Anonymity networks like Tor enable Internet users to browse the web anonymously. This helps citizens circumvent censorship from repressive governments, journalists communicate with anonymous sources or regular users to avoid tracking online. However, adversaries can try to identify anonymous users by deploying several attacks. One of such attacks is website fingerprinting. Website fingerprintin...

WordPress offers users a wide choice of themes defining the structure, functionality, layout and presentation of a website together with its content types. These themes are shared by the WordPress community, enabling users to benefit from the skills of others. However, it is not possible to mix themes, so users often have to choose from a set of themes that only partially meet their requirement...

Sellers of almost any product or service rarely keep their prices constant through time, and frequently offer price discounts or sales. This paper investigates an explanation of sales as a way for uninformed consumers to be willing to experience the product, and learn about its fit, and where informed consumers may forget about (or change) their preferences. We investigate the role of the rate ...

Over the last 10 years, federal agencies have undergone a major transformation in the way they manage programs and internal administration, in their relations with Congress, and in their dealings with clients and citizens. Agencies now work in electronic BLOCKINenvironments BLOCKINof BLOCKINe-mail, BLOCKINelectronic BLOCKINdocuments BLOCKINand BLOCKINfilings, BLOCKINintranets, BLOCKINand the In...

This article serves as the introduction to the special issue on comparison-shopping and recommendation agents and provides a brief overview of the four papers included in the issue indicating their contributions. It also offers the guest editors’ perspectives on the future research in this field.

In this paper, we discuss collisions that are of interest to multiprocessor verification. Collisions occur when different processes access a shared resource. We investigate how the results of such collisions can be presented in test programs and suggest implementations for automatically generating such tests and predicting results of collision scenarios. Most of the ideas presented here are the...

Attached is a formal analysis of a large sample of cartel overcharges that I believe is relevant to your consideration of remedies for naked price fixing. This research suggests that differences in methods of calculating overcharges do not have much effect on variation in the size of those calculations. That is, antitrust prosecutors may be unjustified in their concerns about the difficulties o...

We provide a new model that generates persistent performance differences amongst seemingly similar enterprises. Our model provides a mechanism whereby efficient incumbent rivals can give permission for an inefficient firm to exist in the presence of efficient entrants. We demonstrate that, in a repeated game, an efficient incumbent has a unilateral incentive to establish a relational contract t...

We report an experiment designed to study whether inefficient firms are systematically driven from overcrowded markets. Our data set includes a series of 3,800 wars of attrition of a type modeled by Fudenberg and Tirole in 1986. We find that exit tends to be efficient and exit times conform surprisingly well to point predictions of the model. Moreover, subjects respond similarly to implementati...

The War of Attrition is a classical game theoretic model that was first introduced to mathematically describe certain non-violent animal behavior. The original setup considers two participating players in a one-shot game competing for a given prize by waiting. This model has later been extended to several different models allowing more than two players. One of the first of these N -player gener...