A multi-level approach to the study of production chains in the tourism sector

This paper proposes a multi-level approach to analyse the production chains in which two characteristic tourism activities – the hotel and travel agency industries – participate. Firstly, from a macroeconomic perspective, input-output techniques are used to identify the most significant tourism production chains from the regional input–output table of Andalusia (Spain). Secondly, from a microeconomic perspective, a different approach is taken based on the concept of Global Value Chains (GVC). In this respect, the structure and main agents participating in the tourism GVC are presented, and the role of small and medium-sized enterprises (SMEs) in the hotel and travel agencies industries in Andalusia is put forward. Finally, these two approaches are compared and connected, exploring some characteristics of these tourism production chains at the mesoeconomic level of analysis.     

物流模式选择的模糊多目标决策模型

在考虑物流服务商评价准则及限定条件的多样性和不确定性的前提下,在已有研究的基础上构建一种物流模式选择的模糊多目标决策模型,并且采用最大最小算子构建来属函数的方法对此模型进行规划求解.同时,还进一步提出了当考虑决策者对各个目标的偏好不同时,如何为各个目标赋予权重并求解,较好地保证了权重排序和隶属度排序具有较高的一致性,帮助决策者更好地选择出物流服务供应商.     

浅议国际多式联运中如何更好地分清各方责任

对国际多式联运的网状责任制原则与多式联运经营人的赔偿责任限制进行了理论综述,指出网状责任制的最大弊端和实践中国际货运市场供求关系决定责任归属的现状。通过尝试从企业实践中另辟蹊径,提出了货运单据和科技创新设备在划分各关系方责任方面的实际作用。     

一类非单调二元算子方程解的存在唯一性

利用锥理论和非对称迭代方法,讨论了一类非单调二元算子方程解的存在唯一性,给出了迭代序列收敛于解的误差估计,所得结果是某些已知结果的改进和推广。     

Would a single regional visa encourage tourist arrivals in southern Africa?

Although many studies have been done of factors impeding Africa's development as a tourism destination, few have focused on southern Africa, and to date none have questioned whether the current visa requirements affect the region's tourism industry. This paper investigates the potential impact of the so-called Univisa, a single visa for the Southern African Development Community (SADC) region proposed by SADC and the Regional Tourism Organisation of Southern Africa. It examines the possible effect of visa requirements on a destination's accessibility and visitor numbers. Two surveys revealed that inbound and outbound tour operators were relatively positive about the benefits the proposed Univisa would bring, but were concerned about other factors hindering tourism development in the region. The study revealed the complexities of a regional visa and found that even though a regional visa might alleviate some problems, it cannot be seen as an answer to the slow development of tourism in this region.     

我国自然保护区经营主体选择的经济学分析框架

建立自然保护区是保护生物多样性的首选途径,如何对已建立的自然保护区进行有效的经营以实现其可持续发展,则是世界各国共同面临的重要课题。中国自1998年四川万贯集团协议开发碧峰峡风景名胜区取得突破性的成效之后,曾掀起政府转让自然保护区经营权的热潮,引起了学术界广泛的争论。以公共经济学和福利经济学的理论为基础,构建了一个自然保护区经营主体选择的分析框架,为选择政府还是企业作为自然保护的经营主体提供了一个新的思路。     

网状责任制与统一责任制下第三方物流经营人的责任形式与追偿

从第三方物流经营人的法律地位入手,探讨两种国际通行责任认定制度下,其对合同委托方应当承担的责任形式及对第三方的追偿行为,旨在构建适用于我国国情的第三方物流经营人责任认定制度。     

Supply‐side perspectives on ecotourism in Northern Thailand

This study provides a supply‐side perspective on ecotourism by exploring the ways in which travel agents and tour operators in Chiang Mai, Thailand conceptualise, prioritise and furnish ecotourism. Although travel agents and tour operators serve as crucial intermediaries between tourists and destinations, the ecotourism literature has largely ignored the ways in which retailers and suppliers of tourism experience approach and define ecotourism. Using quantitative data gathered from 300 travel agents and tour operators, this paper illustrates that the conceptualisation of ecotourism among agents and operators in Chiang Mai is expansive, flexible and, in some ways, internally contradictory. Copyright © 2010 John Wiley & Sons, Ltd.     

具有自回归误差的变系数模型的变量选择

基于局部线性估计方法研究误差具有自回归结构的变系数回归模型,讨论利用估计的残差和LASSO方法对误差部分进行定阶和估计的统计推断问题.通过蒙特卡洛模拟方法对比研究,揭示具有良好性质的局部多项式估计方法的有效性.     

创新特种设备作业人员培训考核管理举措

围绕特种设备安全监察机构面向特种设备作业人员的培训工作,阐述搭建培训网络教学平台,更新动态管理学员档案及无纸化考核等新举措入手分离培训、考核、发证环节,确保监察机构严格执行鉴定工作规范化、技术标准化和管理现代化。