全文获取类型
收费全文 | 2451篇 |
免费 | 51篇 |
专业分类
财政金融 | 377篇 |
工业经济 | 139篇 |
计划管理 | 338篇 |
经济学 | 644篇 |
综合类 | 55篇 |
运输经济 | 19篇 |
旅游经济 | 31篇 |
贸易经济 | 417篇 |
农业经济 | 165篇 |
经济概况 | 316篇 |
邮电经济 | 1篇 |
出版年
2021年 | 17篇 |
2020年 | 33篇 |
2019年 | 46篇 |
2018年 | 68篇 |
2017年 | 80篇 |
2016年 | 71篇 |
2015年 | 34篇 |
2014年 | 68篇 |
2013年 | 249篇 |
2012年 | 76篇 |
2011年 | 106篇 |
2010年 | 85篇 |
2009年 | 87篇 |
2008年 | 90篇 |
2007年 | 66篇 |
2006年 | 55篇 |
2005年 | 48篇 |
2004年 | 49篇 |
2003年 | 39篇 |
2002年 | 39篇 |
2001年 | 32篇 |
2000年 | 44篇 |
1999年 | 36篇 |
1998年 | 35篇 |
1997年 | 37篇 |
1996年 | 37篇 |
1995年 | 18篇 |
1994年 | 32篇 |
1993年 | 36篇 |
1992年 | 46篇 |
1991年 | 31篇 |
1990年 | 32篇 |
1989年 | 22篇 |
1988年 | 32篇 |
1987年 | 24篇 |
1986年 | 19篇 |
1985年 | 42篇 |
1984年 | 39篇 |
1983年 | 42篇 |
1982年 | 31篇 |
1981年 | 33篇 |
1980年 | 29篇 |
1979年 | 31篇 |
1978年 | 26篇 |
1977年 | 16篇 |
1976年 | 22篇 |
1975年 | 23篇 |
1974年 | 18篇 |
1973年 | 26篇 |
1972年 | 20篇 |
排序方式: 共有2502条查询结果,搜索用时 15 毫秒
111.
This paper reviews the existing mechanisms of innovative development in the world economy focusing on emerging technologies markets evolution on the example of nanotechnology. The question has been raised of whether nanotechnologies can provide the core of the new technological revolution, and whether these prospects exist for NBIC convergence. In this connection the development of the global market for nano-enabled products following the 2007–2009 crisis and the reliability of the related development forecasts have been assessed. Particular attention has been paid to peculiarities of nanoenabled product market structure and the impact of stagnating R&D costs in the field of nanotechnology. 相似文献
112.
Econometric models of the provincial rapeseed acreage are developed for Alberta, Saskatchewan, and Manitoba, acknowledging that acreage responses differ among the three producing provinces. The OLS and the seemingly unrelated regression methods are used for estimation. The effects of explanatory variables are substantially different in their magnitudes among the provinces, and yet the three models as a whole are consistent with an aggregate model for the prairie region. Price elasticities of the rapeseed acreage obtained from the models show that the acreage is quite elastic with respect to both its own price and wheat price. Finally, the models are employed in estimating the effects on the rapeseed acreage of the railway branchline abandonment recommended by the Hall Commission. This shows that individual provinces would have somewhat different impacts from the Recommendation. Le rapport expose des modèles économétriques de la production de colza en Alberta, en Saskatchewan et au Manitoba, tout en tenant compte que les variations dans la superficie cultivée diffèrent dans les trois provinces productrices. Pour leur estimation, les auteurs ont eu recours à la méthode des moindres carrés et à la méthode d'estimation simultanée. L'importance des effets des variables explicatives diffère sensiblement d'une province à l'autre; néanmoins, dans leur ensemble, les trois modèles cadrent avec un modèle global pour les Prairies. D'après les coefficients d'élasticité-prix obtenus à partir des modèles, la superficie cultivée de colza est à la fois élastique au prix du colza et à celui du blé. Les modèles servent enfin à estimer l'incidence sur la superficie cultivée de colza, de l'abandon d'embranchements ferroviaires recommandé par la Commission Hall. II en ressort pour chacune des provinces des implications quelque peu diffèrentes de celles de la recommendation de la dite Commission. 相似文献
113.
114.
Many American multinational enterprises (MNEs) are currently active in Russia despite the turbulence encountered in that transitional economy. Most seem to have entered as an extension of their global strategies with a long-term horizon. While some entered with considerable involvement and substantial investment, others followed a more cautious or incremental path. This article focuses on how MNE strategies have evolved after entry and describes six strategic approaches. Strategic investment flexibility is found to depend upon a company 's original entry strategy and tolerance for risk, as well as its assessment of the legal and political environment, industry conditions, market readiness for its products or services, competition, and the investment required to establish a sustainable competitive position. Keys to successful strategy development are drawn from the experiences of US MNEs which have established growing businesses in the vast Russian market. The strategies of such successful MNEs, however initiated upon entry, usually evolved to a relatively heavy investment position. 相似文献
115.
Aglaia Efstathiou Diane Grant Sheila M. Maxwell 《International Journal of Consumer Studies》2004,28(3):305-311
The nutritional habits of UK consumers have become a cause for concern with an increasing number of people suffering from diseases related to nutrition. The way in which food is prepared may contribute to the nutritional content of the diet. Traditional methods of cooking and eating are being influenced by increased ownership of domestic appliances. This study aimed to carry out a cross sectional study of people living on Merseyside to determine the ownership and use of small kitchen domestic appliances in relation to the possible consequences the appliances may have on the nutrient intake of the individual. An opportunistic sample of 276 female adults aged 25–70 years was recruited from amongst university staff and community groups within Merseyside. Data were collected using a self‐completion questionnaire consisting of questions concerning personal details, the ownership and use of domestic appliances that may influence nutrient intake. The Liverpool John Moores University Ethics Committee granted ethical approval. Microwave ovens, electric toasters and grills were owned by 80% of the population. Coffee makers, handheld electric food mixers, sandwich makers, blenders and food processors although owned by over 45% were used by the majority only once a week or less. Newer items such as a bread maker were owned by 9% who were significantly more likely to have a professional occupation. Those with unskilled occupations were significantly more likely to own a deep fat fryer and least likely to own a food processor. Those aged 25–34 years were significantly least likely to own a handheld food mixer. Households comprised of couples with or without children were significantly more likely to own sandwich makers, bread makers, food processors and handheld food mixers. No difference in the use of the appliances was found with occupational group or age. A large percentage of people own a variety of domestic appliances, the use of which may have a beneficial effect on their nutrient intake, however, it is of concern that those in the lower socio‐economic group were more likely to own appliances that will have a negative effect on their diet. 相似文献
116.
Lucy J. Beasley Allan F. Hackett Sheila M. Maxwell 《International Journal of Consumer Studies》2004,28(4):355-363
An individual's dietary habits are largely developed during childhood and adolescence, and are likely to be determined by both nature (the development of sensory perceptions) and nurture (parental influence, and later on the influence of peers). However, diet is likely to evolve throughout the life cycle as circumstances change and new influences are introduced to an individual's lifestyle. An example of this is the changes in diet that occur as a result of the transition young people make away from the family home into independent living. Leaving behind the meals provided and cooked by parents/guardians and learning how to shop on a budget and prepare and cook for themselves may result in the adoption of poor eating habits, which is likely to have a detrimental effect on health. Leaving behind the restrictions of parental control may also result in the adoption of unhealthy lifestyle practices such as smoking and excessive alcohol consumption. This study therefore seeks to investigate the effect of leaving home on a young person's diet and lifestyle. Health behaviour and food intake was assessed by questionnaire. Findings suggest that a young person's diet may change after leaving home, but these changes are not necessarily negative. More negative health behaviour was observed in young people living independently. 相似文献
117.
Household leisure expenditures for retired and near‐retired households were examined in order to better understand the dynamics associated with the move to retirement status. Data from the 1995 Consumer Expenditure Survey indicated that retirement, total expenditures, and education had positive impacts on leisure expenditures. For retired households, greater total expenditures and education increased expenditures, while age and the presence of earned income decreased expenditures. For near‐retired households, greater total expenditures, education, and the presence of asset income significantly increased leisure expenditures. 相似文献
118.
In this paper we argue that firms' financial distress shouldplay a greater role in the macroeconomic analysis of the businesscycle. We provide a non-technical account of a general equilibriummodel that exhibits financially-driven equilibrium cycles. Weshow that the empirical evidence is widely supportive of thekey hypothesis and implications of our approach. We use themodel in order to evaluate the effects of several policy measures.It turns out that deepening the market for second-hand capitalgoods, subsidizing the interest payments of companies whichstart up when financial conditions are tight, and bailing outsome companies in default can indeed 'stabilize' the economy.By way of generalization, we may say that the policy reactionto a financially driven bust should be accommodating. 相似文献
119.
120.
Both soft, noncontractible, and hard, contractible, information are informative about managerial ability and future firm performance. If a manager's future compensation depends on expectations of ability or future performance, then the manager has implicit incentives to affect the information. We examine the real incentive effects of soft information in a dynamic agency with limited commitment. When long-term contracts are renegotiated, the rewards for future performance inherent in long-term contracts allow the principal partial control over the implicit incentives. This is because the soft information affects the basis for contract renegotiation. With short-term contracts, the principal has no control over the basis for contract negotiation, and thus long-term contracts generally dominate short-term contracts. With long-term contracts, the principal's control over implicit incentives is characterized in terms of effective contracting on an implicit aggregation of the soft information that arises from predicting (forming expectations of) future performance. We provide sufficient conditions for soft information to have no real incentive effects. In general, implicit incentives not controllable by the principal include fixed effects, such as career concerns driven by labor markets external to the agency. When controllable incentives span the fixed effects of career concerns, the latter have no real effects with regard to total managerial incentives—they would optimally be the same with or without career concerns. Our analysis suggests empirical tests for estimating career concerns that should explicitly incorporate noncontractible information. 相似文献