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.
FORBES: The Droit De Suite Dilemma (And Why It's Just A Bad Idea)