Spatial concentration and connectivity of international passenger traffic at Brazilian airports

This paper examines concentration and connectivity of international passenger airport traffic in Brazil. The analysis considers seat supply and scheduled flights from 1999 to 2012. The 2000–2005 period was marked by concentration and limited international flight links, which was followed by the movement to recover capacity and connectivity from 2005 to 2010. Brazil started to liberalize bilateral agreements in 2002, and eventually moved towards the “open skies” concept in 2010, facilitating the process of operational de-concentration and increasing seat supply. The Brazilian government's liberalisation policy through bilateral agreements did not spark off a significant turnaround for national airlines; rather, the revived traffic growth was led by foreign airlines. This movement brought significant changes in the composition of international passenger traffic in Brazil, although changing little in terms of concentration and connectivity. The real change was the dominance of foreign airlines and seat distribution by regions, with the Latin America and Caribbean region shrinking to less than half of the market.     

Reward for failure and executive compensation in institutional investors

We propose a model of delegated portfolio management specialized in alternative investments, i.e., those with a high-return and high-risk profile. It is shown that in this context, as a reward for risk-taking scheme is optimal, a counter-intuitive reward for failure can also be desirable. This property emerges because it can be optimal to compensate extreme returns (even low ones) to encouraging managers to shape highly innovative portfolios. It is argued that this structure resembles compensation practices questioned in the context of the last financial crisis, such as golden parachutes and golden coffins. Implementation via equity and bonuses is also analyzed.     

Optimal timing for annuitization,based on jump diffusion fund and stochastic mortality

Optimal timing for annuitization is developed along three approaches. Firstly, the mutual fund in which the individual invests before annuitization is modeled by a jump diffusion process. Secondly, instead of maximizing an economic utility, the stopping time is used to maximize the market value of future cash-flows. Thirdly, a solution is proposed in terms of Expected Present Value operators: this shows that the non-annuitization (or continuation) region is either delimited by a lower or upper boundary, in the domain time-assets return. The necessary conditions are given under which these mutually exclusive boundaries exist. Further, a method is proposed to compute the probability of annuitization. Finally, a case study is presented where the mutual fund is fitted to the S&P500 and mortality is modeled by a Gompertz Makeham law with several real scenarios being discussed.     

储备土地增值机理与收益测算研究

本文运用实证研究方法探讨了土地增量储备过程中的土地增值机理与土地增值收益测算,以便于确定增值收益分配。依据土地增值原理,可以将土地增值分为“相对增值”和公共增值两部分,并建立“相对增值”和公共增值的计算模型。利用重庆市近年的土地储备交易数据和相关资料,测算出近年来农民集体在土地征收环节的相对增值约占到总增值量的23％,而公共增值约占77％。研究结果显示,现行土地征地补偿制度对农民利益损害严重,应改革征地制度,保障增量储备土地增值收益的合理分配。     

动态能力与联盟绩效：理论与实证

本文首先对于动态能力与联盟绩效进行了文献研究和问卷设计,然后构建了关于企业动态能力与联盟绩效关系的多元回归分析模型。实证研究发现,国内汽车产业供应链联盟企业动态能力对于联盟绩效具有正向影响作用,但是只有组织学习能力维度显著正向影响联盟绩效,而整合能力以及重构与转变能力维度则对于联盟绩效不具有显著正向影响。     

Understanding service attributes of robot hotels: A sentiment analysis of customer online reviews

Robots and artificial intelligence are essential to the future of the hospitality industry, and they are receiving increasing interest from hotel managers and researchers. However, the adoption of robotic services in hotel operations is a challenging task owing to the current level of technology and lack of understanding on the relationship between various aspects of robotic services and customer satisfaction. Moreover, no prior study has examined the service attributes of robots in hotels. To fill these gaps, this study analyzes customers’ sentiments on major hotels employing robotic services expressed through online reviews. A list of robot quality and operational area attributes is first constructed, through which underperforming robot service areas are identified. Sentiments on robotic services have a positive correlation with hotel service satisfaction, which plays an important role in determining the overall satisfaction of customers. The analysis and findings are valuable to researchers and managers for future research and adoption of robotic services in hotels.     

论《马桥词典》的神秘色彩

韩少功的《马桥词典》是其一部具有独特魅力的作品,无论是从小说的形式上还是其所体现的文化内涵上,《马桥词典》都可以称为一部伟大的小说。在文学界对《马桥词典》的各种研究中,对作品里所体现的浓厚的神秘色彩,还没有专门论述,故本文将从《马桥词典》的神秘色彩着眼,着重从作品中神秘色彩的呈现、神秘色彩的来源以及神秘色彩的意义三方面来进行分析论证,以期进一步探索作者的思想内涵和作品的审美意蕴。     

文化视域：中西悼亡诗中的女性形象——兼谈元稹与弥尔顿的悼亡诗

中西方悼亡诗虽然由于文化语境而存在差异,但是二者都是用哀伤的调子唱出的赞美诗.中国古代悼亡诗中的女性形象大多是贤妻良母型的,而西方悼亡诗中的女性形象多纯洁貌美.这源于中西方文化的不同：中国古代文化是道德文化,男性往往追求社会价值,家庭只能退居其次.女性作为家庭的主要牺牲者,只有当她死亡时,男性才能体会其重要性,于是悼亡诗成为彰显妻子美德的颂歌.西方文化是科学文化,这种文化的抽象性和分析性、个体本位的人本主义特性使西方人崇尚理性和自由,注重表现自我情感,女性被看成独立的个体,此外爱美的传统使妇女具有较高的社会地位,因此在西方西方悼亡诗中,女性是爱和美的化身.     

贫困性农户金融供给：市场失灵与政府责任

通过对贫困性农户金融供给现状进行简要分析,揭示了在市场机制主导下,农村正规金融市场与非正规金融市场对于贫困性农户的资金支持都是不足的,也就是说,农村金融市场对于贫困性农户存在市场失灵现象。政府应对金融市场进行干预。     

市民结构变化中市民素质教育的路径

经济的发展和城市化进程的加快,使城市人口的数量激增,市民结构也相应发生明显变化。这些新增市民为城市的各行各业注入了生机与活力,并逐渐成为城市的主人。他们在无形中改变着市民结构,也影响着市民素质的提升。素质教育的严重滞后,制约着城市的综合发展,动摇着城市现代化的基础。通过指出市民结构变化中市民素质存在的问题,探索素质教育的可行性路径,促进人与城市、人与教育的和谐发展。