全文获取类型
收费全文 | 525篇 |
免费 | 31篇 |
专业分类
财政金融 | 72篇 |
工业经济 | 56篇 |
计划管理 | 87篇 |
经济学 | 107篇 |
运输经济 | 2篇 |
贸易经济 | 148篇 |
农业经济 | 33篇 |
经济概况 | 35篇 |
邮电经济 | 16篇 |
出版年
2024年 | 1篇 |
2023年 | 4篇 |
2022年 | 3篇 |
2021年 | 9篇 |
2020年 | 8篇 |
2019年 | 21篇 |
2018年 | 20篇 |
2017年 | 29篇 |
2016年 | 30篇 |
2015年 | 19篇 |
2014年 | 36篇 |
2013年 | 56篇 |
2012年 | 40篇 |
2011年 | 44篇 |
2010年 | 36篇 |
2009年 | 45篇 |
2008年 | 19篇 |
2007年 | 24篇 |
2006年 | 14篇 |
2005年 | 10篇 |
2004年 | 14篇 |
2003年 | 12篇 |
2002年 | 7篇 |
2001年 | 6篇 |
2000年 | 5篇 |
1999年 | 7篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1994年 | 6篇 |
1993年 | 3篇 |
1992年 | 4篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1988年 | 1篇 |
1985年 | 1篇 |
1984年 | 3篇 |
1982年 | 1篇 |
1973年 | 1篇 |
1966年 | 2篇 |
1935年 | 1篇 |
排序方式: 共有556条查询结果,搜索用时 15 毫秒
161.
Setting the stage for successful electronic reverse auctions 总被引:1,自引:1,他引:1
Based on case survey data, this article provides a framework to help organizations evaluate if electronic reverse auctions (ERAs) are likely to be successful in terms of product cost reductions. The results of logistic regression and correlation analysis underline that it is vital that the product or service to be auctioned can be properly specified and that the companies must spend sufficient time and effort to carefully analyze, understand and, if possible, increase competition among suppliers participating in an ERA. Further recommendations how to instill competition are provided. Organizations should be aware of these conditions and focus purchasing measures prior to an auction accordingly. 相似文献
162.
Stephan Alberth Author Vitae 《Technological Forecasting and Social Change》2008,75(7):952-983
To further understand the effectiveness of experience curves to forecast technology costs, a statistical analysis using historical data is carried out. Three hypotheses are tested using available datasets that together shed light on the historical ability of experience curves to forecast technology costs. The results indicate that the Single Factor Experience Curve is a useful forecasting model when errors are viewed in their log format. Practitioners should note that due to the convexity of the log curve a mean overestimation of potential cost reductions can arise as values are converted into monetary units. Time is also tested as an explanatory variable, however forecasts made with endogenous learning based on cumulative capacity as used in traditional experience curves are shown to be vastly superior. Furthermore the effectiveness of increasing weights for more recent data is tested using Weighted Least Squares with exponentially increasing weights. This results in forecasts that are less biased, though have increased spread when compared to Ordinary Least Squares. 相似文献
163.
Capabilities for managing a portfolio of supplier relationships 总被引:1,自引:0,他引:1
164.
How Do Price Perceptions of Different Brand Types Affect Shopping Value and Store Loyalty?
下载免费PDF全文
![点击此处可从《心理学和销售学》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Mbaye Fall Diallo Patricia Coutelle‐Brillet Arnaud Rivière Stephan Zielke 《心理学和销售学》2015,32(12):1133-1147
This research investigates the relationships among price perceptions for different brand types (national brands, standard store brands, regional store brands, organic store brands), shopping value dimensions (quality, price, social, and emotion value), and store loyalty (retention and word of mouth (WOM)). A comprehensive model depicts determinants of customer store loyalty. Using structural equation modeling, the model test includes 671 consumers intercepted during shopping trips. The data analysis yields several surprising results. In particular, low product price perceptions do not necessarily signal negative store quality evaluations. Shopping value dimensions influence store retention loyalty and WOM behavior differently. Furthermore, different brand types exert distinct effects on the value creation process. Favorable prices for national and standard store brands have comparable positive effects on store price value and emotional value creation; appealing prices of regional store brands instead reduce the emotional value of the store, and low prices for organic store brand products significantly increase social value creation. 相似文献
165.
166.
Stephan B. Bruns 《Oxford bulletin of economics and statistics》2017,79(5):637-653
Meta‐regression models were originally developed for the synthesis of experimental research where randomization ensures unbiased and consistent estimation of the effect of interest. Most economics research is, however, observational and specification searches may often result in estimates that are biased and inconsistent, for example, due to omitted‐variable biases. We show that if the authors of primary studies search for statistically significant estimates in observational research, meta‐regression models tend to make false‐positive findings of genuine empirical effects. More research is needed to better understand how meta‐regression models need to be specified to help identifying genuine empirical effects in observational research. 相似文献
167.
The left tail of the implied volatility skew, coming from quotes on out‐of‐the‐money put options, can be thought to reflect the market's assessment of the risk of a huge drop in stock prices. We analyze how this market information can be integrated into the theoretical framework of convex monetary measures of risk. In particular, we make use of indifference pricing by dynamic convex risk measures, which are given as solutions of backward stochastic differential equations, to establish a link between these two approaches to risk measurement. We derive a characterization of the implied volatility in terms of the solution of a nonlinear partial differential equation and provide a small time‐to‐maturity expansion and numerical solutions. This procedure allows to choose convex risk measures in a conveniently parameterized class, distorted entropic dynamic risk measures, which we introduce here, such that the asymptotic volatility skew under indifference pricing can be matched with the market skew. We demonstrate this in a calibration exercise to market implied volatility data. 相似文献
168.
169.
170.
Stephan Schulmeister 《Wirtschaftsdienst》2015,95(7):442-443