> Another study from 2015 showing that credit card logos increase estimates of item value

Notably, the abstract of the 2015 study specifically points out that the 1986 study has frequently failed to replicate, and although it finds an effect, the 2015 study has n = 28. As always with psychology studies, we would do well not to assert their purported findings as facts, as with the statement "The brand effect is so strong that displaying a Visa logo near checkout literally increases consumer spend". Psychology as a field is far too unreliable to make such assertions with confidence.