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題名 Volatility Uncertainty, Time Decay, and Option Bid-Ask Spreads in an Incomplete Market
作者 謝沛霖
Hsieh, Pei-Lin;Jarrow, Robert
貢獻者 財管系
關鍵詞 option pricing; incomplete market; bid-ask spread; implied volatility; market microstructure; maturity effect
日期 2019-04
上傳時間 2024-09-11
摘要 This paper documents the fact that in options markets, the (percentage) implied volatility bid-ask spread increases at an increasing rate as the option’s maturity date approaches. To explain this stylized fact, this paper provides a market microstructure model for the bid-ask spread in options markets. We first construct a static equilibrium model to illustrate the aforementioned phenomenon where risk averse and competitive option market makers quote bid and ask prices to minimize their inventory risk in an incomplete market with both directional and volatility risk. We extend this model to multiperiods and show that the same phenomenon occurs there as well. Two new implications are generated: a volatility level effect and a volatility variance effect. These implications are empirically tested, and the empirical results confirm the model’s validity. Finally, we document the importance of detrending the maturity effect by showing that the detrended percentage volatility spread explains future jump intensities better than the original percentage volatility spread.
關聯 Management Science, Vol.65, No.4, pp.1833-1854
資料類型 article
DOI https://doi.org/10.1287/mnsc.2017.2867
dc.contributor 財管系
dc.creator (作者) 謝沛霖
dc.creator (作者) Hsieh, Pei-Lin;Jarrow, Robert
dc.date (日期) 2019-04
dc.date.accessioned 2024-09-11-
dc.date.available 2024-09-11-
dc.date.issued (上傳時間) 2024-09-11-
dc.identifier.uri (URI) https://nccur.lib.nccu.edu.tw/handle/140.119/153756-
dc.description.abstract (摘要) This paper documents the fact that in options markets, the (percentage) implied volatility bid-ask spread increases at an increasing rate as the option’s maturity date approaches. To explain this stylized fact, this paper provides a market microstructure model for the bid-ask spread in options markets. We first construct a static equilibrium model to illustrate the aforementioned phenomenon where risk averse and competitive option market makers quote bid and ask prices to minimize their inventory risk in an incomplete market with both directional and volatility risk. We extend this model to multiperiods and show that the same phenomenon occurs there as well. Two new implications are generated: a volatility level effect and a volatility variance effect. These implications are empirically tested, and the empirical results confirm the model’s validity. Finally, we document the importance of detrending the maturity effect by showing that the detrended percentage volatility spread explains future jump intensities better than the original percentage volatility spread.
dc.format.extent 102 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Management Science, Vol.65, No.4, pp.1833-1854
dc.subject (關鍵詞) option pricing; incomplete market; bid-ask spread; implied volatility; market microstructure; maturity effect
dc.title (題名) Volatility Uncertainty, Time Decay, and Option Bid-Ask Spreads in an Incomplete Market
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1287/mnsc.2017.2867
dc.doi.uri (DOI) https://doi.org/10.1287/mnsc.2017.2867