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   12811篇
  免费   292篇
  国内免费   1篇
财政金融   2343篇
工业经济   1094篇
计划管理   2137篇
经济学   2820篇
综合类   182篇
运输经济   93篇
旅游经济   187篇
贸易经济   2172篇
农业经济   657篇
经济概况   1412篇
信息产业经济   1篇
邮电经济   6篇
  2021年   72篇
  2020年   135篇
  2019年   177篇
  2018年   209篇
  2017年   229篇
  2016年   223篇
  2015年   157篇
  2014年   243篇
  2013年   1222篇
  2012年   359篇
  2011年   408篇
  2010年   345篇
  2009年   406篇
  2008年   325篇
  2007年   379篇
  2006年   314篇
  2005年   243篇
  2004年   262篇
  2003年   243篇
  2002年   280篇
  2001年   240篇
  2000年   268篇
  1999年   223篇
  1998年   237篇
  1997年   234篇
  1996年   228篇
  1995年   201篇
  1994年   210篇
  1993年   205篇
  1992年   255篇
  1991年   231篇
  1990年   190篇
  1989年   160篇
  1988年   156篇
  1987年   195篇
  1986年   190篇
  1985年   262篇
  1984年   283篇
  1983年   262篇
  1982年   232篇
  1981年   230篇
  1980年   223篇
  1979年   234篇
  1978年   147篇
  1977年   139篇
  1976年   101篇
  1975年   131篇
  1974年   94篇
  1973年   93篇
  1971年   77篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
This paper explores the issue of sustainability at the macro scale employing multi-criteria decision aid (MCDA) methods. The incommensurability of values and the essentially multi-dimensional and dynamic nature of sustainability challenge the use of composite measurement indices. This determined the choice of MCDA methods. Austria was chosen as a case study, due to the wide availability of data, especially on indicators of strong sustainability. The structure of the multi-criteria problem comprised the evolution of different sustainability dimensions over time. The process for selecting criteria included a critical assessment of institutional sustainability agendas (UN, EU and Austrian Government) and theoretical recommendations.After an assessment of MCDA methods, the NAIADE method demonstrated the most suitable properties for sustainability assessment. The application of this outranking approach was undertaken in three separate settings: long-term from 1960 to 2003, medium-term, 1970-1995, and short-term, 1995-2003 with varying numbers of criteria. The response of results to the addition of evaluating criteria and periods was tested. The degree of credibility for accepting preference relations was also employed for sensitivity analysis.According to the results of long-term and medium-term assessments, especially in the weak sustainability setting, sustainable progress is taking place in Austria. In the short term, in the stronger sustainability setting and, especially as the number of criteria increases, more incomparable periods appear and trends are less determined. Moreover, it is shown how results crucially depend on the methodological choices.This is one of the first applications of the multi-criteria tools to the dynamic analysis of sustainability at the macro scale.  相似文献   
102.
103.
104.
Contrary to the popular belief, specialization is not necessary for gravity equations. This paper shows that the simple gravity equation holds if and only if the market share of an exporting country is constant across all importing countries. Specialization is just one special case satisfying this condition. The constant‐share condition can hold in a variety of situations where multiple producers compete with a homogeneous good. Further, this paper shows that the ratio of bilateral trade to the product of partner incomes is increasing in the extent of specialization and in the intensity of intra‐industry trade. Since the relationship is not model‐specific, the correlations among these variables do not support any specific model.  相似文献   
105.
There is a wide literature on the dynamic adjustment of employment and its relationship with the business cycle. In this paper we present a statistical model that offers a congruent representation of part of the UK labour market since the mid 1960s. We use a cointegrated vector autoregressive Markov-switching model in which some parameters change according to the phase of the business cycle. Output, employment, labour supply and real earnings are found to have a common cyclical component. The long run dynamics are characterized by one cointegrating vector relating unemployment to trend-adjusted real wages and output. Despite there having been many changes affecting this sector of the UK economy, the Markov-switching vector-equilibrium-correction model with three regimes (representing recession, normal growth, and high growth) provides a good characterization of the sample data, and performs well relative to alternative linear and non-linear models. The results of an impulse-response analysis highlight the dangers of using VARs when the constancy of the estimated coefficients has not been established, and demonstrate the advantages of generating regime dependent responses. First Version Received: December 2000/Final Version Received: August 2001  相似文献   
106.
Abstract.  We develop a model with one innovating northern firm and heterogeneous southern firms that compete in a final product market. We assume southern firms differ in their ability to adapt technology and study southern incentives to protect intellectual property rights. We find that, in a non-cooperative equilibrium, governments resist IPR protection, but collectively southern countries benefit from some protection. We show that, in general, countries with more efficient firms prefer higher collective IPR protection than those with less efficient firms. Given the aggregate level of IPR protection, it is more efficient if the more efficient countries have weaker IPR protection.  相似文献   
107.
Government permission is required to dismiss or lay off even a single worker in India and Zimbabwe. Dynamic labor demand equations, derived from a CES cost minimization model, are estimated for 64 manufacturing industries in these two countries. The data reveal a substantial reduction in demand for workers but no slowing in adjustment of number of employees following enactment of the labor laws. In India, no comparable reduction in labor demand occurred in small scale plants uncovered by the job security regulations. Among larger Indian plants, the drop in labor demand is estimated to be largest in industries where: coverage of the legislation is more extensive, private ownership dominates, and there are fewer union members.  相似文献   
108.
109.
Transaction utility effects when quality is uncertain   总被引:1,自引:0,他引:1  
The existing literature finds that price discrepancy, which represents the difference between expected and observed price, helps explain brand choice and purchase intention. This effect is often attributed to transaction utility, that is, the incremental utility associated with the surprise of observing a price lower or higher than expected. This research considers the possibility, however, that transaction utility is a less important determinant of choice when quality is uncertain. We propose and find that acquisition utility (perceived value for the money) tends to dominate the explanation of purchase intention, but transaction utility is significant only when consumers are more certain about quality. Our discussion considers the relative role of transaction utility in explaining consumer decision making and how the informative and allocative roles of price might be distinguished. He received his Ph.D. in marketing from Ohio State University and his B.S. from Ohio State University. His research interests include information economics and pricing. Previously, he taught at the University of South Carolina. He has published in theJournal of Consumer Research, Journal of Marketing, andJournal of Retailing, among others. He received his Ph.D. at the University of South Carolina, his M.B.A. from the University of Georgia, and a B.S. degree from Clemson University. Previously, he taught at the University of Alabama. His research interests include consumer perceptions of value and interpersonal influences. He has published in theJournal of Consumer Research and theJournal of Marketing Research, among others. He received his Ph.D. in marketing from the University of South Carolina and has a Bachelor’s degree in economics from the University of Delhi. His research interests include price bundling, price effects on perceived quality perceptions, and segmentation of business-to-business markets. He has published in theJournal of Business Research and theAdvances in Consumer Research series, published by the Association of Consumer Research. He previously taught on the faculty of Valdosta State University. She received a B.S. in statistics, a Ph.D. in marketing from the University of South Carolina, and a M.S. in statistics from Virginia Polytechnic Institute. She previously taught at Lehigh University. Her research interests include market segmentation, discrete data analysis, and pricing. She has published in theJournal of Marketing Research, as well as in theProceedings of the American Marketing Association and theAssociation for Consumer Research.  相似文献   
110.
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