全文获取类型
收费全文 | 956篇 |
免费 | 54篇 |
专业分类
财政金融 | 151篇 |
工业经济 | 86篇 |
计划管理 | 150篇 |
经济学 | 152篇 |
综合类 | 2篇 |
运输经济 | 30篇 |
旅游经济 | 53篇 |
贸易经济 | 232篇 |
农业经济 | 18篇 |
经济概况 | 135篇 |
邮电经济 | 1篇 |
出版年
2024年 | 4篇 |
2023年 | 16篇 |
2022年 | 7篇 |
2021年 | 13篇 |
2020年 | 34篇 |
2019年 | 54篇 |
2018年 | 68篇 |
2017年 | 61篇 |
2016年 | 46篇 |
2015年 | 31篇 |
2014年 | 59篇 |
2013年 | 147篇 |
2012年 | 48篇 |
2011年 | 43篇 |
2010年 | 46篇 |
2009年 | 46篇 |
2008年 | 72篇 |
2007年 | 25篇 |
2006年 | 18篇 |
2005年 | 15篇 |
2004年 | 10篇 |
2003年 | 11篇 |
2002年 | 13篇 |
2001年 | 18篇 |
2000年 | 20篇 |
1999年 | 7篇 |
1998年 | 15篇 |
1997年 | 6篇 |
1996年 | 9篇 |
1995年 | 6篇 |
1994年 | 6篇 |
1992年 | 2篇 |
1991年 | 2篇 |
1990年 | 6篇 |
1989年 | 4篇 |
1988年 | 1篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 8篇 |
1984年 | 1篇 |
1983年 | 3篇 |
1982年 | 2篇 |
1980年 | 1篇 |
1973年 | 2篇 |
排序方式: 共有1010条查询结果,搜索用时 15 毫秒
1.
In this paper, examination of the possibility of a ‘double marginalization’ problem existing in the Korean telecommunication industry is conducted and suggestions are made for the provision of a new scheme to eliminate this possibility by changing the pricing system for fixed-to-mobile calls. Based on five key economic characteristics in the Korean mobile market, a simple model for double marginalization in the telecommunication market is introduced. Evidence was found to suggest that a double marginalization problem is likely to exist within Korea's telecommunication industry as it is presently structured, and that this problem is further likely to have an adverse effect on the industry by inflating the price of fixed-to-mobile calls. Two alternatives are proposed to effectively remedy this double marginalization issue. It is also shown that prices of fixed-to-mobile calls could be lowered by changing the caller pays principle into a receiver pays principle. 相似文献
2.
四川大学国家大学科技园 《中国科技产业》2008,(12)
搭建先进创新平台、构筑特色服务体系是川大科技园自建园以来就坚持不懈的目标和任务.通过近十年的努力,由于先进创新平台与特色服务体系的搭建和构筑,川大科技园已在科技成果转化.高新技术企业孵化和创新创业人才培养三大中心任务上取得丰硕成果,现已成为国际化.开放化和具有持续创新能力的国家一流大学科技园区. 相似文献
3.
Walter G. Park 《Journal of Macroeconomics》1997,19(4):753-769
This paper tests the permanent income hypothesis (PIH) for public consumption. Unlike private agents, a government is a representative national, infinitely-lived agent that usually faces no liquidity constraints. Thus, the expectation is that the PIH restrictions should not be rejected for public consumption. However, using U.S. data, the paper is unable to find evidence supporting the permanent income model of public consumption. Public consumption is found to be sensitive to lagged public income and too smooth relative to permanent public income. The results therefore cast doubt on the characterization of the public sector as a social welfare optimizing agent. 相似文献
4.
In this paper, we examine a trader's order choice between market and limit orders using a sample of orders submitted through NYSE SuperDot. We find that traders place more limit orders relative to market orders when: (1) the spread is large, (2) the order size is large, and (3) they expect high transitory price volatility. A rise in informational volatility appears neither to increase nor decrease the placement of limit orders. We also find that a rise in lagged price volatility decreases the size of spread, which is driven by the increase in the placement of limit orders. 相似文献
5.
Nilakshi Borah Liu Pan Jung Chul Park Nan Shao 《Review of Quantitative Finance and Accounting》2018,51(3):683-718
We find that firm value is reduced via industrial diversification and this reduction in value depends upon a firm’s technology intensity. We consider that asymmetric information problems are more severe in technology intensive industries and find that high tech industry firms present distinctly larger value reduction when compared to low tech industry firms. The negative valuation effect is greater for firms that have a relatively larger amount of intangible assets and greater R&D capital. We determine that our findings are robust to different estimation methods and alternative excess value measures. 相似文献
6.
We review the growth experience of middle-income countries. Economic factors associated with growth appear to differ between middle-income and other countries. The efficiency of the financial system is importantly related to the growth rate in low- and middle-income countries, but appears to matter less as one moves up the income scale. Demographic variables also matter importantly in low-income countries. In middle-income countries, in contrast, measures of the financial system no longer appear to matter as importantly, as if inefficiencies in banking and financial systems are no longer as binding a constraint as at earlier stages of financial development; nor are demographic variables as important as before. At this point, other variables gain a growing role: these include whether the country experiences a banking or currency crisis, the extent of non-foreign direct investment capital inflows, and government debt as a share of gross domestic product. 相似文献
7.
Juyeon Park Dong-Eun Kim MyungHee Sohn 《International Journal of Technology and Design Education》2011,21(4):505-517
The purpose of this study is to explore the effectiveness of 3D simulation technology for enhancing spatial visualization
skills in apparel design education and further to suggest an innovative teaching approach using the technology. Apparel design
majors in an introductory patternmaking course, at a large Midwestern University in the United States, participated in this
study. Three different teaching methods (lecture, 3D simulation instruments, and paper patternmaking) were employed in consecutive
instructional phases, within a single day. A short questionnaire devised to assess students’ visualization abilities and overall
evaluation on the three different teaching methods was administered to the students after each of the three phases. Overall,
students’ abilities to visualize 2D patterns onto a human body were improved by all three teaching methods. The 3D simulation
instruments anchored positive effects of training on spatial visualization abilities between lecture and paper patternmaking
practices. The results affirm that 3D simulation technology has positive potential as an efficient instructional tool for
improving students’ visualization skills in apparel design. 相似文献
8.
9.
This study examines the market's reaction to dividend omission announcements and finds that if dividends are skipped to preserve cash for good investments, investors do not necessarily regard the omission as negative information. Markets penalize firms for dividend omissions only in the absence of a good stream of investments. In addition, the positive relation between investment opportunity and abnormal stock returns around the announcements is stronger when the level of information asymmetry between management and the rest of the market participants is low. Additional tests reveal that good omitters overcome underperformance faster in the post period. Overall, the results suggest that financial markets interpret differently the information conveyed in the announcement of dividend omission depending on the firm's future prospects. 相似文献
10.
Joint space multidimensional scaling maps are often utilized for positioning analyses and are estimated on survey samples
of consumer preferences, choices, considerations, or intentions so as to provide a concise spatial depiction of the competitive
landscape including relevant dimensions or attributes, competing brands, and consumers in the same joint space representation.
Care has to be given concerning the underlying scale properties of such survey data so as not to distort the resulting joint
space positioning map. We present a new joint space multidimensional scaling procedure for positioning analyses for displaying
the structure in such survey data when such common ordered successive category measurement scales such as Likert, Edwards,
semantic differential, etc., are employed. We present the technical details of this stochastic ordered preference multidimensional
scaling vector model as well as the maximum likelihood estimation-based algorithm devised for parameter estimation. Favorable
comparisons are made with several existent multidimensional scaling methods in representing the internal structure for such
data in marketing positioning studies. An actual commercial positioning application concerning large sports utility vehicles
consideration to buy judgments is presented with predictive validation comparisons with other multidimensional scaling joint
space procedures. 相似文献