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This paper provides a unified treatment of oil stockpiling and demand restraint as policy responses for enhancing energy security and examines the implications of recent changes in the structure and performance of the international oil market for the design of policies. These issues are addressed using a dynamic programming framework in which international policy actions of key oil-importing countries are modeled as a Nash dynamic game. Significant policy implications from the analysis include: (1) the result that, with realistic assumptions about disruption risks and inventory capacities, differences between noncooperative and coordinated stockpile policies appear to be minor and (2) significant mutual gains could be reaped from a modest degree of collective restraint on normal market oil demand. The broader role of international cooperation in enhancing energy security is also discussed.  相似文献   
996.
Lum D  Cheung LY  Cho ER  Tang TY  Yau HB 《Social casework》1980,61(2):100-106
Changing Chinese family patterns caused by immigration have contributed to the breakdown of traditional community and familial control in Chinese-American families. As a result, the Chinese-American elderly are faced with unique psychosocial problems that workers must consider when providing services to this population.  相似文献   
997.
Two surveys were conducted of volunteers working for recreation organizations in four New South Wales regions. The results highlight the dependence of these organizations on volunteers. Volunteers were found to be heavily engaged in instructing and organizing recreation activities. Few have any specific training for the role although further training is frequently considered desirable by respondents. Many respondents indicated that the government could assist voluntary work by providing— ? training at the local level, ? general financial assistance, and ? subsidies for equipment and facilities. Generally, responses indicate that the government should play a supportive rather than controlling role in recreation.  相似文献   
998.
Correspondence to John Harris, School of Health and Social Studies, University of Warwick, Coventry CV4 7AL, UK. E-mail: j.harris{at}warwick.ac.uk Summary The notion that social work is an international profession,operating with generally similar goals, methodologies, and commonvalues is considered critically. Examining the political andsocial contexts of three countries with liberal democratic governments—Australia,Britain and the United States—the role of social workwithin the welfare processes of each country is compared. Whilesocial work as an identifiable professional activity sharessome features, it is argued that the idea of its having a coreessence needs to be tempered with a realistic assessment ofthe importance of contextually created difference. Recent andrapid developments in the institutional context, such as thoseexperienced in these three countries, further underscore thelimited utility of the notion of a common professional project.  相似文献   
999.
The concept of "psychological trauma" conflates emotional responses to traumatic events such as motor vehicle accidents, muggings, and house fires, responses to natural disasters such as earthquakes and volcanic eruptions, and responses to war, chronic physical abuse, prolonged torture, and repeated gang-rape as an act of "ethnic cleansing." It is argued that, from a psychological, human, and moral perspective, use of a single construct to describe responses to such a range of horrific happenings makes no sense. The benefits and limits of conceptualizing PTSD as a unifying concept for describing psychological responses to calamitous events are discussed. The consequences (with respect to clinical work, research, and social policy) of failing to distinguish between responses to relatively circumscribed traumatic events, more extreme, prolonged, or repeated individual traumatization, and collectively experienced mass violence against entire communities are examined.  相似文献   
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