49 citations · 116 across the 11 of their papers we have counts for
11 papers
Non-universal scaling and dynamical feedback in generalized models of financial markets
Dafang Zheng, G. J. Rodgers, P. M. Hui +1
We study self-organized models for information transmission and herd behavior in financial markets. Existing models are generalized to take into account the effect of size-dependen…
Percolation and depinning transitions in cut-and-paste models of adaptation
R. D'Hulst, G. J. Rodgers
We show that a cut-and-paste model to mimic a trial-and-error process of adaptation displays two pairs of percolation and depinning transitions, one for persistence and the other f…
Efficiency and persistence in models of adaptation
R. D'Hulst, G. J. Rodgers
A cut-and-paste model which mimics a trial-and-error process of adaptation is introduced and solved. The model, which can be thought of as a diffusion process with memory, is chara…
Bid distributions of competing agents in simple models of auctions
R. D'Hulst, G. J. Rodgers
Models of auctions or tendering processes are introduced. In every round of bidding the players select their bid from a probability distribution and whenever a bid is unsuccessful,…
Transition from coherence to bistability in a model of financial markets
R. D'Hulst, G. J. Rodgers
We present a model describing the competition between information transmission and decision making in financial markets. The solution of this simple model is recalled, and possible…
Models for the size distribution of businesses in a price driven market
R. D'Hulst, G. J. Rodgers
A microscopic model of aggregation and fragmentation is introduced to investigate the size distribution of businesses. In the model, businesses are constrained to comply with the m…