This study examines the short-term relationship between stock market returns and implied volatility using  high frequency data . This is the first study to analyze  high frequency data on the VKOPSIa newly introduced volatility index implied by the KOSPI200 options.  KOSPI 200 optioins  are...

This article analyzes the behavior of futures prices when the exchange is regulated by price limits. With a model analogous to exchange‐rate target‐zone models, we tested for the existence of a nonlinear S‐shape relation between observed and theoretical futures prices. This phenomenon...