From 2010: The longer something is thought to exist, the better it is evaluated

From 2010: Longer is better. Scott Eidelman, Jennifer Pattershall, Christian S.Crandallb. Journal of Experimental Social Psychology, Volume 46, Issue 6, November 2010, Pages 993-998. https://doi.org/10.1016/j.jesp.2010.07.008

Abstract: The longer something is thought to exist, the better it is evaluated. In Study 1, participants preferred an existing university requirement over an alternative; this pattern was more pronounced when the existing requirement was said to be in place for a longer period of time. In Study 2, participants rated acupuncture more favorably as a function of how old the practice was described. Aesthetic judgments of art (Study 3) and nature (Study 4) were also positively affected by time in existence, as were gustatory evaluations of an edible consumer good (Study 5). Features of the research designs argue against mere exposure, loss aversion, and rational inference as explanations for these findings. Instead, time in existence seems to operate as a heuristic; longer means better.