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Asymmetric mispricing and regime-dependent dynamics in index futures and options markets

Lee, Jaeram; Ryu, Doojin - In: Asian economic journal : journal of the East Asian … 30 (2016) 1, pp. 47-65

Persistent link: https://www.econbiz.de/10011525887

Are the KOSPI 200 implied volatilities useful in value-at-risk models?

Kim, Jun Sik; Ryu, Doojin - In: Emerging markets review 22 (2015), pp. 43-64

Persistent link: https://www.econbiz.de/10011304192

Vega-informed trading and options market reform

Ryu, Doojin; Ryu, Doowon; Yang, Heejin - In: Applied economics letters 27 (2020) 1, pp. 19-24

Persistent link: https://www.econbiz.de/10012205363

Modeling and predicting the market volatility index : the case of VKOSPI

Han, Heejoon; Kutan, Ali Mustafa; Ryu, Doojin - 2015

The KOSPI 200 options are one of the most actively traded derivatives in the world. This paper empirically examines (a) the statistical properties of the Korea's representative implied volatility index (VKOSPI) derived from the KOSPI 200 options and (b) macroeconomic and financial variables that...

Persistent link: https://www.econbiz.de/10010478493

Implied volatility index of KOSPI200 : information contents and properties

Ryu, Doojin - In: Emerging markets finance & trade : a journal of the … 48 (2012), pp. 24-39

Persistent link: https://www.econbiz.de/10009682531

Intraday option price changes and net buying pressure

Ryu, Doojin; Yang, Heejin - In: Applied economics letters 29 (2022) 4, pp. 292-297

Persistent link: https://www.econbiz.de/10012803523

Implied pricing Kernels : an alternative approach for option valuation

Ryu, Doojin; Kang, Jangkoo; Suh, Sangwon - In: The journal of futures markets 35 (2015) 2, pp. 127-147

Persistent link: https://www.econbiz.de/10011348461

Does the world smile together? : a network analysis of global index option implied volatilities

Chen, Jing; Han, Qian; Ryu, Doojin; Tang, Jing - In: Journal of international financial markets, … 77 (2022), pp. 1-20

Persistent link: https://www.econbiz.de/10013357053

Liquidity-adjusted value-at-risk : a comprehensive extension with microstructural liquidity components

Ryu, Doojin; Webb, Robert I.; Yu, Jinyoung - In: The European journal of finance 28 (2022) 9, pp. 871-888

Persistent link: https://www.econbiz.de/10013373347

Investors' net buying pressure and implied volatility dynamics

Ryu, Doojin; Webb, Robert I.; Yang, Heejin; Yu, Jinyoung - In: Borsa Istanbul Review 22 (2022) 4, pp. 627-640

We examine the effects of limited investor attention on stock returns by using Google search volume index to measure investor attention. We also investigate whether national culture and market development have any role in this relationship. We find that the impact of investor attention on stock...

Persistent link: https://www.econbiz.de/10013334805