Ascertaining the Inference of Bank Internal Default Probabilities Variations on Variable Rate Institutional Loan Prepayments

Andre Horovitz ()
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Andre Horovitz: School of Business, Economics and Social Sciences, University of Hamburg, 20146 Hamburg, Germany

Quarterly Journal of Finance (QJF), 2023, vol. 13, issue 02, 1-44

Abstract: This paper aims to evaluate an inference of bank internal PDs (Default Probabilities) on subsequent prepayments of variable rate institutional loans. Since variable rate loans hardly present an economic motivation for early prepayments in that they would not offer a cheaper refinancing alternative, we test the conjecture of a correlation between improvements in obligors’ creditworthiness (as reflected by negative changes in Bank Internal PDs) and subsequent loan prepayments, as obligors might be tempted to renegotiate more advantageous terms (lower credit spreads) with their lenders. The analysis is purported to serve as an early warning mechanism for banks pursuing the Basel III internal rating-based (IRB) approach for unexpected inflows of liquidity in the near future. We use Machine Learning (ML) ensemble methods to forecast potential prepayments and perform a conditional prepayment analysis to make an inference on the prepayment amounts and the prepayment timing distributions while controlling for macroeconomic and corporate idiosyncratic characteristics.

Keywords: Prepayments; institutional loans; default probabilities (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S2010139223400037

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