Medium of exchange was observed as early as Oresme, Copernicus and then in 1558 by Sir Thomas Gresham, that bad money drives out good in any marketplace (Gresham's Law states "Where legal tender laws exist, bad money drives out good money"). A more precise definition is this: "A currency that is artificially overvalued by law will drive out of circulation a currency that is artificially undervalued by that law." Gresham's law is therefore a specific application of the general law of price controls. A common explanation is that people will always keep the less adultered, less clipped, sweated, less filed, less trimmed coin,
Good Girl Gone Bad Live notes of "Good Girl Gone Bad Live", Def Jam Recordings, SRP Records. Good Girl Gone Bad Live Good Girl Gone Bad Live is the first live long-form video by Barbadian singer Rihanna. It was first released on June 9, 2008 by Def Jam Recordings. The DVD and Blu-ray release features Rihanna's concert at the Manchester Arena in Manchester, United Kingdom held on December 6, 2007, as part of her Good Girl Gone Bad Tour (2007—2009) which supported singer's third studio album "Good Girl Gone Bad" (2007). Most of the concert's set list originates from "Good Girl Gone Bad", however, Rihanna