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Stock split, unseasoned equity offering, and firm value : evidence from the Korean stock market
Chung, Chune Young; Ju, Kangjin; Ryu, Doojin - In: Investment management and financial innovations 13 (2016) 3, pp. 105-109
Persistent link: https://www.econbiz.de/10011666627
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Insurance-adjusted valuation, decision making, and capital return
Lee, Hangsuck; Ryu, Doojin; Son, Jihoon - In: International review of financial analysis 84 (2022), pp. 1-16
Persistent link: https://www.econbiz.de/10013472741
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Information in mispricing factors for future investment opportunities
Kang, Hankil; Ryu, Doojin - In: The North American journal of economics and finance : a … 47 (2019), pp. 657-668
Persistent link: https://www.econbiz.de/10012120149
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Effects of the US stock market return and volatility on the VKOSPI
Han, Heejoon; Kutan, Ali Mustafa; Ryu, Doojin - 2015
The KOSPI (Korea Composite Stock Price Index) 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) the...
Persistent link: https://www.econbiz.de/10011376746
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Firm-specific investor sentiment and the stock market response to earnings news
Seok, Sang Ik; Cho, Hoon; Ryu, Doojin - In: The North American journal of economics and finance : a … 48 (2019), pp. 221-240
Persistent link: https://www.econbiz.de/10012120234
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Firm-specific investor sentiment and daily stock returns
Seok, Sang Ik; Cho, Hoon; Ryu, Doojin - In: The North American journal of economics and finance : a … 50 (2019), pp. 1-19
Persistent link: https://www.econbiz.de/10012204504
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The impacts of macroeconomic news announcements on intraday implied volatility
Lee, Jieun; Ryu, Doojin - 2019
Persistent link: https://www.econbiz.de/10012170922
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Investor sentiment, trading behavior and stock returns
Ryu, Doojin; Kim, Hyeyoen; Yang, Heejin - In: Applied economics letters 24 (2017) 10/12, pp. 826-830
Persistent link: https://www.econbiz.de/10011714297
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Macroeconomic shocks and stock market returns : the case of Korea
Yang, Eunsun; Kim, Sŏng-hyŏn; Kim, Maria H.; Ryu, Doojin - In: Applied economics 50 (2018) 7, pp. 757-773
Persistent link: https://www.econbiz.de/10011847162
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Stock returns and implied volatility : a new VAR approach
Lee, Bong-soo; Ryu, Doojin - 2012
This study re-examines the return-volatility relationship and dynamics under a new VAR framework. By analyzing two model-free implied volatility indices - VIX (the U.S.) and VKOSPI (Korea) - and their corresponding stock market indices, we found an asymmetric volatility phenomenon in both...
Persistent link: https://www.econbiz.de/10009628165