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1.
This paper advances understanding of the complex and adaptive nature of indigenous Fijian communities involved in tourism. It examines how tourism-related development has set the people of one Fijian village along two separate development pathways, and explores how preferential access to tourism benefits has created disparities within the community. Complex Adaptive Systems theory and Social Capital theory are used to conceptualise how over 40 years of tourism involvement has influenced development within an indigenous Fijian community. The findings argue that indigenous Fijian communities are non-homogeneous entities, which are constantly in transition, responding and adapting integratively to both internal and external changes over time. The findings show that the emergence of new behaviours and ways of life has led to the collapse of the pre-existing systems of social capital. As a response, community members retreated and regrouped, strengthening internal bonds and social capital in their smaller social units, leading to both dependency and opportunity-seeking behaviours among participants. Ultimately, the paper asserts that money alone does not lead to development, but rather tourism and access to a variety of capital do.  相似文献   
2.
We introduce a new numerical method called the complex Fourier series (CFS) method proposed by Chan (2017) to price options with an early-exercise feature—American, Bermudan and discretely monitored barrier options—under exponential Lévy asset dynamics. This new method allows us to quickly and accurately compute the values of early-exercise options and their Greeks. We also provide an error analysis to demonstrate that, in many cases, we can achieve an exponential convergence rate in the pricing method as long as we choose the correct truncated computational interval. Our numerical analysis indicates that the CFS method is computationally more comparable or favourable than the methods currently available. Finally, the superiority of the CFS method is illustrated with real financial data by considering Standard & Poor’s depositary receipts (SPDR) exchange-traded fund (ETF) on the S&P 500® index options, which are American options traded from November 2017 to February 2018 and from 30 January 2019 to 21 June 2019.  相似文献   
3.
Understanding the complex and adaptive nature of Pacific Island communities is a growing yet relatively unexplored area in the context of tourism development. Taking an ethnographic research approach, this study examines how over 40 years of tourism development have led to complex and multi-scale changes within an Indigenous Fijian village. The study establishes that tourism development has brought a range of ecological shifts that have, over time, spurred far-reaching changes within the embedded sociocultural constructs of the community. The development of the Naviti Resort, a water catchment dam, a causeway and a man-made island have created substantial changes in totemic associations, livelihood approaches, and traditional knowledge structures within Vatuolalai village. The emergence of internal adaptive cycles, and new behaviours, practices and values that redefine the cultural landscape will be discussed. This paper demonstrates the interconnectivity of nature, society and culture within Indigenous communal systems and asserts that ecological changes introduced in one part of a community stimulate complex, non-linear responses in other elements of the socio-ecological system of a Fijian village.  相似文献   
4.
以中国基金市场中123家基金公司持有的投资组合为样本,综合运用余弦相似度(CS)和最小生成树(MST)方法,考量基金市场复杂网络。结果显示:各家基金公司持有股票组合的相似程度比持有债券组合的相似程度更高,表明他们持有的债券组合较之股票组合更加多元化,基金公司持有的股票相对集中于市值大、成长性高的公司。同时,全部资产投资组合、股票投资组合和债券投资组合等三类基金MST网络的节点度均服从幂律分布,表明大多数基金公司以少数强影响力基金公司为中心聚集起来,彼此之间具有较强的业务关联。此种网络结构特征可能导致市场风险向基金聚集团体集中,其抵御系统性风险的能力偏弱,也不利于满足投资者的理财多元化需求。  相似文献   
5.
蒙海霖  程贵海  覃翔 《价值工程》2021,40(2):120-122
为了保护融水至河池高速公路二分部项目K53桩号附近的老旧民房和村民祠堂,控制露天深孔台阶爆破开挖所产生的振动和飞石、滚石等有害效应对村庄的影响,通过采用露天深孔松动控制爆破的方法,利用数码电子雷管结合毫秒级延期起爆网络进行爆破参数的设计。严格控制单段最大起爆药量,预留靠近民房山体一侧做掩体,确定好延时时间间隔和抵抗线方向以及做好炮孔堵塞和炮孔覆盖等安全技术措施,从而减少爆破振动和飞石、滚石等有害效应。结果发现:爆破效果良好,无飞石和滚石发生,大块率较低,机械易于开挖。祠堂和民房地基采集到的振速数据远低于安全振动峰值。  相似文献   
6.
Small area estimation (SAE) entails estimating characteristics of interest for domains, often geographical areas, in which there may be few or no samples available. SAE has a long history and a wide variety of methods have been suggested, from a bewildering range of philosophical standpoints. We describe design-based and model-based approaches and models that are specified at the area level and at the unit level, focusing on health applications and fully Bayesian spatial models. The use of auxiliary information is a key ingredient for successful inference when response data are sparse, and we discuss a number of approaches that allow the inclusion of covariate data. SAE for HIV prevalence, using data collected from a Demographic Health Survey in Malawi in 2015–2016, is used to illustrate a number of techniques. The potential use of SAE techniques for outcomes related to coronavirus disease 2019 is discussed.  相似文献   
7.
基于耦合共生理论的田园综合体规划模式建构   总被引:1,自引:0,他引:1  
[目的]随着城乡统筹发展,乡村振兴战略的实施已成为解决"三农"问题的关键。2017年中央一号文件在乡村的大背景下,首次提出了"田园综合体"的概念,旨在通过实现农业与其他产业的共生融合,来带动乡村的发展及振兴、农业的转型升级、农民生活质量的提高。通过构建多产业耦合共生的田园综合体规划模式,以期更好地实现农业转型升级以及乡村的发展振兴。[方法]引入物理学中的耦合理论以及生物学中的共生理论进行研究。[结果]从耦合共生单元、耦合共生环境、耦合共生界面三个方面提出集农旅合一、多产业联合、多方参与为一体的田园综合体模式规划理念框架。[结论]以农旅合一的耦合共生单元为基础,将文化作为农业与旅游耦合共生的介质,有助于实现文化内涵的提升以及农业与旅游的协同发展;以多产业联动的耦合共生环境为推手进行合理布局,使多产业联动发展,有助于实现资源的整合利用、农业产业附加值的增加、村落结构的完善、农村特色及文化的传承;以多方共同参与的耦合共生介质为保障,通过政府、市场和公众这三方的共同参与和合作,有助于解决三农问题,带动农村经济的发展,促进乡村统筹发展及乡村振兴战略的实施。  相似文献   
8.
在复杂地质条件下,需要加强高面板堆石坝工程质量管控工作,严格地按照国家出台的质量安全责任规章,提高建设质量。论文主要围绕高面板堆石坝工程、工程质量控制措施两个方面进行探讨,确保混凝土面板堆石坝的施工质量。  相似文献   
9.
This paper explores the unaddressed question of how the large, complex paddy‐rice market in Bangladesh is able to transform itself and evolve, in the face of changing risks and incentives, into a better‐functioning market system. It notes significant but opposing trends over two decades in different areas, particularly in terms of market structure, trade circuits and exchange relations. Evidence of a sharp decline in tied transactions points to the growing importance of impersonal exchange. The underlying causes of these changes are explored, with particular reference to microfinance, remittances, rural roads and mobile telephony.  相似文献   
10.
信息技术产业创新发展的研究具有现实意义。通过文献研究建立信息技术产业创新演化复杂系统研究框架,汇总认知角度的创新层次、产业演化以及演化研究工具和方法等相关研究情况,认为应重视动态、演化和复杂系统的特点,政府介入推动自组织网络的高效率演化和发展,促进网络化学习,避免低端依赖,促进创新效率。创新系统研究应包含认知领域的相关成果,利用演化计算和机器学习方法构建模型,提升对真实行为的模拟仿真和解释能力。  相似文献   
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