全文获取类型
收费全文 | 262篇 |
免费 | 12篇 |
专业分类
财政金融 | 32篇 |
工业经济 | 20篇 |
计划管理 | 47篇 |
经济学 | 72篇 |
综合类 | 14篇 |
运输经济 | 3篇 |
旅游经济 | 6篇 |
贸易经济 | 24篇 |
农业经济 | 14篇 |
经济概况 | 42篇 |
出版年
2024年 | 1篇 |
2023年 | 1篇 |
2022年 | 3篇 |
2021年 | 4篇 |
2020年 | 4篇 |
2019年 | 11篇 |
2018年 | 11篇 |
2017年 | 8篇 |
2016年 | 10篇 |
2015年 | 9篇 |
2014年 | 10篇 |
2013年 | 30篇 |
2012年 | 17篇 |
2011年 | 21篇 |
2010年 | 18篇 |
2009年 | 12篇 |
2008年 | 12篇 |
2007年 | 20篇 |
2006年 | 18篇 |
2005年 | 13篇 |
2004年 | 6篇 |
2003年 | 8篇 |
2002年 | 7篇 |
2001年 | 3篇 |
2000年 | 3篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1993年 | 2篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1927年 | 1篇 |
排序方式: 共有274条查询结果,搜索用时 31 毫秒
1.
将网络容量定义为最大流的流量。针对网络容量的三种扩张方式:点扩张、弧扩张、点扩张和弧扩张相结合,分别建立数学模型,提供算法;在分开讨论的基础上,还提出了统一的容量扩张模型;最后提供了一个具体算例。 相似文献
2.
3.
A model of farmer decision making is developed to determine the extent to which uncertainties about soil fertility and weather affect the value of site-specific technologies (SSTs) using jointly estimated risk and technology parameters. Uncertainty can lead risk-averse farmers to apply more fertilizers and generate more pollution than in the certainty case. Ignoring uncertainty and risk aversion would overestimate the economic and environmental benefits of SSTs and underestimate the subsidy required to induce adoption. Accounting for uncertainties and risk preferences might explain the low observed adoption rates of SSTs. Improving the accuracy of SSTs would increase the incentives for adoption. 相似文献
4.
5.
网络技术的发展将会对会计信息的生产模式带来新的思考,传统会计的个体性生产模式,难以适应网络技术的发展和社会化的会计信息需求。本文从会计信息失真的现有观点谈起,论述了网络环境下会计信息失真的根源,进而重新构建了网络环境下会计信息的生产模式,这对于治理会计信息失真、提高经济效益、完善宏观调控,都具有重要的意义。 相似文献
6.
We distinguish learning in a static environment from that in a dynamic environment to show the existence of an important interaction between the development of new technologies and human capital accumulation. Because technological progress creates a more dynamic environment, it complements education in the production of human capital by enhancing adaptive skills. Higher levels of adaptability and human capital in turn determine the profitability of new inventions and the incentive to invest in new R&D. Differences in the history of technological progress produce different levels of adaptability and our results suggest why countries that have comparable levels of education and per capita incomes may differ significantly in their growth performance. 相似文献
7.
Our matching problems feature agents with endowments facing certain division rules. At any matching, the endowments of agents are reallocated between the matched pairs according to some given division rule, and this opens doors to an iterated matching problem and rematching, and to manipulation of some matching rules via segmentation. In this form of manipulation a coalition breaks off from the rest, matches within itself and rejoins the complementary coalition for a rematching at the new endowment profile. Under certain division rules this may benefit the coalition who breaks off without hurting the complementary coalition. Furthermore, both may benefit by first matching internally and then rejoining for a new match. 相似文献
8.
9.
Aylin Büyükkaragöz Murat Bas Duygu Sağlam Şaziye Ecem Cengiz 《International Journal of Consumer Studies》2014,38(6):628-635
The aim of the present study was to investigate consumers' awareness, acceptance and attitudes towards functional foods in Turkey. Eight hundred and eight people participated in this study: aged between 20 and 80 years, 38.5% were male and 61.5% were female. Participants were given a questionnaire and were asked to fill it in by themselves to minimize the influence of the interviewer. Results indicated that socio‐demographic characteristics such as age, education level and income level are important indicators of consumers' awareness and consumption of functional food. The results show that the female respondents were 2.987 times more aware of functional food than the male respondents. Similarly, the likelihood of respondents having awareness of functional food was 1.431 times greater among those who had a higher educational level than among those with a lower educational level. Consumers who used vitamin supplements were 1.228 times more aware of functional food than other consumers. The results show that older respondents were 3.395 times more aware of functional food than younger respondents. Respondents with a history of familial diseases were more likely than others to have consumed margarine with plant sterol, fruit juices fortified with vitamin C, and breakfast cereals fortified with vitamins and minerals. Those with a diet‐related problem were more likely to have consumed cholesterol‐lowering products than those without a problem. As a conclusion, this study has shown that socio‐demographic characteristics such as age, education and income levels, and prices are important indicators that influence consumers' awareness and consumption of functional food. These results suggest that this type of knowledge could affect consumers' interest in functional foods, and therefore educational strategies might be necessary to encourage the consumption of functional foods. 相似文献
10.
Quality & Quantity - Blockchain technology (BCT) is a network-based system, which is developed to create secure, smart and transparent distributed ledgers. Recently, BCT has been gaining more... 相似文献