28 citations · 66 across the 3 of their papers we have counts for
7 papers
Long-Time Fluctuations in a Dynamical Model of Stock Market Indices
Ofer Biham, Zhi-Feng Huang, Ofer Malcai +1
Financial time series typically exhibit strong fluctuations that cannot be described by a Gaussian distribution. In recent empirical studies of stock market indices it was examined…
Stochastic Multiplicative Processes for Financial Markets
Zhi-Feng Huang, Sorin Solomon
We study a stochastic multiplicative system composed of finite asynchronous elements to describe the wealth evolution in financial markets. We find that the wealth fluctuations or…
Finite market size as a source of extreme wealth inequality and market instability
Zhi-Feng Huang, Sorin Solomon
We study the finite-size effects in some scaling systems, and show that the finite number of agents N leads to a cut-off in the upper value of the Pareto law for the relative indiv…
Power, Levy, Exponential and Gaussian Regimes in Autocatalytic Financial Systems
Zhi-Feng Huang, Sorin Solomon
We study by theoretical analysis and by direct numerical simulation the dynamics of a wide class of asynchronous stochastic systems composed of many autocatalytic degrees of freedo…
Modelling High-frequency Economic Time Series
Lei-Han Tang, Zhi-Feng Huang
The minute-by-minute move of the Hang Seng Index (HSI) data over a four-year period is analysed and shown to possess similar statistical features as those of other markets. Based o…
The first 20 minutes in the Hong Kong stock market
Zhi-Feng Huang
Based on the minute-by-minute data of the Hang Seng Index in Hong Kong and the analysis of probability distribution and autocorrelations, we find that the index fluctuations for th…