Answer:
anchoring and adjustment heuristic
Step-by-step explanation:
Anchoring and adjustment heuristic is defined as the psychological way in which people asses probabilities. It states that people have a reference or anchor and the make adjustments to it in otlrder to reach an estimate.
The anchor is the price that the customer paid 10 years ago. That is $18,000. However the sticker price is $26,000.
The consumer feels this is too far away from his anchor from 10 years ago.