We present a study of a one-dimensional granular gas of point-like particles not subject to gravity between two walls at granular-temperatures T− and T+, with T−T+ and submit a physical picture of the mechanism that triggers or inhibits cluster formation. It is known that, depending on the...

We discuss various aspects of the statistical formulation of the theory of random graphs, with emphasis on results obtained in a series of our recent publications.

Long-term fixed income market securities present a strong positive correlation in daily returns. By using a metrical approach and considering “modified” time series, I show how it is possible to show a more complex structure which depends strictly on the maturity date.

This paper investigates experimentally a market inspired by two separate strands of economic literature. The first strand is that of herd behaviour in non-market situations and the second that of the aggregation of private information in markets. The first suggests that socially undesirable herd...