OPTIMAL INSURANCE DESIGN UNDER RANK‐DEPENDENT EXPECTED UTILITY

We consider an optimal insurance design problem for an individual whose preferences are dictated by the rank‐dependent expected utility (RDEU) theory with a concave utility function and an inverse‐S shaped probability distortion function. This type of RDEU is known to describe human behavior better than the classical expected utility. By applying the technique of quantile formulation, we solve the problem explicitly. We show that the optimal contract not only insures large losses above a deductible but also insures small losses fully. This is consistent, for instance, with the demand for warranties. Finally, we compare our results, analytically and numerically, both to those in the expected utility framework and to cases in which the distortion function is convex or concave.     

An Integrated System to Acquire Knowledge and Support Decisions in Complex Innovation Design Processes

A system that integrates tools from different disciplines, ranging from cognitive and social psychology to multicriteria analysis and mathematical programming, is introduced to cope with the complexities and uncertainties that generate criticality in the organization innovation processes. An intelligent combined use of tools can facilitate the integration of unstructured or semistructured information resources and support individuals or groups of stakeholders in a complex environment, in order to structure a problem situation, to agree on a “problem focus” and to make commitments on a set of possible actions. The purpose of this article is to examine the potentiality of this system, above all in terms of knowledge acquisition, fusion, and use in various organizational contexts, and to describe an application in relation to an industrial project, in order to support the conceptual phase of the design process.     

《三亚市旅游民宿管理办法》制定的必要性与可行性分析

近年来,旅游民宿在全国各地迅猛发展。一方面,旅游民宿盘活了部分农村闲置住宅资源,在美丽乡村建设和乡村振兴战略中发挥了重要作用。但另一方面,旅游民宿在急速扩张中也存在着大量棘手的瓶颈问题急需得到有效解决,引发的社会治理问题更需要动用依法治旅这一“新利器”加以规范。论文阐述了《三亚市旅游民宿管理办法》制定的背景、必要性、可行性,以期推动办法的颁布,依法治理旅游民宿问题。     

一类变分不等式问题与无约束优化问题的等价性

本文主要研究了一类变分不等式问题在满足一定的广义凸性的前提下,与一类无约束优化问题的等价性关系。     

An econometric study of tourist arrivals in Aruba and its implications

The principal purpose of this study is to analyze econometric estimates in order to explain tourist arrivals to Aruba from the United States, The Netherlands and Venezuela. The study specified a dynamic econometric model for modeling short term as well as the long-term responses. It estimated both linear and log-linear functions, and it applied the Box–Cox statistical method to determine the appropriate functional form. The inclusion of Venezuela as a developing country permitted the comparison of the behavior of tourism demand in relatively rich and poor countries. The results indicated the extent to which cross-country behavior of demand differs with respect to changes in effective prices and exchange rates. This study can assist in the formulation of future macroeconomic policies as well as market and pricing strategies in a small or microstate economy.     

资源管理学科发展初论

文章通过对资源科学学科发展现状和研究进展分析 ,提出管理问题是资源问题中最大的科学问题 ,要突出重视资源管理科学研究 ,从而推动资源科学的整体发展 ,提高资源管理能力和资源决策支持能力。文章就资源管理学科发展、学科建设、学科分类及各类资源管理学科的任务和研究方向提出了若干建议。     

Multi-subject stochastic blockmodels with mixed effects for adaptive analysis of individual differences in human brain network cluster structure

Recently, there has been a renewed interest in the class of stochastic blockmodels (SBM) and their applications to multi-subject brain networks. In our most recent work, we have considered an extension of the classical SBM, termed heterogeneous SBM (Het-SBM), that models subject variability in the cluster-connectivity profiles through the addition of a logistic regression model with subject-specific covariates on the level of each block. Although this model has proved to be useful in both the clustering and inference aspects of multi-subject brain network data, including fleshing out differences in connectivity between patients and controls, it does not account for dependencies that may exist within subjects. To overcome this limitation, we propose an extension of Het-SBM, termed Het-Mixed-SBM, in which we model the within-subject dependencies by adding subject- and block-level random intercepts in the embedded logistic regression model. Using synthetic data, we investigate the accuracy of the partitions estimated by our proposed model as well as the validity of inference procedures based on the Wald and permutation tests. Finally, we illustrate the model by analyzing the resting-state fMRI networks of 99 healthy volunteers from the Human Connectome Project (HCP) using covariates like age, gender, and IQ to explain the clustering patterns observed in the data.     

浅谈口腔医疗企业如何开展网络营销

当前,我国口腔医疗行业同质化竞争严峻。新形势下,网络营销成为主流营销手段。口腔医疗企业要想在行业中巩固或扩大自己的市场份额,就需要跟上时代的步伐,掌握前沿的网络营销手段。因此,企业需要制定并实施具有自身特色的网络营销方案。论文就口腔医疗企业如何开展网络营销进行分析讨论。     

人民币升值的市场压力分析

中国长期以来的经常项目和资本项目双顺差使人民币面临了巨大的升值压力,而中国外汇市场的非市场化没有将这种压力转化为价格的上升。最近两年来,美元的贬值进一步加大了人民币升值的外部压力。中国目前这种汇率形成机制带来了许多弊端,政府应当做的是进一步提高外汇市场的市场化程度,改进人民币汇率的形成机制。     

论“世界历史”对“类”意识生成的意义

“世界历史”作为唯物史观的一个重要范畴，特指资本主义建立大工业以来，各民族、国家通过普遍交往，进入全面相互影响、相互渗透、相互制约、相互依存的状态，使世界整体化以来的历史。它对“类”意识的生成具有重要意义：一是它打破了民族和国家之间的地域界限，从而清除了当代“类”意识生成的地域性障碍；二是它突出了人类文化精神中的整体精神，促进了个人本位向“类”本位的复归。