Improving CAT bond pricing models via machine learning

Tobias Götze (), Marc Gürtler () and Eileen Witowski ()
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Tobias Götze: Braunschweig Institute of Technology
Marc Gürtler: Braunschweig Institute of Technology
Eileen Witowski: Braunschweig Institute of Technology

Journal of Asset Management, 2020, vol. 21, issue 5, No 4, 428-446

Abstract: Abstract Enhanced machine learning methods provide an encouraging alternative to forecast asset prices by extending or generalizing the possible model specifications compared to conventional linear regression methods. Even if enhanced methods of machine learning in the literature often lead to better forecasting quality, this is not clear for small asset classes, because in small asset classes enhanced machine learning methods may potentially over-fit the in-sample data. Against this background, we compare the forecasting performance of linear regression models and enhanced machine learning methods in the market for catastrophe (CAT) bonds. We use linear regression with variable selection, penalization methods, random forests and neural networks to forecast CAT bond premia. Among the considered models, random forests exhibit the highest forecasting performance, followed by linear regression models and neural networks.

Keywords: CAT bond; Machine learning; Linear regression; Risk premium (search for similar items in EconPapers)
JEL-codes: C45 C58 G12 G17 G22 (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (5)

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DOI: 10.1057/s41260-020-00167-0

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