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Contract size changes in the options market : effects on market efficiency and investor behaviour

Park, Seongkyu; Ryu, Doojin - In: Applied economics 53 (2021) 57, pp. 6670-6682

Persistent link: https://www.econbiz.de/10012697955

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

Changes in the options contract size and arbitrage opportunities

Song, Joonhyuk; Ryu, Doojin; Yu, Jinyoung - In: The journal of futures markets 43 (2023) 1, pp. 122-137

Persistent link: https://www.econbiz.de/10013465898

Phase-transition behavior in the emerging market : evidence from the KOSPI200 futures market

Hwang, Keunho; Kang, Jangkoo; Ryu, Doojin - In: International review of financial analysis 19 (2010) 1, pp. 35-46

Persistent link: https://www.econbiz.de/10008668729

A tale of two index futures : the intraday price discovery and volatility transmission processes between the China financial futures exchange and the Singapore exchange

Guo, Biao; Han, Qian; Liu, Maonan; Ryu, Doojin - In: Emerging markets finance & trade : a journal of the … 49 (2013), pp. 197-212

Persistent link: https://www.econbiz.de/10010258907

Market interdependence before, during, and after the 2007 US subprime crisis : evidence from index futures markets

Bagchi, Debasis; Ryu, Doojin - In: Afro-Asian Journal of Finance and Accounting : AAJFA 2 (2011) 3, pp. 230-247

Persistent link: https://www.econbiz.de/10009424965

Information effects of trade size and trade direction : evidence from the KOSPI 200 index options market

Ahn, Hee-joon; Kang, Jangkoo; Ryu, Doojin - In: Asia-Pacific journal of financial studies 39 (2010) 3, pp. 301-339

Persistent link: https://www.econbiz.de/10009230522

Regime-dependent relationships between the implied volatility index and stock market index

Lee, Jaeram; Ryu, Doojin - In: Emerging markets finance & trade : a journal of the … 50 (2014) 5, pp. 5-17

Persistent link: https://www.econbiz.de/10010485198

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

Common deviation and regime-dependent dynamics in the index derivatives markets

Lee, Jaeram; Kang, Jangkoo; Ryu, Doojin - In: Pacific-Basin finance journal 33 (2015), pp. 1-22

Persistent link: https://www.econbiz.de/10011474037