A communication game on electoral platforms

This paper proposes a game to study strategic communication on platforms by parties. Parties’ platforms have been chosen in a multidimensional policy space, but are imperfectly known by voters. Parties strategically decide the emphasis they put on the various issues, and thus the precision of the information they convey to voters on their position on each issue. The questions we address are the following: what are the equilibria of this communication game? How many issues will they address? Will parties talk about the same issues or not? Will they talk on issues that they "own" or not?

Learning and Communication in Sender-Receiver Games: An Econometric Investigation

Learning and communication play important roles in coordinating activities. Game theory and experiments have made a significant contribution to our understanding and appreciation for the issues surrounding learning and communication in coordination. However, the results of past experimental studies provide conflicting results about the performance of learning models. Moreover, the interaction between learning and communication has not been systematically investigated. Our long run objective is to overcome the conflicting results and to provide a better understanding of the interaction. To this end, we econometrically investigate a sender-receiver game environment where communication is necessary for coordination and learning is essential for communication.

Game-theoretic Resource Allocation Methods for Device-to-Device (D2D) Communication

Device-to-device (D2D) communication underlaying cellular networks allows mobile devices such as smartphones and tablets to use the licensed spectrum allocated to cellular services for direct peer-to-peer transmission. D2D communication can use either one-hop transmission (i.e., in D2D direct communication) or multi-hop cluster-based transmission (i.e., in D2D local area networks). The D2D devices can compete or cooperate with each other to reuse the radio resources in D2D networks. Therefore, resource allocation and access for D2D communication can be treated as games. The theories behind these games provide a variety of mathematical tools to effectively model and analyze the individual or group behaviors of D2D users. In addition, game models can provide distributed solutions to the resource allocation problems for D2D communication. The aim of this article is to demonstrate the applications of game-theoretic models to study the radio resource allocation issues in D2D communication. The article also outlines several key open research directions.Comment: Accepted. IEEE Wireless Comms Mag. 201

The price of re-establishing perfect, almost perfect or public monitoring in games with arbitrary monitoring

This paper establishes a connection between the notion of observation (or monitoring) structure in game theory and the one of communication channels in Shannon theory. One of the objectives is to know under which conditions an arbitrary monitoring structure can be transformed into a more pertinent monitoring structure. To this end, a mediator is added to the game. The objective of the mediator is to choose a signalling scheme that allows the players to have perfect, almost perfect or public monitoring and all of this, at a minimum cost in terms of signalling. Graph coloring, source coding, and channel coding are exploited to deal with these issues. A wireless power control game is used to illustrate these notions but the applicability of the provided results and, more importantly, the framework of transforming monitoring structures go much beyond this example.Comment: Proc. of the 4th ACM International Workshop on Game Theory in Communication Networks, 201

Multi-Layer Cyber-Physical Security and Resilience for Smart Grid

The smart grid is a large-scale complex system that integrates communication technologies with the physical layer operation of the energy systems. Security and resilience mechanisms by design are important to provide guarantee operations for the system. This chapter provides a layered perspective of the smart grid security and discusses game and decision theory as a tool to model the interactions among system components and the interaction between attackers and the system. We discuss game-theoretic applications and challenges in the design of cross-layer robust and resilient controller, secure network routing protocol at the data communication and networking layers, and the challenges of the information security at the management layer of the grid. The chapter will discuss the future directions of using game-theoretic tools in addressing multi-layer security issues in the smart grid.Comment: 16 page

A communication game on electoral platforms

This paper proposes a game to study strategic communication on platforms by parties. Parties’ platforms have been chosen in a multidimensional policy space, but are imperfectly known by voters. Parties strategically decide the emphasis they put on the various issues, and thus the precision of the information they convey to voters on their position on each issue. The questions we address are the following: what are the equilibria of this communication game? How many issues will they address? Will parties talk about the same issues or not? Will they talk on issues that they "own" or not

Development of a Coding Instrument to Assess the Quality and Content of Anti-Tobacco Video Games

Previous research has shown the use of electronic video games as an effective method for increasing content knowledge about the risks of drugs and alcohol use for adolescents. Although best practice suggests that theory, health communication strategies, and game appeal are important characteristics for developing games, no instruments are currently available to examine the quality and content of tobacco prevention and cessation electronic games. This study presents the systematic development of a coding instrument to measure the quality, use of theory, and health communication strategies of tobacco cessation and prevention electronic games. Using previous research and expert review, a content analysis coding instrument measuring 67 characteristics was developed with three overarching categories: type and quality of games, theory and approach, and type and format of messages. Two trained coders applied the instrument to 88 games on four platforms (personal computer, Nintendo DS, iPhone, and Android phone) to field test the instrument. Cohen's kappa for each item ranged from 0.66 to 1.00, with an average kappa value of 0.97. Future research can adapt this coding instrument to games addressing other health issues. In addition, the instrument questions can serve as a useful guide for evidence-based game development.Food and Drug Administration (FDA) Center for Tobacco ProductsNational Cancer Institute (NCI) Office of Communication and EducationCommunication Studie

Using Video Games to Develop Communication Skills in Higher Education

Employers are increasingly concerned that university graduates possess the transferable skills – sometimes termed ‘graduate attributes’ (Barrie, 2006) – necessary to succeed in the workplace. Prominent among these skills are those which relate to communication; however, not all higher education courses are designed explicitly to teach or develop such skills. Many commercial video games, on the other hand, require players to communicate in order to succeed, particularly in an era of increasingly ubiquitous online multiplayer games. The pilot project described here sought to explore the use of commercial video games to teach communication skills in a formal higher education environment. The work could inform the development of self-directed game-based activities that students may undertake without intervention from already over-committed (and costly) academic staff. As such, the study aimed to begin to address the problem of how desirable ‘soft skills’ such as communication competence may be developed in higher education. The pilot was conducted over eight weeks, with a small group of undergraduate student volunteers asked to complete psychometric tests relating to communication skill in weeks one and eight. In the intervening period, students were asked to play selected commercial video games, for two hours per week. Each week, students were given loosely-defined tasks to carry out using the specified game. Games that rely upon some form of communication were selected with input from a panel of academic and industry experts and included Minecraft, Gone Home, Portal 2 and Never Alone. In Minecraft, for example, pairs of participants were asked to perform a number of loosely-defined collaborative tasks, such as building a home for both players. Portal 2, on the other hand, required participants to work together in order to solve a series of puzzles. All such in-game activities were thought to require some form of communication. Lab activities closed with a short group discussion, and participants were encouraged to blog about their experiences. It is possible that group discussions also had an effect on participants’ communication competence, and such discussions may form part of any future interventions. Few participants opted to blog about the project, so the impact of this activity on the communication skill measured here is considered to be slight. The Self-Perceived Communication Competence Scale (McCroskey & McCroskey, 1988) and the Communicative Adaptability Scale (Duran, 1992) were used to measure self-reported communication skill before and after volunteers had played the selected games. In addition, the Rosenberg Self Esteem Scale (Rosenberg, 1979), General Self-Efficacy Scale (Schwarzer & Jerusalem, 1995) and Big Five Inventory (John et al., 2008) were administered to gather data potentially related to communication skill. For each measure, the change in the associated test score was recorded, for each participant, over the course of the eight-week study. Mean values of both communication measures were observed to increase between testing sessions. 95% confidence intervals for change in mean communication scores did not cross zero, suggesting this was not a chance occurrence. While the lack of a control group means it is difficult to prove that the games played were the cause of gains in communication skill, this finding is consistent with such a hypothesis, and motivates a further, hypothesis-testing, controlled study. In addition to the calculated confidence intervals, the correlation coefficients between each measure were calculated using Pearson's r. Correlation between the two communication measures was moderately strong (r = 0.76), which, as they are intended to measure aspects of the same attribute, indicates good validity. The pilot proved instructive and highlighted a number of challenges and concerns that must be addressed in any subsequent study. In the absence of a control group, it is unclear how much of the effect is a result of the intervention. However, the pilot did provide some indication of the measures that should be employed in a subsequent study. A more robust approach to student recruitment must be taken if any study that builds on this work is to attract and maintain a large cohort of volunteers, and meaningful statistical analyses are to be performed on the data. Logistical concerns must also be addressed: a greater number of participants would place greater demands on limited hardware and software available for gaming sessions. Technical issues encountered during the pilot were infrequent and relatively slight. Researchers were familiar with the chosen platforms (PC and PlayStation 3) and most of the games. Where there were unknown factors, such as the restrictions imposed by the university’s IT infrastructure, extensive testing of configurations was undertaken in advance. Other issues related primarily to participants’ attitudes towards the selected games. For example, a small proportion of our volunteers were somewhat dismissive of Gone Home, as the experience did not align with their own personal definition of what constitutes a video game. While these players rushed to complete the game without pause for reflection, the majority of players did, however, appear to become engrossed in the game’s elusive narrative. This situation is illustrative of one of the problems that can arise when using a prescribed game within a formal learning environment: not every game is to every player’s taste. Squire, for example, has documented similar problems (2011, p.117), where some proportion of the class in question isn’t interested in playing video games, or fails to see the educational value in doing so. The limited data described here, however, do appear to warrant further investigation. These data, coupled with informal feedback from student participants, suggest that commercial video games may have a role to play in developing communication skills in our graduates. Based on a small sample size, the pilot’s highly promising results have motivated a further, hypothesis-testing, controlled study which is currently underway