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   252篇
  免费   12篇
财政金融   26篇
工业经济   22篇
计划管理   38篇
经济学   83篇
运输经济   7篇
旅游经济   18篇
贸易经济   43篇
农业经济   14篇
经济概况   13篇
  2023年   2篇
  2021年   1篇
  2020年   7篇
  2019年   13篇
  2018年   11篇
  2017年   13篇
  2016年   11篇
  2015年   8篇
  2014年   14篇
  2013年   40篇
  2012年   9篇
  2011年   8篇
  2010年   8篇
  2009年   16篇
  2008年   10篇
  2007年   9篇
  2006年   15篇
  2005年   10篇
  2004年   9篇
  2003年   8篇
  2002年   3篇
  2001年   5篇
  2000年   8篇
  1999年   3篇
  1998年   3篇
  1997年   5篇
  1996年   3篇
  1995年   3篇
  1994年   2篇
  1992年   1篇
  1985年   1篇
  1984年   2篇
  1982年   1篇
  1981年   1篇
  1977年   1篇
排序方式: 共有264条查询结果,搜索用时 15 毫秒
41.
Genetically modified rice with a high folate content, i.e., folate biofortified rice, was recently developed to tackle folate deficiency. A consumer segmentation study is conducted to explore its market potential in the Chinese Shanxi Province, where the burden of folate deficiency is among the world’s highest. Cluster analysis of 451 rice consumers identified three segments: enthusiasts (14.2%), cautious (41.2%), and opponents (44.6%). Enthusiasts obtain the highest score of GM food knowledge and attitudes and have the highest GM rice acceptance rate, followed by cautious and reluctant consumers. Regarding GM food information, enthusiasts use almost entirely audiovisual channels and rely more on the industry, while other segments depend more on informal channels and anti-GM sources. Trust levels in these channels/sources differ between enthusiasts (high), opponents (neutral), and cautious (low). Based on multinomial regression, a targeted communication approach is recommended with a focus on female, cautious consumers and rural, low-educated opponents.  相似文献   
42.
This paper examines the reasons for different levels of environmental engagement among small firms in tourism. Drawing on theories of motivation, notably Social Cognitive Theory, Motivation Systems Theory and Goal Orientation Theory, as well as the literature on environmental sensitivity, it proposes a novel conceptual framework that is subsequently used to inform an empirical study. The findings of the research suggest that varying levels of environmental engagement may be explained by differences in worldviews, self‐efficacy beliefs, context beliefs and goal orientation. The paper concludes by considering the policy implications of the results. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
43.
Does production risk suppress the demand for credit? We implemented a randomized field experiment to ask whether provision of insurance against a major source of production risk induces farmers to take out loans to adopt a new crop technology. The study sample was composed of roughly 800 maize and groundnut farmers in Malawi, where by far the dominant source of production risk is the level of rainfall. We randomly selected half of the farmers to be offered credit to purchase high-yielding hybrid maize and groundnut seeds for planting in the November 2006 crop season. The other half of farmers were offered a similar credit package, but were also required to purchase (at actuarially fair rates) a weather insurance policy that partially or fully forgave the loan in the event of poor rainfall. Surprisingly, take-up was lower by 13 percentage points among farmers offered insurance with the loan. Take-up was 33.0% for farmers who were offered the uninsured loan. There is suggestive evidence that reduced take-up of the insured loan was due to farmers already having implicit insurance from the limited liability clause in the loan contract: insured loan take-up was positively correlated with farmer education, income, and wealth, which may proxy for the individual's default costs. By contrast, take-up of the uninsured loan was uncorrelated with these farmer characteristics.  相似文献   
44.
Competition in the Changing World of Banking   总被引:5,自引:0,他引:5  
This paper reviews the role of competition in banking againstthe background of a transforming sector. It uses industrialorganization and modern financial intermediation analysis tostudy the relationships between the level of competition, risk-takingincentives, and the regulatory frame. The consequences for marketstructure of the liberalization process and the need for competitionpolicy in the sector are high-lighted.  相似文献   
45.
This paper studies the patterns of growth in an endogenous-growth model where the labor supply is endogenous and sustained growth arises because the services derived from public capital increase the economic productivity. It is assumed that these services are congested by the number of households in the economy but they are not congested by the units of time that each household devotes to work. With this assumption, the dynamic equilibrium exhibits multiple balanced-growth paths, local and global indeterminacy, and limit cycles under some plausible fiscal policies. Our analysis points out that a large lump-sum tax is a necessary condition to obtain this complex equilibrium dynamic behavior.  相似文献   
46.
Measuring Aggregate Human Capital   总被引:2,自引:0,他引:2  
Weconstruct a set of human capital indexes for the states of theUnited States for each census year starting in 1940. To do so,we propose a new methodology for the construction of index numbersin panel data sets. Our method is based on an optimal approachby which we choose the ``best' set of index numbers by minimizingthe expected estimation error subject to some research constraints.Some of the empirical findings are that the stock of human capitalin the United States grew twice as rapidly as the average yearsof schooling and that human capital inequality across stateswent up during the 1980s (while the dispersion of schooling actuallyfell). We conclude that using the average years of schoolingfor the empirical study of existing growth models may be misleading.  相似文献   
47.
ABSTRACT

This article explores to what extent the internal attributes of a clustered firm influence its capacity to adopt disruptive innovations. A multidimensional approach to the absorptive capacity (ACAP) model is used to distinguish between potential (acquisition and assimilation domains) and realized (transformation and exploitation domains) internal firm capabilities. Our evidence comes from an empirical analysis of the population of firms belonging to the Spanish ceramic tile cluster which have adopted a disruptive innovation – the so-called digital printing technology – on a massive scale. The econometric estimations suggest the relevance of the Exploitation dimension of ACAP for early adoption of a new technology. In contrast, the other dimensions do not seem to play a decisive role when it comes to adopting one novelty earlier than others. In conclusion, and contrary to what was expected for non-clustered firms, the results revealed an uneven effect of the potential and realized domains of ACAP of clustered firms regarding the rate of adoption of distant technologies.  相似文献   
48.
49.
Inequality of post-tax income among pre-tax equals is evaluated andaggregated to form a global index of horizontal inequity in the income tax.The vertical action of the tax is captured by its inequality effect on averagebetween groups of pre-tax equals. Putting the two together, horizontalinequity measures loss of vertical performance. The identification problem,which has previously been thought insuperable, is addressed by a procedurevalidating the banding of income units into close equals groups. Thehorizontal and vertical effects of a major Spanish income tax reform areevaluated. Lines for future investigation are suggested.  相似文献   
50.
This paper analyses the effects of money shocks on macroeconomic aggregates in a tractable flexible-price, incomplete-markets environment that generates persistent wealth inequalities amongst agents. In this framework, current inflation redistribute wealth from the cash-rich employed to the cash-poor unemployed and induce the former to increase their labour supply in order to maintain their desired levels of consumption and precautionary savings. If the shocks are persistent, however, they also raise inflation expectations and thus deter the employed from saving and supplying labour. We relate the strength of these two inflation taxes to the underlying parameters of the model and study how they compete in determining the overall sign and slope of the implied ‘output–inflation tradeoff’ relation.  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