全文获取类型
收费全文 | 156篇 |
免费 | 5篇 |
专业分类
财政金融 | 27篇 |
工业经济 | 11篇 |
计划管理 | 19篇 |
经济学 | 27篇 |
综合类 | 2篇 |
运输经济 | 4篇 |
旅游经济 | 11篇 |
贸易经济 | 36篇 |
农业经济 | 19篇 |
经济概况 | 5篇 |
出版年
2023年 | 1篇 |
2020年 | 3篇 |
2019年 | 2篇 |
2018年 | 3篇 |
2017年 | 4篇 |
2016年 | 4篇 |
2015年 | 3篇 |
2014年 | 6篇 |
2013年 | 22篇 |
2012年 | 7篇 |
2011年 | 12篇 |
2010年 | 3篇 |
2009年 | 6篇 |
2008年 | 4篇 |
2007年 | 3篇 |
2006年 | 5篇 |
2005年 | 1篇 |
2004年 | 3篇 |
2003年 | 4篇 |
2002年 | 2篇 |
2001年 | 3篇 |
2000年 | 3篇 |
1999年 | 7篇 |
1998年 | 5篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 5篇 |
1994年 | 4篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 5篇 |
1990年 | 5篇 |
1988年 | 2篇 |
1987年 | 3篇 |
1985年 | 1篇 |
1983年 | 3篇 |
1981年 | 3篇 |
1980年 | 6篇 |
1976年 | 1篇 |
1964年 | 1篇 |
1957年 | 1篇 |
排序方式: 共有161条查询结果,搜索用时 15 毫秒
1.
We treat the parameter estimation problem for mean‐field models of large interacting financial systems such as the banking system and a pool of assets held by an institution or backing a security. We develop an asymptotic inference approach that addresses the scale and complexity of such systems. Harnessing the weak convergence results developed for mean‐field financial systems in the literature, we construct an approximate likelihood for large systems. The approximate likelihood has a conditionally Gaussian structure, enabling us to design an efficient numerical method for its evaluation. We provide a representation of the corresponding approximate estimator in terms of a weighted least‐squares estimator, and use it to analyze the large‐system and large‐sample behavior of the estimator. Numerical results for a mean‐field model of systemic financial risk highlight the efficiency and accuracy of our estimator. 相似文献
2.
Boris A. Portnov Kay W. Axhausen Martin Tschopp Moshe Schwartz 《Journal of Transport Geography》2011,19(6):1368-1378
This paper analyzes how location has affected, in the second half of the twentieth century, the population growth of 2889 municipalities in Switzerland. The analysis demonstrates the temporal relativity of location attributes, even for small territorial divisions, such as the Swiss cantons. However, we also show that, both absolute and relative location attributes have weakened over time as population growth predictors, apparently due to improving road infrastructures, and growing motorization. The study has been made possible by a detailed historical population and accessibility database available for Swiss municipalities. To the best of our knowledge, no database of such scope and quality is available for any other European country. 相似文献
3.
Kay H. Chu Melissa A. Baker Suzanne K. Murrmann 《International Journal of Hospitality Management》2012
A growing body of literature has confirmed the deleterious effects of emotional labor on service employees. The study adds to it by investigating two hypothesized antecedents to emotional labor; affectivity and empathy which is conceptualized as a two-dimensional construct composed of emotional contagion and empathic concern. It also examines the impact of emotional labor on job satisfaction and exhaustion. The results confirmed a two-dimensional structure of emotional labor, emotive dissonance, and emotive effort. Hospitality employees with higher positive affect tend to experience less emotive dissonance while individuals with higher negative affect exert more effort to enact emotional labor. A positive relationship was found between emotional contagion and emotive dissonance, and emotive effort and job satisfaction. The results also suggested a negative relationship between emotive effort and emotional exhaustion. An unexpected negative relationship was found between emotional dissonance and emotional exhaustion. Managerial implications discuss training and acting techniques to more effectively manage employee emotional labor. 相似文献
4.
5.
Objective: This study was to determine if calcium fortification yields a higher price per serving in grocery store products. Researchers compared store brand to national brand grocery products in relation to cost in order to examine if calcium values were similar between store brand and national brand products. Methods: A total of 112 store brand and 211 national brand grocery products were collected from three low (national chain store), middle and high priced (Virginia and North Carolina regional store) grocery venues. Products were compared using price and calcium percentage per serving. ANOVA was used to determine between store brand and national brand for price per serving and calcium content, and between grocery venues. Results: National brand fortified products had a significantly lower mean price per serving when compared to national brand non-fortified products (p = 0.0002). There was no statistical difference between store brand fortified and non-fortified products (p = 0.9256). Low priced store brand products had the lowest mean price per serving ($0.34 ±0.24). Conclusions: This study found store brand products have similar calcium content as national brand products. Product cost was lower at low priced store compared to middle and high priced stores. 相似文献
6.
7.
Sweetness and Power – Public Policies and the ‘Biofuels Frenzy’ In the last decade, there has been a huge policy‐led expansion in biofuels production and consumption. This paper presents some of the findings of a funded research project which has sought to identify the drivers of biofuels policies over this period. It focuses on the EU, US and Brazil which, together, represent about 90 per cent of global biofuels markets. Biofuels policies have three key drivers: as a partial substitute for fossil fuels, to lower greenhouse gas emissions; as a way of improving energy security, by diversifying away from fossil fuels and from the limited number of countries with fossil‐fuel reserves; and as a means of promoting rural development, given the opportunities offered by the production of biofuel feedstocks and their processing into biofuels. One particular challenge for both the EU and US has been to create and sustain a broad coalition of stakeholder interests in support of biofuels and biofuel policies. Both have sought to promote ‘conventional’ biofuels now, whilst trying to aid the development of ‘advanced’ biofuels industries that will address problems with existing technologies. The continued failure to deliver significant quantities of advanced biofuels raises questions for biofuels policymakers going forward, not least dealing with the downsides of conventional biofuels that, so far, have not been mitigated by a successful transition to advanced biofuels. 相似文献
8.
J A Kay 《Business Strategy Review》1990,1(1):2-24
When are markets truly global? Will Europe be a single market after 1992, and how will we know? When are niche strategies sustainable? In this article, John Kay develops answers to these questions by developing the concept of the strategic market–the minimum area, product or geographical, within which it is possible to compete. He identifies the common strategic error involved in confusing the dimensions of the market with those of the industry, and warns that economic integration is not at all the same as the creation of a single market. 相似文献
9.
10.
We model aggregate credit losses on large portfolios of financial positions contracted with firms subject to both cyclical default correlation and direct default contagion processes. Cyclical correlation is due to the dependence of firms on common economic factors. Contagion is associated with the local interaction of firms with their business partners. We provide an explicit normal approximation of the distribution of portfolio losses. We quantify the relation between the variability of global economic fundamentals, strength of local firm interaction, and the fluctuation of losses. We find that cyclical oscillations in fundamentals dominate average losses, while local interaction causes additional fluctuations of losses around their average. The strength of the contagion-induced loss variability depends on the complexity of the business partner network. 相似文献