economic researcher be heard. Tinbergen's work still sets an agenda for both economic research and policy making. 相似文献
79.
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
80.
The structure of marketing channel relationships 总被引:3,自引:0,他引:3
Distribution channel research has been advanced in recent years by contributions based on the political economy paradigm,
transaction cost analysis, and relationship marketing. Drawing on these bodies of thought, we propose a new conceptualization
of the structure of marketing channel relationships. Relationship structure is defined in terms of decision-making structure
and operational integration. The proposed model of channel structure antecedents and consequences is consistent with the major
research paradigms but extends beyond simple categorical assemblages of constructs to provide an ordered set of relationships
based on theory and empirical research. This conceptualization reconciles some apparent contradictions in the literature and
provides a clear focus for structure, process, and performance research in channels.
He received his Ph.D. in marketing from Louisiana State University. He has published in the areas of marketing channels, retailing,
and logistics. His work has appeared in theJournal of Marketing Research, Journal of Marketing, Journal of Retailing, Journal of Business Research, Journal of Marketing
Channels, International Journal of Physical Distribution and Materials Management, Journal of Marketing Education, and others.
He served as the managing director of public relations with the Federal Express Corporation before entering the Ph.D. program
at Alabama. He holds a B.B.A. in accountancy from the University of Mississippi and an M.A. in marketing from the University
of Alabama. 相似文献