Delayed Perfect Monitoring in Repeated Games.

Delayed perfect monitoring in an in�nitely repeated discounted game is studied. A player perfectly observes any other player's action choice with a fixed, but finite delay. The observational delays between different pairs of players are heterogeneous and asymmetric. The Folk Theorem extends to this setup, although for a range of discount factors strictly below 1, the set of belief-free equilibria is reduced under certain conditions. This model applies to any situation in which there is a heterogeneous delay between information generation and the players-reaction to it

Augmented reality for pedestrian evacuation research: Promises and limitations

Publishe

The Effect of Non-lexical Verbal Signals on the Perceived Authenticity, Empathy and Understanding of a Listener

Active listening plays an important role in the relationship between clients and therapists. Here, we investigated whether variations of the confirmatory nonlexical verbal communication signal "mmh" influenced perceived authenticity, empathy and understanding of a listener. Eighty-one participants were in a conversation with an interviewer and reported about a difficult work experience. They were randomly assigned to one of three groups: The control group did not receive any verbal feedback from the interviewer; In one experimental group (1x-mmh), the interviewer uttered several monosyllabic confirmatory nonlexical verbal signals ("mmh") during the presentation; In a second experimental group (3x-mmh) the interviewer voiced several three syllable "mmh-mmh-mmh" while listening. All participants were then asked to rate the perceived authenticity, empathy and understanding of the interviewer. Participants in the 3x-mmh condition rated the interviewer to be significantly less authentic than those in the other two groups. No differences in reported empathy and understanding were found. The use of consecutive confirmatory nonlexical verbal signals ("mmh") - at least as currently implemented - may influence the perceived authenticity of a listener

Detecting and reacting to changes in reputation flows

Proceeding volume: IFIP AICT 358/2011Peer reviewe

Public Goods in Endogenous Networks

In this paper, we study a local public good game in an endogenous network with heterogeneous agents. We consider two specifications in which different networks arise. When agents differ in the cost of acquiring the public good, active agents form hierarchical complete multipartite graphs; yet, better types need not have more neighbors. When agents' benefits from the public good are heterogeneous, nested split graphs emerge in which investment need not be monotonic in type. In large societies, few agents produce a lot and networks dampen inequality for most agents under cost heterogeneity and increase it under heterogeneity in benefits

Entry Regulation in a Linear Market with Elastic Demand

This work performs a comparative welf are analysis of two types of entry regulation in a duopolistic retail market: number of licenses and minimum distance between stores. In a linear (Hotelling) market we show that a minimum distance rule is beneficial for the consumers and disadvantageous for the firms when demand is sufficiently inelastic. The distance rule that maximises social welfare is one quarter of the mark et under which firms will be located at the quartiles. Those loca tions are also optimal under regulated prices. This analysis, which is not yet considered in the literature, is motivated by a change of entry regulat ion in the drugstore market in the Spanish region of Navarre

Comparison of exit time moment spectra for extrinsic metric balls

We prove explicit upper and lower bounds for the L1-moment spectra for the Brownian motion exit time from extrinsic metric balls of submanifolds Pm in ambient Riemannian spaces Nn. We assume that P and N both have controlled radial curvatures (mean curvature and sectional curvature, respectively) as viewed from a pole in N. The bounds for the exit moment spectra are given in terms of the corresponding spectra for geodesic metric balls in suitably warped product model spaces. The bounds are sharp in the sense that equalities are obtained in characteristic cases. As a corollary we also obtain new intrinsic comparison results for the exit time spectra for metric balls in the ambient manifolds Nn themselves

Uncertainty in Knowledge Provenance

osed to address the problem about how to he validity and origin of information/knowledge on the web by rces and dependencies as oduced: Static, Dynamic, Uncertain, and Judgmental. In order to give a formal and explicit specification ncepts of KP, a static KP ontology is defined in this 1. telecommunication technologies that make owledge/information validity becomes a crucial ny des mo s and dependencies, as well as trust stru nswer include: Can this information be ts creator be trusted? What does it dep to be true? This proposed app to determine the val ncertain an

The simulation of wildland-urban interface fire evacuation: The WUI-NITY platform

Wildfires are a significant safety risk to populations adjacent to wildland areas, known as the wildland-urban interface (WUI). This paper introduces a modelling platform called WUI-NITY. The platform is built on the Unity3D game engine and simulates and visualises human behaviour and wildfire spread during an evacuation of WUI communities. The purpose of this platform is to enhance the situational awareness of responders and residents during evacuation scenarios by providing information on the dynamic evolution of the emergency. WUI-NITY represents current and predicted conditions by coupling the three key modelling layers of wildfire evacuation, namely the fire, pedestrian, and traffic movement. This allows predictions of evacuation behaviour over time. The current version of WUI-NITY demonstrates the feasibility and advantages of coupling the modelling layers. Its wildfire modelling layer is based on FARSITE, the pedestrian layer implements a dedicated pedestrian response and movement model, and the traffic layer includes a traffic evacuation model based on the Lighthill-Whitham-Richards model. The platform also includes a sub-model called PERIL that designs the spatial location of trigger buffers. The main contribution of this work is in the development of a modular and model-agnostic (i.e., not linked to a specific model) platform with consistent levels of granularity (allowing a comparable modelling resolution in the representation of each layer) in all three modelling layers. WUI-NITY is a powerful tool to protect against wildfires; it can enable education and training of communities, forensic studies of past evacuations and dynamic vulnerability assessment of ongoing emergencies