Analysis of a decision model in the context of equilibrium pricing and order book pricing
arXiv:1404.7356 · doi:10.1016/j.physa.2014.08.013
Abstract
An agent-based model for financial markets has to incorporate two aspects: decision making and price formation. We introduce a simple decision model and consider its implications in two different pricing schemes. First, we study its parameter dependence within a supply-demand balance setting. We find realistic behavior in a wide parameter range. Second, we embed our decision model in an order book setting. Here we observe interesting features which are not present in the equilibrium pricing scheme. In particular, we find a nontrivial behavior of the order book volumes which reminds of a trend switching phenomenon. Thus, the decision making model alone does not realistically represent the trading and the stylized facts. The order book mechanism is crucial.
References in corpus (11)
- Scaling of the distribution of price fluctuations of individual companies
- Multiplicative processes and power laws
- Expectation bubbles in a spin model of markets: Intermittency from frustration across scales
- Dynamics of price and trading volume in a spin model of stock markets with heterogeneous agents
- Microscopic Models for Long Ranged Volatility Correlations
- Emergence of long memory in stock volatility from a modified Mike-Farmer model
- Minimal Agent Based Model for Financial Markets I: Origin and Self-Organization of Stylized Facts
- Opinions, Conflicts and Consensus: Modeling Social Dynamics in a Collaborative Environment
- Minimal Agent Based Model for Financial Markets II: Statistical Properties of the Linear and Multiplicative Dynamics
- What really causes large price changes?
- Microscopic understanding of heavy-tailed return distributions in an agent-based model