With the exception of Solow (1998), most recent economists have concurred with the results of the models of Bolch et. al (1978) and Karp and Perloff (1992).
Karp and Perloff (1992) also develop an economic model of the DDS. While they present both benefits and drawbacks of such a scheme, overall they conclude that young artists (and dealers) may be harmed by a resale royalty because buyers will reduce their willingness to pay for a work of art, if they know that they must pay a royalty on resale.