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   4082篇
  免费   50篇
财政金融   647篇
工业经济   206篇
计划管理   746篇
经济学   1057篇
综合类   50篇
运输经济   16篇
旅游经济   14篇
贸易经济   1043篇
农业经济   43篇
经济概况   257篇
信息产业经济   4篇
邮电经济   49篇
  2023年   34篇
  2022年   14篇
  2021年   130篇
  2020年   46篇
  2019年   56篇
  2018年   226篇
  2017年   208篇
  2016年   202篇
  2015年   50篇
  2014年   54篇
  2013年   150篇
  2012年   364篇
  2011年   265篇
  2010年   61篇
  2009年   86篇
  2008年   105篇
  2007年   77篇
  2006年   120篇
  2005年   965篇
  2004年   481篇
  2003年   173篇
  2002年   33篇
  2001年   23篇
  2000年   28篇
  1999年   8篇
  1998年   12篇
  1997年   7篇
  1996年   9篇
  1995年   10篇
  1994年   6篇
  1993年   11篇
  1992年   8篇
  1991年   10篇
  1990年   7篇
  1989年   7篇
  1988年   6篇
  1987年   8篇
  1986年   4篇
  1985年   4篇
  1983年   6篇
  1982年   3篇
  1981年   3篇
  1979年   3篇
  1978年   10篇
  1977年   4篇
  1972年   5篇
  1971年   5篇
  1970年   4篇
  1963年   3篇
  1961年   2篇
排序方式: 共有4132条查询结果,搜索用时 0 毫秒
11.
12.
13.
This study develops a scale, using the American Marketing Association’s code of ethics, to measure the marketing-related norms of marketing practitioners. The scale has five dimensions: 1) price and distribution, 2) information and contracts, 3) product and promotion, 4) obligation and disclosure, and 5) general honesty and integrity. The relative influence of personal moral philosophies and organizational ethical climate on the norms of marketers was also examined in this study. He received his Ph.D. in marketing from Texas Tech University. His work has previously appeared in theJournal of Macromarketing, Journal of Business Ethics, Research in Marketing, Business and Professional Ethics Journal, andJournal of the Academy of Marketing Science, as well as various other journals and proceedings. His research has been accepted for publication in theJournal of Pharmaceutical Marketing and Management and theJournal of Business Ethics, and has been published in various national and regional proceedings. His research interests include marketing ethics, health care marketing, international marketing, and direct marketing. He received his Ph.D. in marketing from the University of Mississippi. His work has previously appeared in theJournal of Macromarketing, Journal of Business Ethics, Business and Professional Ethics Journal, Journal of Public Policy and Marketing, andJournal of the Academy of Marketing Science, as well as other journals and proceedings.  相似文献   
14.
This paper investigates how a development moratorium affects choices of development timing and land values in a framework where both the value of developed property evolves stochastically and the development costs are fully irreversible. We assume that a regulator initially announces that land is not allowed to be developed during a finite period of time in the future. A developer, thus, must decide whether to develop land before the timing ordinance is imposed, or after it expires. The development moratorium reduces the developer’s option value from waiting and, thus, accelerates development. We also use simulation analysis to demonstrate how the other factors that relate to the demand and supply conditions of the real estate market affect this accelerating effect.  相似文献   
15.
16.
This article deals with the problem of item nonresponse in contingent valuation surveys using a payment-card method, by applying a grouped-data sample-selection estimation technique that is capable of imputing the missing values conditional upon a respondent's decision to answer a willingness-to-pay question. The advantage of the technique lies in its ability to utilize all of the information in the sample, permitting a more efficient estimation in the presence of item nonresponse bias. The major determinants of willingness to pay appear to be household income, number of children, education, perception of existing water quality, and identification with environmental issues.  相似文献   
17.

The fluctuations in the rate of returns of the Bombay stock exchange are analyzed through wavelet transform. The fluctuations, in various time scales, naturally separated by the wavelets, are subjected to statistical analysis. The localization and multiresolution properties of the wavelets enable one to identify collective behaviour in the stock market and the extent of their influence at various time scales. The Gaussian nature of the rate of returns at certain scales and the periodic nature of the same, at other scales, are clearly brought out by this analysis. The utility of this approach for modeling purpose is also elucidated.

  相似文献   
18.
The different faces of coupon elasticity   总被引:2,自引:0,他引:2  
Coupons account for over two-thirds of all consumer promotional efforts initiated by the manufacturers of consumer goods. In this study, the impact of coupons on brand sales is investigated and how that impact decays over the life of the coupon is demonstrated. Specifically, we present an econometric model that can capture coupon effects in terms of equivalent price reduction, account for coupon effects over time, allow inference of coupon effects when retailers decide to double or triple the coupon value, and provide both self-coupon and cross-coupon elasticities at different levels of aggregation. A widely used sales response model is adapted, and an analytical model is proposed to estimate both the self-coupon and cross-coupon (face value) elasticities of sales at the store level. From the store-level elasticity estimates for a given week, the authors analytically derive the coupon elasticities for the chain level by aggregating across stores, and over the life of the coupon by aggregating over time. The proposed sales response model is estimated with the data obtained from three markets for various product categories, and the coupon elasticities are computed. The proposed framework allows one to demonstrate the hypothetical equivalence of a shelf-price reduction for a given coupon face value in each week. Also, the effect of doubling the face value of a coupon results in more than a proportionate increase in elasticity. The authors find that both self and cross-coupon elasticities are much smaller in magnitude than the average self and cross-price elasticity measures reported in the literature.  相似文献   
19.
Planning food services for a campus setting   总被引:1,自引:0,他引:1  
Providing appropriate food services in a campus setting is increasingly important due to more demanding customers and because clients have less time to go off-campus when they need to eat. Using a university campus as an example, this research looks at customer satisfaction with existing food services and explores various methods for determining where to locate new facilities. This campus currently has great needs for additional food services, and it is shown clearly where additional food services are required. Also, the methods used are compared in terms of their effectiveness in finding the solution.  相似文献   
20.
Summary The exact mean square error for the ratio estimator of a finite population total based on simple random sampling without replacement is shown to have an expected value less than that of the variance of the ratio estimator based on Midzuno’s scheme, under a usual super-population model.  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