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31.
Defence economics uses the tools of economics to study the defence sector and its domestic and international implications. Simple models require careful application in defence economics, since indirect effects may have counterintuitive impacts. For example, while certain arms races can lead to the outbreak of war, others may have the counterintuitive effect of discouraging the outbreak of war owing to mutual deterrence.

The world is now multipolar rather than bipolar, analogous to an oligopoly situation. This multipolar world can be analyzed by a qualitative characteristic function, where the formation of a potential coalition allows study of the shift from conflict to cooperation in international relations. Some new issues to be considered in this framework include accidental nuclear war, potential arms races and conflicts in the third world, and the proliferation of chemical weapons and missiles.  相似文献   
32.
分析了在重要孤立系统中采用微电网供电的必要性,在此基础上提出了采用由非支配排序法和拥挤距离排序法改进的粒子群算法进行微电网选址定容,其目的是改进多目标微电网规划问题的优化结果。通过改进算法与基本算法算例结果的对比分析,验证了改进算法在求解孤岛选址定容问题上具有较强的寻优能力、较高的收敛精度和较稳定的最优解,为进一步研究微电网孤岛选址定容问题提供了思路。  相似文献   
33.
Impressive investment and growth figures and commercial write-ups enthusing about ‘Africa rising up’, ‘the continent of the future’, and so on, obscure the poverty, illiteracy, poor health and other hardships afflicting the vast majority of African people. Why has massive so-called development and technical ‘aid’ not created the expected dynamic, autonomous economic progress? A blind eye is delicately being turned to the decisive role of people – more specifically, the cultural element. Notwithstanding good intentions, outsiders seeking to promote development assume that black Africans think and act like they only need more education, training and finance in order to ‘catch up’. Outsiders easily forget that since time immemorial, Africans have developed and cherished worldviews and cultures of their own. While these are by no means immutable and do adapt to changing needs and outside influences, Africans refuse to cast off overnight the heritage that makes them the people they are. This paper examines the impact of witchcraft as an integral feature of traditional culture on African existence, notably community life, religion, politics, the law, and economic practice. It stresses the significance of traditional society's powerful egalitarian impulses as well as its profound conviction that all things – goods, wealth, well-being and life force – are in a strictly limited supply that cannot be increased, but can only be redistributed by force or through magical manipulation. While modern life gradually weakens the influence of witchcraft beliefs – in Europe these flourished well into the 18th century – the exasperation associated with Africa's headlong urbanisation actually bolsters these beliefs.  相似文献   
34.
In yet another wave of discussion on nuclear disarmament among political scientists and practitioners, one of the topical issues concerns the problem of transparency, its mechanisms, costs, and benefits. Numerous—though often abstract—calls for greater transparency of nuclear arsenals and postures when promoting the idea of nuclear disarmament, however, do not give a clear rationale for states possessing nuclear weapons to pursue greater transparency. Meanwhile, many other research fields—such as economics and psychology—attempt to address problems related to the lack of exact information on the counterpart's activities and intentions. Economics offers one probable analog for the transparency problem: the issue of information asymmetry and its consequences. This article is an attempt to apply the classical model of a market with information asymmetry to the analysis of the transparency problem within the nuclear disarmament process. Such an approach could help pave the way for closer cooperation between economic and political scientists in the nuclear disarmament field.  相似文献   
35.
Lot splitting refers to breaking a production lot into smaller sublots during production. Coordinating lot splitting decisions across multiple stages of a production process is a challenging task. Traditional lot splitting and lot streaming models implicitly assume that the entire system is operated and owned by the same firm, or there exists a coordinator who controls the operation of all machines in the system. In this paper, we consider the situation where the machines in a multiple‐stage production process are owned and managed by different companies. Every item in a given production lot has to go through the processing by the supplier's machine, followed by the manufacturer's machine, and so on. We develop and analyze coordination mechanisms that enable different parties in the supply chain to coordinate their lot splitting decisions so as to achieve a systemwide optimum. © 2004 Wiley Periodicals, Inc. Naval Research Logistics, 2004  相似文献   
36.
Recent discoveries of significant mineral deposits offer Afghanistan the opportunity to attain a level of economic development sufficient to stabilize that country's volatile security situation while providing Afghans with a reasonable standard of living. Much, however, depends on whether Afghanistan can avoid the “Natural Resource Curse,” an inter-related set of economic and social pathologies that often bedevil resource-endowed countries. In this article, the authors describe the Natural Resource Curse, evaluate the obstacles it raises for Afghan economic development, and offer a strategy to minimize the risks Afghanistan faces in its efforts to exploit its mineral wealth for the benefit of the population.  相似文献   
37.
结合器材供应的实际,构建了一个国家仓库-地区仓库形成的二级库存-运输系统,以最低费用为目标,建立了该系统的联合经济订购模型,求解了该系统各仓库的最佳订货量和订货次数;运用该模型对3种订货策略(年度1次订货、年度多次订货、零库存订货)进行了算例验证,表明了该模型在优化多级库存运输系统订货参数方面的意义。  相似文献   
38.
建国后党对中国社会结构的认识经历了从阶级到阶层的发展变化。党对中国社会结构认识的变化,是在总结对中国社会结构分析的经验教训的基础上,恢复了阶级阶层这两个范畴的本来面貌。我们应当正确地认识这一变化,澄清对阶级阶层的分析思路,这样才能正确看待新的社会阶层的社会属性,以便更充分地发挥他们在社会主义建设中的作用。  相似文献   
39.
纵观新民主主义革命时期的根据地创建,总结了不同时期和不同地方革命根据地经济建设的共同特点,探析了党在根据地时期经济建设的经验和对我国现阶段经济建设的启示。  相似文献   
40.
新疆是少数民族聚居的地区,发展少数民族教育意义重大。除了必要的硬件设施外,我们还需要适应少数民族地区特点的教育模式。开发校本课程,使之与国家课程相得益彰,共同促进少数民族教育的发展进而带动地区经济的发展成为必需。针对新疆这一具有民族特殊性的地方,如何有效的开发校本课程并使之落到实处成为解决问题的关键。  相似文献   
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