2 papers
cond-mat.soft2003
Cooperativity in a trading model with memory and production
R. Donangelo, K. Sneppen
We consider in a market model the cooperative emergence of value due to a positive feedback between perception of needs and demand. Here we consider also a negative feedback from p…
cond-mat.stat-mech2003
Scaling in Fracture and Refreezing of Sea Ice
R. Korsnes, S. R. Souza, R. Donangelo +2
Sea ice breaks up and regenerates rapidly during winter conditions in the Arctic. Analyzing satellite data from the Kara Sea, we find that the average ice floe size depends on weat…