There is such a thing as decreasing marginal utility; earlier research claimed that the ability of money to provide happiness drops off after some threshold is

There is such a thing as decreasing marginal utility; earlier research claimed that the ability of money to provide happiness drops off after some threshold is reached. For example: https://pubmed.ncbi.nlm.nih.gov/30980059/ https://pubmed.ncbi.nlm.nih.gov/30980059/