基于谈判集的模糊合作博弈的收益分配方案

为了弥补核心作为博弈解可能为空集的缺陷,将经典合作博弈中的谈判集解拓展到模糊合作博弈中,提出了模糊合作博弈的模糊谈判集的概念.探讨模糊网络博弈的模糊谈判集和核心的等价性质,并对相关结论加以证明.研究表明,模糊合作博弈的模糊谈判集是经典合作博弈谈判集的自然拓展,该结果丰富了对模糊合作博弈的解的研究,也表明了模糊网络博弈核心的非空性,进而保证其最优分配方案的存在性.     

Uses and Gratifications of Pokémon Go: Why do People Play Mobile Location-Based Augmented Reality Games?

In recent years, augmented reality games (ARGs) such as Pokémon Go have become increasingly popular. These games not only afford a novel gaming experience but also have the potential to alter how players view their physical realities. In addition to the common experiences and gratifications people derive from games, (location-based) ARGs can afford, for example outdoor adventures, communal activities, and health benefits, but also create problems stemming from, for example privacy concerns and poor usability. This raises some important research questions as to what drives people to use these new applications, and why they may be willing to spend money on the content sold within them. In this study, we investigate the various gratifications people derive from ARGs (Pokémon Go) and the relationship of these gratifications with the players’ intentions to continue playing and spending money on them. We employ data drawn from players of Pokémon Go (N = 1190) gathered through an online survey. The results indicate that game enjoyment, outdoor activity, ease of use, challenge, and nostalgia are positively associated with intentions to reuse (ITR), meanwhile outdoor activity, challenge, competition, socializing, nostalgia and ITR are associated with in-app purchase intentions (IPI). In contrast with our expectations, privacy concerns or trendiness were not associated with reuse intentions or IPI.     

Empirical study on Game Transfer Phenomena in a location-based augmented reality game

Research on Game Transfer Phenomena (GTP) has demonstrated that playing video games can lead to re-experiencing images, sounds, tactile sensations, spontaneous thoughts and actions, sometimes triggered by physical objects/events associated with the game. Location-based augmented reality games posit interesting questions regarding GTP, particularly because they use physical locations, they overlay digital images in physical contexts and the gameplay shifts between the virtual and the physical world. This study aims to investigate the prevalence of GTP and the role of immersion, augmented reality and sound in a sample of English- (EnS) and Spanish- (SpS) speaking gamers of the game Pokémon Go (PoGo). A total of 1313 gamers (M_age?=?31.47) were recruited online. GTP was less common than in previous studies; however, 82.4% had experienced GTP at least once. The SpS showed higher prevalence of GTP and played more intensively. Automatic mental processes predominated in the EnS, while behaviours and actions were more common in the SpS. The absence or presence of video game features seems important for the way GTP manifests. For instance, tactile hallucinations were more prevalent, while sensations of self-motion were less reported. Playing with augmented reality (AR) and sounds showed significant correlations with various GTP types, but not with re-experiencing images from the game. More gamers who reported the sensation that Pokémon were physically present or looked for Pokémon outside the screen while playing, as connotations of immersion, had experienced GTP. Experiencing GTP while playing may be more common in location-based augmented reality games, compared to other games.     

大型运动会专用道设置的交通规划模型

大型运动会要求主办方在规定时间内将指定人员从运动员村运送到指定比赛场馆.为满足运送时间的要求,通常采用设置专用通道的方法.在满足运送时间的条件下,需要最小化设置专用通道的总成本.提出一个新的交通问题:大型运动会专用道设置的动态交通规划问题.本文为该问题建立了能反映实际问题的数学规划模型.该模型是一个整数非线性规划模型.通过对非线性模型的线性化,可以得到一个整数线性规划模型,并通过数学规划软件求解该线性模型.以广州亚运会为例,详细介绍并分析了对于该问题的建模与求解过程.     

不同信息结构下投资决策的期权博弈分析

论文中以一个简单二阶段博弈为例给出了不同成本信息结构下(对称、单边非对称、双边非对称)双寡头市场中各公司的均衡决策。通过分析可以看出,不仅市场结构、决策的次序影响公司的收益和数量,而且信息结构也对公司的收益和数量产生影响。     

两发电集团竞价上网有限次重复博弈研究

运用博弈论中重复博弈的原理,建立了电力市场两发电集团竞价上网有限次重复博弈模型,并对模型的纳 什均衡解进行分析。认为当2uM>uH>uM+uL且uM≥2uL时,触发策略会使发电侧合谋的发生,这种合谋对电力市 场的稳定是不利的。电力市场管理部门通过对报价上下限的控制,可以有效防止竞价者合谋的发生。     

How does a bank's involvement interplay with a firm's capacity investment? An analysis and comparison of different consortium structures

As nonrecourse project finance (rather than financing on a sovereign basis) is becoming more prevalent worldwide, financing institutions have to collaborate more closely with firms to optimize capacity‐investment and financing decisions. Under this background, this paper presents a stylized Stackelberg games model, taking into account the firm's capacity investment as well as the bank's interest rate and funding ratio decisions. Consortium structures between bank and firm are formalized into five modes based on industry practice, namely, the integrated consortium, pure shareholder funding, bank as leader, full coordination, and bank as follower. The optimality and equilibrium of each of the five modes are analytically derived, and their existence and uniqueness are demonstrated. Valuable economic insights are obtained through both modeling analysis and numerical experiments, with the main findings including the following: (i) a lack of bank financing leads to insufficient capacity investment and poor consortium performance; (ii) interest rate and funding ratio play important but different roles in the bank's risk management; (iii) the bank's proactivity in leading and coordinating the consortium is critical for the two parties’ overall performance; and (iv) if the bank is the follower, the firm's capacity decision is irrelevant to the bank's loan contract, and the consortium cannot be coordinated to the first‐best level of performance.