首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2191篇
  免费   131篇
  国内免费   2篇
财政金融   397篇
工业经济   151篇
计划管理   396篇
经济学   413篇
综合类   41篇
运输经济   50篇
旅游经济   94篇
贸易经济   439篇
农业经济   93篇
经济概况   247篇
邮电经济   3篇
  2024年   6篇
  2023年   24篇
  2022年   21篇
  2021年   34篇
  2020年   61篇
  2019年   98篇
  2018年   116篇
  2017年   127篇
  2016年   90篇
  2015年   64篇
  2014年   110篇
  2013年   276篇
  2012年   112篇
  2011年   126篇
  2010年   121篇
  2009年   108篇
  2008年   135篇
  2007年   87篇
  2006年   66篇
  2005年   58篇
  2004年   27篇
  2003年   39篇
  2002年   35篇
  2001年   39篇
  2000年   29篇
  1999年   24篇
  1998年   22篇
  1997年   19篇
  1996年   30篇
  1995年   16篇
  1994年   12篇
  1993年   14篇
  1992年   9篇
  1991年   7篇
  1990年   8篇
  1989年   12篇
  1988年   6篇
  1987年   9篇
  1986年   12篇
  1985年   15篇
  1984年   10篇
  1983年   12篇
  1982年   9篇
  1980年   8篇
  1979年   6篇
  1978年   6篇
  1977年   5篇
  1976年   5篇
  1974年   5篇
  1969年   4篇
排序方式: 共有2324条查询结果,搜索用时 0 毫秒
91.
The price of parking is often considered an important tool with which to influence transport choice but, since many local authorities have limited control over off-street charges and since parking charges have no direct impact on through traffic, its influence on overall travel demand may be limited. Road user charges, on the other hand, do appear to offer an effective means of influencing overall demand. The problem is that public acceptance of such charges is low unless some obvious “carrot” can be identified. This paper explores the possibility that the removal of parking charges might be that “carrot”. Our analysis suggests that, although the removal of parking charges would reduce revenues and dilute the reduction in demand caused by the introduction of road charges, the combined effect might, in certain circumstances, be more beneficial to the local economy and might still yield a net increase in revenue. Given the incidence of impacts, it also appears that a combined scheme would be more equitable and might stand a greater chance of achieving public acceptance than a more conventional road charging scheme. The paper identifies the circumstances in which a combined scheme might work well and outlines the detailed analysis that would be necessary to confirm this.  相似文献   
92.
This paper revisits the resource curse phenomenon in China and differs from the previous studies in four respects: (i) City-level data is used; (ii) A spatial variable is constructed to estimate the diffusion effect of natural resources among cities in the same province; (iii) The impact of resource abundance on economic development is investigated not only at the city level but also at the prefectural level in China; (iv) We use a functional coefficient regression model to deal with city-specific heterogeneity and, at the same time, analyze the transmission mechanism of the resource curse phenomenon. Our empirical results show that there is no significant evidence to support the existence of a resource curse phenomenon in China. On the other hand, we find that the degree of natural resource abundance in a city has a positive diffusion effect on the economic growth of neighboring cities within the same province at the city level, but not at prefectural levels. We attribute this to the urban bias policy.  相似文献   
93.
Using a unique dataset of Korean listed companies for which trade initiators are correctly identifiable, we estimate bias-free PIN (probability of informed trading) that is no longer subject to the trade misspecification problem and test whether it is related to expected returns. Unlike prior studies, we find that bias-free AdjPIN, the adjusted PIN purged of a liquidity component, is positively related to implied cost of equity. Our findings suggest that the errors in PIN variables hamper a proper identification of PIN pricing in prior studies.  相似文献   
94.
Consumers can experience relatively low prices with the dramatic diffusion of online shopping even with customized products, which are commonly more expensive than regular products, due to unique functions of customized product order processes in online environments. This paper investigates how two psychological antecedents, (1) need for uniqueness and (2) status aspiration, can influence consumers' attitude with regard to forming procedures toward e-customized products and how perceived risk, another psychological factor, on purchasing e-customized products plays a role of moderating factor. A self-administered online survey of 321 Japanese consumers is conducted to examine a proposed conceptual model with Structural Equation Modeling (SEM). The analysis using results indicates that the need for uniqueness directly impacts on attitude toward e-customized products while it mediates the effect of status aspiration. A multi-group analysis to test a moderating effect of the perceived risk on purchasing e-customized products highlights the significant effects of psychological factors. The result also provides potential guidelines to e-tailors on possibility of segmenting markets as well as promoting their customized products using these psychological criteria of their target consumers.  相似文献   
95.
96.
To create new opportunities for nurses to reenter the workforce, a RN p.r.n. program must meet the needs of nurses who wish to make dual commitments to home and work. The Parent Shift program provides an innovative model of attracting and retaining nurses in a hospital workforce. Many nurses who joined the program were away from the field of nursing for many years and were drawn to the program because of the promise of flexible shifts and minimal requirements for participation. In this study, flexible shifts not only encouraged program entry, they were also a powerful motivator for continued program participation over time. Parent Shift nurse presence was perceived by nurse managers to decrease stressors and improve time efficiency of full-shift staff.  相似文献   
97.
This research tested a conceptual model for proximity of clothing to self (PCS) in relation to age identity, self‐actualization, psychological well‐being, self‐assessed health, sex and chronological age among older adults, aged 65 and over, within the human ecological perspective. A mail survey was sent to a national random sample of 1700 older adults in the US resulting in 195 usable respondents in the final sample. The respondents returned two completed questionnaires, which were (1) Clothing: A Resource for Successful Aging? (to measure PCS, age identity and demographic variables) and (2) Personal Orientation Inventory (to measure self‐actualization). The results indicated that older adults' psychological well‐being, one component of successful ageing, was directly affected by their self‐assessed health, age identity and self‐actualization. PCS indirectly influenced individuals' psychological well‐being in a slightly negative way in later life. In sum, clothing may be used as a needs satisfier for different levels of needs or related more closely with needs in addition to self‐actualization needs for older adults. Further research should be conducted to explore relationships among PCS, different levels of human needs, clothing‐related variables and psychological well‐being for this age group. In practice, the effort should be given to teach the use of clothing (or other human‐built objects) as a tool or need satisfier to contribute to success in a person's later life by offering some educational or training programmes through local senior community centres or universities.  相似文献   
98.
Murphy et al. (2009) criticize Young’s (2005) test of Austrian business cycle theory (ABCT) using US industry-level quarterly job reallocation data and the federal funds rate as a monetary policy indicator. I argue that not only are Murphy et al.’s specific criticisms misguided; more importantly, they all but completely rule out the type of empirical study that Young (2005) advocates: specifically, one that (1) is quantitative and distinguishes between statistical and economic significance and (2) attempts to exploit a hypothesis that is both a prediction of ABCT and not a prediction of competing monetary theories of the cycle. I argue that empirical studies embodying (1) and (2) are critical to ABCT as a research program. Furthermore, I review the existing econometric studies of ABCT from the last 10 years and conclude that there is much room for improvement along these lines.  相似文献   
99.
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   
100.
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   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号