Abstract. What is the status of rational choice theory in contemporary European political science? Compared with a quarter-century ago, the rational choice approach is still far from being the paradigm of work in the discipline, but looking at both anecdotal evidence and information derived from...

The paper discusses opportunities to utilize the series of micro-blogs as provided by the Twitter in observation of opinion dynamics. The spontaneity of tweets is more, as the service is attached more to the mobile communications. The extraction of information in the series of tweets is...

Most important results in Social Choice Theory concern impossibility theorems. They claim that no function, as complex as it might be, can satisfy simultaneously a restricted number of fair properties describing a democratic system. However, adopting new voting ideas can push back those limits....

The official results analysis of the Congolese presidential elections in 2011 aims at studying behavior displayed by voters towards the selected mode of poll. This reveals that most of them carry out a strategic vote because feeling, in an intuitive way, weaknesses of a single member voting...

The purpose of this paper is to have in a simple and detailed way the significant results in theory of social choice and to study the resource sharing (goods or responsibilities) between petitioning agents in a proof of election. While analyzing social choice functions more in sight, we present...

Public Goods Provision problem is studied using a new modeling tool which enables us to find various equilibria of the game, which are robust to any functional form specification.

We study students placement in Egyptian colleges under the current demand/supply placement mechanism implemented in Egypt (e-mechanism). We show that the e-mechanism is not Pareto efficient nor strategy proof and, moreover, it can not be improved to accommodate Pareto efficiency nor strategy...

This paper studies a generalization of the well known house allocation problem in which agents may own fractions of different houses summing to an arbitrary quantity, but have use for only the equivalent of one unit of a house. It departs from the classical model by assuming that arbitrary...

We apply a fallback model of coalition formation to decisions of the U.S. Supreme Court, focusing on the seven natural courts, which had the same members for at least two terms, between 1969 and 2009. The predictions of majority coalitions on each of the courts are generally bourn out by the 5-4...

In this paper, we study the long-played, yet until now unmodeled, college admissions game over early admissions plans using a many-to-one matching framework. We characterize the equilibrium strategies of each college involving its early quota out of its total capacity, and the set of admissible...