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題名 Modeling Housing Price Dynamics and Their Impact on the Cost of No-Negative-Equity- Guarantees for Equity Releasing Products
作者 楊曉文
Yang, Sharon S.
黃志偉
Huang, Jr-Wei
張傳章
Chang, Chuang-Chang
貢獻者 金融系
日期 2020-07
上傳時間 21-一月-2021 09:35:27 (UTC+8)
摘要 We investigate model risk in pricing no-negative-equity guarantees (NNEGs) with the aim of identifying the housing risks involved in equity-release products. To analyze the regional and local effect in the house price modeling, we evaluate different models using the house price index (HPI) based on the cities of London, Manchester and Coventry and the UK nationwide HPI respectively. The ARMA-GARCH jump model that can capture the characteristics of jump persistence, autocorrelation and volatility clustering are proposed according to the model fittings. To investigate the model risk on the cost of NNEGs, we then derive the risk-neutral valuation framework using the conditional Esscher transform technique (Bühlmann et al. 1996). Our numerical analyses reveal that the housing model risk affects the costs of NNEGs significantly. In addition, the cost of NNEGs is significantly different for different cities due to localized effect. Therefore, the basis risk is large enough to matter when pricing NNEGs.
關聯 Journal of Real Estate Finance and Economics
資料類型 article
dc.contributor 金融系
dc.creator (作者) 楊曉文
dc.creator (作者) Yang, Sharon S.
dc.creator (作者) 黃志偉
dc.creator (作者) Huang, Jr-Wei
dc.creator (作者) 張傳章
dc.creator (作者) Chang, Chuang-Chang
dc.date (日期) 2020-07
dc.date.accessioned 21-一月-2021 09:35:27 (UTC+8)-
dc.date.available 21-一月-2021 09:35:27 (UTC+8)-
dc.date.issued (上傳時間) 21-一月-2021 09:35:27 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/133640-
dc.description.abstract (摘要) We investigate model risk in pricing no-negative-equity guarantees (NNEGs) with the aim of identifying the housing risks involved in equity-release products. To analyze the regional and local effect in the house price modeling, we evaluate different models using the house price index (HPI) based on the cities of London, Manchester and Coventry and the UK nationwide HPI respectively. The ARMA-GARCH jump model that can capture the characteristics of jump persistence, autocorrelation and volatility clustering are proposed according to the model fittings. To investigate the model risk on the cost of NNEGs, we then derive the risk-neutral valuation framework using the conditional Esscher transform technique (Bühlmann et al. 1996). Our numerical analyses reveal that the housing model risk affects the costs of NNEGs significantly. In addition, the cost of NNEGs is significantly different for different cities due to localized effect. Therefore, the basis risk is large enough to matter when pricing NNEGs.
dc.format.extent 1037880 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) Journal of Real Estate Finance and Economics
dc.title (題名) Modeling Housing Price Dynamics and Their Impact on the Cost of No-Negative-Equity- Guarantees for Equity Releasing Products
dc.type (資料類型) article