Research Projects
Supported by HKU's High Performance Computing Facilities |
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Researcher: |
Dr Hoi-fung Chau,
Department of Physics |
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Project Title: |
Numerical Study of Econophysical Systems |
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Project Description: |
To study the dynamics and cooperative behavior in a simple-minded model of
economy with heterogeneous inductive reasoning agents using statistical
physics methods. |
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Project Duration: |
24 months |
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Project
Significance: |
To have a better understanding of the dynamics and the origin of cooperative
behavior in agent-based economics models using techniques already developed
in statistical physics. Such an understanding may provide new views on the
dynamics in the local stock market. |
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Results
Achieved: |
Currently, we are
working on a paper concerning the inequality of wealth in a simple-minded
economic model by studying the Gini index of the agents in this model. We
are trying to explain the numerical Gini index obtained by semi-analytical
methods such as the replica trick used in statistical mechanics. |
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Remarks on the
Use of High Performance Computing Cluster: |
In part of the project, we need to compute numerically the Gini index of a
population averaged over time and various initial conditions. Unfortunately,
the time to reach statistical equilibrium is just too long for a single
workstation. This translates to about 200 days of computing time in a
Digital Workstation in our department. The HPC Cluster, in contrast, offers great
speedup in our computation. The real elapsed time is essentially increased
by about 100 times. In fact, we get our preliminary results in just 2 days. |
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Email Address: |
hfchau@hkusua.hku.hk |
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