全文获取类型
收费全文 | 270篇 |
免费 | 29篇 |
专业分类
财政金融 | 49篇 |
工业经济 | 25篇 |
计划管理 | 51篇 |
经济学 | 53篇 |
综合类 | 3篇 |
运输经济 | 1篇 |
旅游经济 | 13篇 |
贸易经济 | 68篇 |
农业经济 | 1篇 |
经济概况 | 35篇 |
出版年
2023年 | 7篇 |
2022年 | 1篇 |
2021年 | 4篇 |
2020年 | 13篇 |
2019年 | 10篇 |
2018年 | 17篇 |
2017年 | 25篇 |
2016年 | 15篇 |
2015年 | 12篇 |
2014年 | 15篇 |
2013年 | 38篇 |
2012年 | 21篇 |
2011年 | 12篇 |
2010年 | 19篇 |
2009年 | 9篇 |
2008年 | 12篇 |
2007年 | 11篇 |
2006年 | 7篇 |
2005年 | 11篇 |
2004年 | 11篇 |
2003年 | 1篇 |
2002年 | 6篇 |
2000年 | 1篇 |
1999年 | 3篇 |
1998年 | 3篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1991年 | 1篇 |
1983年 | 1篇 |
1980年 | 1篇 |
1979年 | 3篇 |
1974年 | 1篇 |
1970年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有299条查询结果,搜索用时 15 毫秒
21.
We compare the backtesting performance of ARMA-GARCH models with the most common types of infinitely divisible innovations, fit with both full maximum likelihood estimation (MLE) and quasi maximum likelihood estimation (QMLE). The innovation types considered are the Gaussian, Student’s t, α-stable, classical tempered stable (CTS), normal tempered stable (NTS) and generalized hyperbolic (GH) distributions. In calm periods of decreasing volatility, MLE and QMLE produce near identical performance in forecasting value-at-risk (VaR) and conditional value-at-risk (CVaR). In more volatile periods, QMLE can actually produce superior performance for CTS, NTS and α-stable innovations. While the t-ARMA-GARCH model has the fewest number of VaR violations, rejections by the Kupeic and Berkowitz tests suggest excessively large forecasted losses. The α-stable, CTS and NTS innovations compare favourably, with the latter two also allowing for option pricing under a single market model. 相似文献
22.
Angela Shin‐yih Chen Min‐dau Bian Yi‐ming Hom 《International Journal of Training and Development》2005,9(1):21-32
This paper aims to identify Taiwan HRD practitioners’ perceived competency levels, and to evaluate the importance of 52 workplace learning and performance (WLP) competencies. The conceptual framework is adapted from the American Society of Training and Development (ASTD) models for WLP conducted by Rothwell, Sanders and Soper (1999). The survey data were obtained from 254 practitioners, results are analysed and findings reported. Conclusions and recommendations are provided. 相似文献
23.
24.
25.
Conclusion This study found that the decision by management to establish a DISC unit may not be satisfactorily identified by the examination of the financial data on either anex ante orex post basis. However, examination of the responses to the questionnaires indicate differences in the perceptions of the management of the two groups are significantly different on a multivariate basis.A possible implication of this research effort is that the use of published financial data alone cannot adequately explain decisions made by management. Indeed, unless management's expectations are realized, use of published data alone may result in unwarranted conclusions. 相似文献
26.
27.
Yeon Ho Shin Seung Eun Jung Jinyoung Im Kimberly Severt 《Journal of Foodservice Business Research》2020,23(4):358-375
ABSTRACT The purpose of this study was to use an extended model of the theory of planned behavior to investigate the antecedents which lead to consumers’ purchase of state-branded food products. Relationships among attitude, subjective norm, perceived behavioral control, health-consciousness, intention to purchase, and actual purchase were examined. In addition, the moderating role of gender on consumer purchasing was assessed. The hypothetical model was empirically tested using data collected via Amazon Mechanical Turk (Mturk). Results implicated that consumers’ attitude, subjective norm, and perceived behavioral control of purchasing state-branded products significantly predicted their intention to purchase, and consumers’ intention to purchase significantly predicted their actual purchase of state-branded products. The relationship between health-consciousness and intention to purchase, however, was not found. Gender differences were found only between consumers’ perceived behavioral control of state-branded purchasing and their intention to purchase. Implications for marketers, farmers, and restaurant owners are provided. 相似文献
28.
In this research, we examine the role of two motivational forces associated with creation of electronic word-of-mouth (eWOM): regulatory focus and collective dissonance. Our studies show that generation of eWOM is enhanced by regulatory fit, while traditional WOM is dominated by the negativity effect. In study 1A, we show that prevention-focused consumers produce stronger intentions to post eWOM when they undergo a negative compared to a positive service experience. In study 1B, we find that promotion-focused consumers are more likely to post eWOM in reaction to a positive service experience when one's self-construal is independent. The final study shows that due to collective dissonance, consumers have greater intentions to create eWOM when their experiences are inconsistent with others' postings. We discuss the implications of these results for the development and management of eWOM communication in virtual communities. 相似文献
29.
Using an agency model, we show how delegation, by generating additional private information, improves dynamic incentives under limited commitment. It circumvents ratchet effects and facilitates the revelation of persistent private information through two effects: a play‐hardball effect, which mitigates an efficient agent's ratchet incentive, and a carrot effect which reduces an inefficient agent's take‐the‐money‐and‐run incentive. Although delegation entails a loss of control, it is optimal when uncertainty about operational efficiency is large. Moreover, delegation is more effective with production complementarity. We also consider different modes of commitment to yield insights into optimal organizational boundaries. 相似文献
30.
Risks faced by traders from price movements are sometimes magnifiedby the actions of other traders. Risk-management systems whichneglect this feature may give a seriously misleading pictureof the true risks. The hazards arising from this potential blindspotare at their most dangerous when the prevailing conventionalwisdom lulls traders into a false sense of security on the attractivenessof a trading position. The efforts of one trader to reversehis trade makes more acute the need to follow suit on the partof others. For markets dominated by traders with short timehorizons, such interdependence leads to exaggerated price movements.Estimates of 'value at risk' which recognize such interdependenceof actions can diverge substantially from those given by conventionaltechniques. 相似文献