We study some properties of eigenvalue spectra of financial correlation matrices. In particular, we investigate the nature of the large eigenvalue bulks which are observed empirically, and which have often been regarded as a consequence of the supposedly large amount of noise contained in...

This paper compares the performance of centralized and decentralized markets experimentally. We constrain trading exchanges to happen on an exogenously predetermined network, representing the trading relationships in markets with differing levels of connectivity. Our experimental results show...

In this survey we discuss advances in the agent-based modeling of economic and social systems. We present the state of the art in the heuristic design of agents and the connections to the results from laboratory experiments on agent behavior. We further discuss how large-scale social and...