How much is a dollar difference?
A lot more than a dollar, according to research that concluded that Americans pay an average $33 more on auto loans, after analyzing a data set of 35m such loans.
People perceive the difference between prices that end in 9 and one number higher that ends in 0 as being more different that just one dollar. This is especially true with numbers ending in 99 and 00.
*An Empirical Bargaining Model with Left-Digit Bias: A Study on Auto Loan Monthly Payments. Zhenling Jiang