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Consumer Credit ModelsPricing, Profit and Portfolios$
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Lyn C. Thomas

Print publication date: 2009

Print ISBN-13: 9780199232130

Published to Oxford Scholarship Online: May 2009

DOI: 10.1093/acprof:oso/9780199232130.001.1

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Risk-based pricing

Risk-based pricing

(p.152) 3 Risk-based pricing
Consumer Credit Models

Lyn C. Thomas

Oxford University Press

This chapter builds models to determine the ‘price’ (interest rate) a lender should charge on a loan to maximize the expected profit, taking into account both the default risk of the borrower and the relationship between response (take up) rate and the price charged. Starting with a simple two-price model, it extends the ideas to risk-based pricing, including how adverse selection and affordability of repayments can be included in the model. It investigates acceptance scoring where one determines what other non-price features should be offered as part of the loan to maximize the acceptance rate and hence the profitability of the loan. It develops a game theory model based on the Edgeworth market game, which allows for the trade-offs that lenders have between profit and market share, and that borrowers have between interest rate charged and credit limit.

Keywords:   interest rate, response function, adverse selection, affordability, game theory model, Edgeworth market game, acceptance scoring

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