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Lydian Payments Journal - PYMNTS.com

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Figure 10: How APR Changes with Risk under Different Payment Scenarios<br />

Change (percentage points) in APR<br />

for a 100 point increase in credit score<br />

0.5<br />

0.0<br />

-0.5<br />

-1.0<br />

-1.5<br />

How APR Changes with Risk under Different<br />

Payment Scenarios<br />

0.32<br />

Lowest Rate First<br />

(LRF)<br />

-0.84<br />

Proportional<br />

Payment (PP)<br />

-1.07<br />

Equal Payment (EP)<br />

-1.27<br />

Highest Rate First<br />

(HRF)<br />

Note: Negative value indicates risk-based pricing.<br />

Considering penalty repricing, it was found that issuers typically did not notify consumers of the price<br />

change. (As mentioned previously, a related finding is that most borrowers did not know when they were<br />

at a penalty rate. 24 ) While legally permissible right now, this policy counters arguments that penalty<br />

repricing reduces moral hazard. Minimizing consumer knowledge certainly creates inefficiency, especially<br />

if it perpetuates moral hazard. 25<br />

Conclusion<br />

Credit cards have evolved from a product with one price to a product with several interest rates for<br />

different types of activity that can change for a number of reasons related to timing, index rates, triggering<br />

events, or simply the issuer’s choice. Credit cards also have a wide range of fees and add‐on products. Much<br />

of price <strong>com</strong>plexity in credit cards as a lending product is related to an attempt by firms to create<br />

misleading signals that cater to biases. This mix of prominent price signals in overweighted domains<br />

<strong>com</strong>bined with revenue enhancement mechanisms in underweighted domains describes an archetypical<br />

peacock market.<br />

Since this market structure is inherently inefficient, market intervention has been and continues to be<br />

appropriate. Attempts to deceive consumers and exploit biases should not be costless. Issuers need to fear<br />

some consequences for these actions other than that they will eventually be painlessly phased out. For<br />

24 Frank, “Priceless or Just Expensive?”<br />

25 If a borrower knew they were at a penalty rate and further knew that certain behavior (such as paying on time for<br />

six months) would cause their account to return to the regular rate, this would encourage responsible behavior.<br />

© 2009. Copying, reprinting, or distributing this article is forbidden by anyone other than the publisher or author. 39

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