58 citations · 290 across the 24 of their papers we have counts for
6 papers · 1 filter
Stylized facts in minority games with memory: a new challenge
Damien Challet, Matteo Marsili, Andrea De Martino
A finite memory is introduced in the score dynamics of Minority Games. As expected, this removes the dependence of the stationary state on the initial conditions. However, it also…
Typical properties of large random economies with linear activities
A. De Martino, M. Marsili, I. Pérez Castillo
We study the competitive equilibrium of large random economies with linear activities using methods of statistical mechanics. We focus on economies with commodities, firms,…
Statistical mechanics of the mixed majority-minority game with random external information
A. De Martino, I. Giardina, G. Mosetti
We study the asymptotic macroscopic properties of the mixed majority-minority game, modeling a population in which two types of heterogeneous adaptive agents, namely ``fundamentali…
Percolation and lack of self-averaging in a frustrated evolutionary model
Andrea De Martino, Andrea Giansanti
We present a stochastic evolutionary model obtained through a perturbation of Kauffman's maximally rugged model, which is recovered as a special case. Our main results are: (i) exi…
Critical percolation and lack of self-averaging in disordered models
Andrea De Martino, Andrea Giansanti
Lack of self-averaging originates in many disordered models from a fragmentation of the phase space where the sizes of the fragments remain sample-dependent in the thermodynamic li…
The geometrically broken object
Andrea De Martino
We introduce an analytically solvable model for a fragmented object that, despite of a low degree of randomness and of the extreme simplicity of the breaking process, displays non…