全文获取类型
收费全文 | 481篇 |
免费 | 24篇 |
专业分类
财政金融 | 70篇 |
工业经济 | 29篇 |
计划管理 | 64篇 |
经济学 | 201篇 |
综合类 | 2篇 |
运输经济 | 2篇 |
旅游经济 | 1篇 |
贸易经济 | 73篇 |
农业经济 | 29篇 |
经济概况 | 34篇 |
出版年
2023年 | 8篇 |
2022年 | 1篇 |
2021年 | 9篇 |
2020年 | 5篇 |
2019年 | 16篇 |
2018年 | 17篇 |
2017年 | 18篇 |
2016年 | 14篇 |
2015年 | 14篇 |
2014年 | 19篇 |
2013年 | 63篇 |
2012年 | 17篇 |
2011年 | 17篇 |
2010年 | 21篇 |
2009年 | 18篇 |
2008年 | 18篇 |
2007年 | 29篇 |
2006年 | 16篇 |
2005年 | 24篇 |
2004年 | 16篇 |
2003年 | 18篇 |
2002年 | 16篇 |
2001年 | 11篇 |
2000年 | 12篇 |
1999年 | 12篇 |
1998年 | 11篇 |
1997年 | 4篇 |
1996年 | 8篇 |
1995年 | 6篇 |
1994年 | 4篇 |
1993年 | 3篇 |
1992年 | 4篇 |
1991年 | 1篇 |
1989年 | 3篇 |
1988年 | 6篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1983年 | 5篇 |
1982年 | 4篇 |
1981年 | 4篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 3篇 |
1975年 | 3篇 |
排序方式: 共有505条查询结果,搜索用时 0 毫秒
501.
This paper analyses the role of news media in (re)producing geopolitical narratives of food insecurity in relation to the 2007–2008 global food price spike. News content and textual analysis suggests that the media’s representation of the food price spike is partly framed by Western geopolitical anxieties of the ‘threatening rise of Asia’, and features ‘fast growing’ Asian appetites among the main culprits of the crisis. Seeking to explain the widespread circulation of such representation, this paper analyses media-source relationship within the context of market-driven journalism, and suggests that the changing role of news media has in turn contributed to a rapid and uncritical circulation of elite-based interpretation of, and neoliberal geopolitical approach to, food security. The paper points at the importance of critical enquiries into geopolitical representations of food insecurity and of opening media space for a ‘counter-geopolitics of food security’. 相似文献
502.
Philippe Chevalier Isabelle Thomas David Geraets Els Goetghebeur Olivier Janssens Dominique Peeters Frank Plastria 《Socio》2012,46(2):173-182
This paper illustrates the potential of a decision-support system developed for Belgium by a consortium of universities and a private firm, in the framework of a public call made by the Ministry of the Interior. The system is designed to provide the Belgian emergency management administration with a complete decision-aid tool for the location of fire stations. The originality of the project is that it includes a risk-modeling approach developed at a national scale. This analysis involves a multiscale GIS that includes a thorough representation of the physical, human and economic spatial realities, a risk-modeling approach, an adequate optimal location and allocation model (taking into account both queuing and staffing problems). The final result is an interactive operational tool for defining locations, equipment allocations, staffing, response times, the cost/efficiency trade-off, etc. This flexible tool can be used in an assessment as well as a prospective context. It has been used to draw a national reorganization plan for fire stations that started being implemented in 2010. 相似文献
503.
Lunetta P Tiirikainen K Smith GS Penttilä A Sajantila A 《International journal of injury control and safety promotion》2006,13(1):35-41
In Finland, the Finnish Association for Swimming Instruction and Life Saving (SUH) and Statistics Finland (SF) both provide nationwide data on unintentional drowning. The SUH database relies on rapid reporting from a newspaper clipping service and additional local police information, whereas the SF database relies on the later release of the death certificate information, which is based on extensive medico-legal investigation. The aim of the study was to explore the main differences between the SUH and SF databases for drowning and to evaluate the capacity of the former to characterize drowning events in Finland from 1998 to 2000. Computerized files of death certificates tabulated by SF were linked with the SUH database by deterministic methods. SF and SUH databases allowed the identification of 704 and 567 unintentional drownings, respectively, giving an unintentional drowning rate of 4.5 and 3.6/100?000 per year. Of the 704 drownings described by SF, 418 (59.4%) were also found in the SUH database. The SUH database markedly underreported drowning fatalities in certain settings, such as bath, ditch and swimming pool drownings; fall- and land-traffic-related drownings; and drownings occurring in South Finland. The narrative text of SUH drownings contributed limited information to characterize the drowning events. It was concluded that the newspaper-based SUH data provide more timely data on individual drownings but are not representative of all drownings. Conversely, the SF vital statistics data are more accurate but may take up to 2 years to become available. Both SUH and SF data provide little detailed information on drowning events. A multidisciplinary national surveillance system for drowning is necessary to provide more accurate and timely drowning data, analyse risk factors and design follow-up studies for developing and monitoring prevention strategies. 相似文献
504.
Alexandre Sauquet Franck Lecocq Philippe Delacote Sylvain Caurla Ahmed Barkaoui Serge Garcia 《Resource and Energy Economics》2011,33(4):771-781
Domestic and foreign forest products consumptions are considered imperfectly substitutable in the French Forest Sector Model (FFSM). This assumption is justified by product heterogeneities that depend on production places, by the consumers habits or by the market structure. It leads us to implement the international trade in the FFSM via the Armington's theory of the demand for products distinguished by place of production. In this paper we propose a calibration of Armington's elasticities of substitution between French and foreign forest products. System-GMM estimators are applied to identify robust parameters using a panel data from France customs service. 相似文献
505.
This paper analyzes the effects of extreme temperature on manufacturing output using a data set covering the universe of manufacturing establishments in Canada from 2004 to 2012. Extreme temperature can affect manufacturing activity directly through its impact on labour productivity and indirectly through a change in demand for products. Using a panel fixed effects method, our results suggest a non-linear relationship between outdoor extreme temperature and manufacturing output. Each day where outdoor mean temperatures are below °C or above 24 °C reduces annual manufacturing output by 0.18% and 0.11%, respectively, relative to a day with mean temperature between 12 ° and 18 °C. In a typical year, extreme temperatures, as measured by the number of days below °C or above 24 °C, reduce annual manufacturing output by 2.2%, with extreme hot temperatures contributing the most to this impact. Given the predicted change in climate for the mid- and end of century, we predict annual manufacturing output losses due to extreme temperature to range between 2.8% and 3.7% in mid-century and 3.7% and 7.2% in end of century. 相似文献