In the standard minority game, each agent in the minority group receives the same payoff regardless of the size of the minority group. Of great interest for real social and biological systems are cases in which the payoffs to members of the minority group depend on the size of the minority group. This latter includes the fixed sum game. We find, remarkably, that the phase structure and general ...

This study examines the expansion of visible minority neighbourhoods in Canada’s three largest metropolitan areas. Minority neighbourhoods, defined as census tracts with over 30% of their population from a single visible minority group, increased in number from 6 to 254 between 1981 and 2001. Most of these neighbourhoods were formed through a partial replacement of nonvisible minority residents...

– The generalization of the problem of adaptive competition, known as the minority game, to the case of K possible choices for each player is addressed, and mapped onto a system of interacting perceptrons with input and output units of the type of K-states Potts-spins. An optimal solution of the minority game as well as the dynamical evolution of the adaptive strategies of the players are solve...

The minority game (MG) is a simple yet effective binarydecision model which is well suited to study the collective emerging behaviour in a population of agents with bounded and inductive rationality when they have to compete, through adaptation, for scarce resources. The original formulation of the MG was inspired by the W.B. Arthur’s El Farol Bar problem in which a fixed number of people have ...

BACKGROUND The maternal mortality rate (MMR) markedly decreased in China, but there has been a significant imbalance among different geographic regions (east, central and west regions), and the mortality in the western region remains high. This study aims to examine how much disparity in the health system and MMR between ethnic minority and non-minority counties exists in Sichuan province of we...

BACKGROUND AND PURPOSE Intravenous thrombolysis (IVT) is underutilized in ethnic minorities and women. To disentangle individual and system-based factors determining disparities in IVT use, we investigated race/sex differences in IVT utilization among hospitals serving varying proportions of minority patients. METHODS Ischemic stroke admissions were identified from the Nationwide Inpatient Sa...