Another aspect that affects marketability is the supply and demand for the item in the community or region. In some markets, the used goods market is so flooded with used stereos and car stereos, for example, that pawnshops will only accept the higher-quality brand names. Most contemporary Western law on the subject is derived from the Roman jurisprudence. As the empire spread its culture, pawnbroking went with it. University of Chicago Press. p. 66 and 70–72. ISBN 9780226905693. Retrieved July 11, 2013. ^ «Pawn Shops for the (Formerly) Rich». Wall Street Journal.