A transaction driven model is hopelessly market inefficient resulting in uncompetitive market outcomes and sub optimal consumption, production, savings and investment decisions economy wide. We can only have a competitive market place for retail financial services by removing transaction remuneration and adding statutory best interest standards.
In a competitive market the buyer’s demand curve and the supplier’s supply curve should intersect. The demand and supply curve should hold all the relevant information about a buyer’s and supplier’s preferences. Where the two intersect is determined by the price.