We provide a characterization of virtual Bayesian implementation in pure strategies for environments satisfying no-total-indifference. A social choice function in such environments is virtually Bayesian implementable if and only if it satisfies incentive compatibility and a condition we term virtual monotonicity. The latter is weaker than Bayesian monotonicity known to be necessary for Bayesian...

In this paper, we study a mechanism design problem for a strategic variant of the generalized assignment problem (GAP) in a both payment-free and priorfree environment. In GAP, a set of items has to be optimally assigned to a set of bins without exceeding the capacity of any singular bin. In the strategic variant of the problem we study, bins are held by strategic agents, and each agent may hid...

We assess the strength of the different conditions identified in the literature of robust mechanism design. We focus on three conditions: ex post incentive compatibility, robust monotonicity, and robust measurability. Ex post incentive compatibility has been shown to be necessary for any concept of robust implementation, while robust monotonicity and robust measurability have been shown to be n...

There is a perceived dichotomy between evolutionary explanations for behaviour and social or cultural ones. In this essay, I attempt to dissolve this dichotomy by pointing out that organisms are susceptible to social or cultural influence because they have evolved mechanisms that make them so. I review two classes of evolutionary explanation for cultural variation, ‘evoked’ and ‘transmitted’ cu...

INTRODUCTION OPAL (IST-2000-28295) is an EC funded project that has recently started at Napier University. It offers an opportunity to explore links between social computing and social capital. The objective is to build and evaluate a computer application that may improve the quality of online partnerships.by allowing new candidates to acquire an extensive understanding of a range of potential ...

This paper extends Lee and Sabourian [14] and examines repeated implementation of a social choice function in a general incomplete information environment where agents are in…nitely-lived and their preferences are determined stochastically in each period. Our main result establishes how any e¢ cient social choice function can be repeatedly implemented in Bayesian Nash equilibrium. Neither incen...

robo-IQ The complexity of the software-based artificial intelligence related to an adequate performance of an uncertain or multiple-choice task. robot An automat with programmed behavior designed for the purposes of substituting for certain human activity or to satisfy a person's physical, psychological, or social needs. robotic psychology A study of compatibility between people and artificial ...

We use Hotelling’s linear city model to study asymmetric competition between open source and proprietary software, where only one party the proprietary software producer aims at maximizing the profit. We focus on the different compatibility choices of the proprietary software, which lead to different network externality, and thus result in different profit for proprietary software producers. It...

The quality of a social relationship represents the history of past social interactions between two individuals, from which the nature and outcome of future interactions can be predicted. Current theory predicts that relationship quality comprises three separate components, its value, compatibility and security. This study is the first to investigate the components of relationship quality in a ...