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The future of road transport, being currently reliant on carbon-based liquid fuels, is largely unclear. Some advocate the necessity of single renewable energy paradigm, but its realization is potentially fraught with difficulty owing to technological challenges, existing sunk costs, and path dependencies associated with existing and emerging options. It could also result in disadvantageous outcomes to emerging economies. Another school of thought proposes that future road transport, even within single nations, will require multiple energy types, mainly because a single source will be insufficient to meet projected needs. A multiple paradigm has the potential to be expensive because several infrastructures have to be implemented simultaneously. This paper aims to assess both concepts by considering the largely neglected dimensions of resource location and regional geophysical attributes, in addition to national technical expertise, industry capacity and modal factors. Case studies from both the developed world (the European Union and Australia) and the developing world (sub-Saharan Africa and China) will assess the possibility of implementing a single transport energy paradigm versus a more pluralistic regime. The results will help to inform policy making and enable greater foresight with regard to making long-term transport infrastructure investment decisions.  相似文献   
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This study explores the extent to which young volunteers perform voluntary service for selfless reasons by investigating the role of altruism, empathy, and beliefs in their commitment to voluntary projects that last for an extended period of time. A sample of young volunteers who have begun a voluntary long-term project completed a survey on the theoretical constructs under investigation. An objective measure of actual volunteering behavior was taken from the voluntary organization’s records from 4 to 6 months after the questionnaires had been completed. Results show that volunteers fulfilled their agreement to take part in the projects independently of the motivation underlying their behavior, whether egoistic or altruistic. Volunteers do not differ in terms of altruism, empathy, and attitudinal and normative beliefs when compared by levels of committed volunteering behavior, but they do differ in terms of two control beliefs: lack of time and the hindrances to volunteering work.  相似文献   
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Ethical consumption studies in developed countries suggest consumers are becoming more ethically minded, as manifested in the shift toward purchasing ethical products. However, little is known about ethical consumption in developing countries, which is problematic because these countries host the greatest share of the world’s youth population. In this study, the authors examine the perceptions and motivations of Indonesian college student consumers toward corporate social responsibility (CSR). The authors find that despite the country-based differences, Indonesian college students express perceptions of CSR similar to those of consumers in developed countries. Furthermore, female consumers have stronger intentions to support ethical products than their male counterparts.  相似文献   
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Increasingly, innovation is conceived in a context of conventions or rules and complexity. However, there is a need for a theoretical basis that describes the innovation process based on complexity. In this essay, we propose a multilevel micro-meso-macro framework that aims to meet this need and further the discussion on complexity. In this framework, the rule is adopted as an analytical concept and used to establish a bridge between the several theories employed. Two gaps are identified in the innovation process: the first is related to the simplicity with which complexity is generally treated, and the second refers to a lack of focus on the rules embedded in the theories used in innovation. The goal of this theoretical essay is to propose a multilevel micro-meso-macro framework, based on the rules and principles of complexity, which can be used to analyze the innovation process. As a result, we propose a new framework in which the innovation rules and the interactions between those rules are detailed and based on principles of complexity.  相似文献   
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Ground-based transport moves more tourists than any other form of transportation and contributes c. 32% of tourism's carbon dioxide (CO2) emissions – yet remains a largely neglected area of emission/carbon management research. This study examines the value of vehicle monitoring technology (VMT) and eco-driver training as a means to improve fuel efficiency and reduce CO2 emissions for a fleet of vehicles at the largest ski resort operation in Ontario, Canada. The VMT was installed in 14 fleet vehicles. After eco-driver training, the fleet reduced its average daily speed (?14%), hard decelerations (?55%), hard accelerations (?44%), and idling time (?2%), resulting in decreased fuel costs (?8%) and CO2 emissions (?8%). The process requires very low capital expenditures, can pay for itself in as little as one year, and has safety paybacks. It also has valuable externalities: tourism businesses that instill sustainability awareness and values to their employees contribute to environmental prosperity generally, because eco-trained drivers also drive more efficiently in their everyday lives. This is the first known study to quantify the benefits of driver training and behavioral intervention within a tourism context, demonstrating the potential to enhance environmental sustainability while simultaneously reducing operating costs. Technicalities, issues, and future application possibilities are discussed.  相似文献   
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Conditional cash transfer programs seek to break the intergenerational transmission of poverty by building the human capital of poor children. Despite their popularity throughout the developing world, relatively little is known about their effect on children's health outcomes. This paper evaluates the impact of the Mexican conditional cash transfer program, Progresa, on two important health outcomes: infant and neonatal mortality. It exploits the phasing-in of Progresa over time throughout rural Mexico to identify the impact of the program. The paper shows that Progresa led to a large 17% decline in rural infant mortality among the treated, but did not reduce neonatal mortality on average. The benefit-cost ratio is between 1.3 and 3.6. Tests for heterogeneity show larger declines for some groups including those municipalities whose pre-program levels of mortality were above the median, and those that prior to the program had higher illiteracy rates, and less access to electricity.  相似文献   
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