167 citations · 579 across the 16 of their papers we have counts for
7 papers · 1 filter
Wealth Inequality and Planetary Boundaries in a Stylized Agent-Based Model
Thomas Valade, Michael Benzaquen, Matthieu Cristelli +2
At the intersection of rising wealth inequality and intensifying environmental pressures, we investigate a reverse causal relationship that has received comparatively little attent…
Crowd Avoidance and Diversity in Socio-Economic Systems and Recommendation
Stanislao Gualdi, Matus Medo, Yi-Cheng Zhang
Recommender systems recommend objects regardless of potential adverse effects of their overcrowding. We address this shortcoming by introducing crowd-avoiding recommendation where…
Temporal effects in the growth of networks
Matus Medo, Giulio Cimini, Stanislao Gualdi
We show that to explain the growth of the citation network by preferential attachment (PA), one has to accept that individual nodes exhibit heterogeneous fitness values that decay…
Influence, originality and similarity in directed acyclic graphs
Stanislao Gualdi, Matus Medo, Yi-Cheng Zhang
We introduce a framework for network analysis based on random walks on directed acyclic graphs where the probability of passing through a given node is the key ingredient. We illus…
Tracing the Evolution of Physics on the Backbone of Citation Networks
S. Gualdi, C. H. Yeung, Y. -C. Zhang
Many innovations are inspired by past ideas in a non-trivial way. Tracing these origins and identifying scientific branches is crucial for research inspirations. In this paper, we…
Self-organized model of cascade spreading
Stanislao Gualdi, Matus Medo, Yi-Cheng Zhang
We study simultaneous price drops of real stocks and show that for high drop thresholds they follow a power-law distribution. To reproduce these collective downturns, we propose a…
How does informational heterogeneity affect the quality of forecasts?
S. Gualdi, A. De Martino
We investigate a toy model of inductive interacting agents aiming to forecast a continuous, exogenous random variable E. Private information on E is spread heterogeneously across a…