全文获取类型
收费全文 | 11502篇 |
免费 | 332篇 |
专业分类
财政金融 | 2376篇 |
工业经济 | 1110篇 |
计划管理 | 1972篇 |
经济学 | 2356篇 |
综合类 | 133篇 |
运输经济 | 123篇 |
旅游经济 | 218篇 |
贸易经济 | 2058篇 |
农业经济 | 585篇 |
经济概况 | 898篇 |
邮电经济 | 5篇 |
出版年
2023年 | 69篇 |
2021年 | 90篇 |
2020年 | 175篇 |
2019年 | 257篇 |
2018年 | 253篇 |
2017年 | 275篇 |
2016年 | 275篇 |
2015年 | 212篇 |
2014年 | 322篇 |
2013年 | 1297篇 |
2012年 | 357篇 |
2011年 | 396篇 |
2010年 | 362篇 |
2009年 | 473篇 |
2008年 | 445篇 |
2007年 | 387篇 |
2006年 | 381篇 |
2005年 | 351篇 |
2004年 | 330篇 |
2003年 | 347篇 |
2002年 | 312篇 |
2001年 | 272篇 |
2000年 | 274篇 |
1999年 | 237篇 |
1998年 | 221篇 |
1997年 | 234篇 |
1996年 | 199篇 |
1995年 | 190篇 |
1994年 | 184篇 |
1993年 | 169篇 |
1992年 | 153篇 |
1991年 | 160篇 |
1990年 | 138篇 |
1989年 | 120篇 |
1988年 | 116篇 |
1987年 | 125篇 |
1986年 | 94篇 |
1985年 | 152篇 |
1984年 | 189篇 |
1983年 | 159篇 |
1982年 | 140篇 |
1981年 | 110篇 |
1980年 | 120篇 |
1979年 | 101篇 |
1978年 | 81篇 |
1977年 | 90篇 |
1976年 | 74篇 |
1975年 | 53篇 |
1974年 | 63篇 |
1973年 | 56篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
Here we consider the hedging roles of a price futures contract versus a revenue futures contract. In the absence of idiosyncratic output risk, the revenue contract almost always dominates the price contract. Idiosyncratic output risk provides conditions under which the price contract should dominate. When production risk is largely idiosyncratic, a producer with an anticipated long actuals position might combine a long revenue futures position with a short price futures position. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:503–512, 2004 相似文献
42.
The purpose of this research was to investigate the effects that user task load level has on the relationship between an individual's trust in and subsequent use of a system's automation. Military decision-makers trust and use information system automation to make many tactical judgments and decisions. In situations of information uncertainty (information warfare environments), decision-makers must remain aware of information reliability issues and temperate their use of system automation if necessary. An individual's task load may have an effect on his use of a system's automation in environments of information uncertainty.It was hypothesized that user task load will have a moderating effect on the positive relationship between system automation trust and use of system automation. Specifically, in situations of information uncertainty (low trust), high task load will have a negative effect on the relationship. To test this hypothesis, an experiment in a simulated command and control micro-world was conducted in which system automation trust and individual task load were manipulated. The findings from the experiment support the positive relationship between automation trust and automation use found in previous research and suggest that task load does have a negative effect on the positive relationship between automation trust and automation use. Experiment participant who incurred a higher task load exhibited an over-reliance on their automated information systems to assist them in their decision-making activities. Such an over-reliance can lead to vulnerabilities of deception and suggests the need for automated deception detection capabilities. 相似文献
43.
Ronald H. Ballou 《Journal of Business Logistics》2005,26(2):143-164
Estimation of the inventory level for an entire class of items is a valuable time saver when control of inventories at the aggregate level, rather than the item level, is of interest. Inventory approximation by location in supply chain network configuration and evaluation of inventory control policy shifts, are two examples of application. In this article, various popular inventory policies are related to a general function known as an inventory turnover curve that expresses inventory levels from the combined demand of multiple items. By knowing some basic item characteristics of representative items in a product class, the type of inventory policy being used, and the current aggregate inventory level, an inventory turnover curve can be constructed. This resulting turnover curve can be used to estimate inventory levels within 4.6%, on the average, of theoretically predicted ones. 相似文献
44.
45.
Noreen Heraty David G. Collings 《International Journal of Training and Development》2006,10(2):164-174
This paper explores the landscape of training and development in the Republic of Ireland, a country with an impressive economic record in recent years. Both the Irish economic context and business context are explored. The national system for training and development and the surrounding policy and strategy context are set down. Survey data are drawn upon to examine the nature of training and development at organizational level. Here influence on training and development, levels of expenditure, the number of days per employee category and the dominant methods employed training and development are all discussed. Finally the academic study of training and development in the Republic of Ireland is examined. 相似文献
46.
47.
48.
49.
William Darity David K. Guilkey William Winfrey 《American journal of economics and sociology》1996,55(4):411-425
A bstract . By utilizing self-reported race and ancestry in the 1980 and 1990 USA censuses and the Blinder-Oaxaca decomposition technique, the extent of wage discrimination experienced by women and by men is examined across 50 ethnic/racial groups. Systematic evidence of negative discrimination is revealed in both census years for Asian, Indian, black (African-American), Vietnamese, Cuban, Mexican, Puerto Rican , and Native American males. To assess the charge that the Blinder-Oaxaca decomposition indicates cultural rather than discriminatory differentials, two additional data experiments are performed—one that controls for color and varies culture, and one that controls for culture and varies color. Race appears to matter. 相似文献
50.
Up in the Air: GTE's Experience in the MTA Auction for Personal Communication Services Licenses 总被引:2,自引:0,他引:2
David J. Salant 《Journal of Economics & Management Strategy》1997,6(3):549-572
In late 1994, GTE, one of the largest telecommunications firms in the world, entered an auction for the rights to provide personal communications services (PCS) using the electromagnetic spectrum. The administering agency, the Federal Communications Commission, adopted a novel multiple-round format for the PCS auction. The format presented GTE with a complex bidding problem. This article describes how the GTE bidding team answered the following question: Given its budget and valuations and the information available about rival bidders, how should GTE bid to achieve the best attainable outcome? 相似文献