The Consumption of Music and the Expression of Values: A Social Economic Explanation for the Advent of Pop Music, Wilfred Dolfsma, American Journal of Economics and Sociology'', October 1999.
tHE CoNSumptIon oF musiC aNd the ExpresSioN oF ValueS: A sOCial EconoMic EXpLanATion fOR thE adVENt oF Pop MUsic, WilfreD doLfsma, amERiCan jourNal of economics ANd SOcIOLoGY'', October 1999.