activity
20022005
most citedHerd Behaviors in the Stock and Foreign Exchange Markets

25 citations · 40 across the 17 of their papers we have counts for

collaborators

17 papers

physics.soc-ph2005

Dynamical Structures of High-Frequency Financial Data

Kyungsik Kim, Seong-Min Yoon, Soo Yong Kim +2

We study the dynamical behavior of high-frequency data from the Korean Stock Price Index (KOSPI) using the movement of returns in Korean financial markets. The dynamical behavior f…

physics.soc-ph2005

Dynamical Stochastic Processes of Returns in Financial Markets

Gyuchang Lim, Soo Yong Kim, Junyuan Zhou +2

We study the evolution of probability distribution functions of returns, from the tick data of the Korean treasury bond (KTB) futures and the S$&$P 500 stock index, which can be de…

physics.soc-ph2005

Financial Networks in the Korean Stock Exchange Market

Seong-Min Yoon, Kyungsik Kim

We investigate the financial network in the Korean stock exchange (KSE) market, using both numerical simulations and scaling arguments. We estimate the cross-correlation on the sto…

physics.soc-ph2005★ 1 cited

Dynamical Minority Games in Futures Exchange Markets

Seong-Min Yoon, Kyungsik Kim

We introduce the minority game theory for two kinds of the Korean treasury bond (KTB) in Korean futures exchange markets. Since we discuss numerically the standard deviation and th…

cond-mat.other2004

Power Law Distributions for Stock Prices in Financial Markets

Kyungsik Kim, S. -M. Yoon, K. H. Chang

We study the rank distribution, the cumulative probability, and the probability density of returns of stock prices of listed firms traded in four stock markets. We find that the ra…

cond-mat.other2004

Dynamical Volatilities for Yen-Dollar Exchange Rates

Kyungsik Kim, Seong-Min Yoon, C. Christopher Lee +1

We study the continuous time random walk theory from financial tick data of the yen-dollar exchange rate transacted at the Japanese financial market. The dynamical behavior of retu…