The Market for Lemons car. This, in turn, motivates the owners of moderately good cars not to sell, and so on. The result is that a market in which there is asymmetric information with respect to quality shows characteristics similar to those described by Gresham's Law: the bad drives out the good. (Although Gresham's principle applies more specifically to exchange rates, modified analogies can be drawn.) Akerlof considers a situation in which demand "D" for used cars depends on the cars price "p" and quality "µ" = "µ"("p") and the supply depends on price alone. Economic equilibrium is given by "S"("p") = "D"("p","µ") and
Good Girl Gone Bad beats bury her personality, and the summery reggae of her first two albums is sorely missed." Robert Christgau of MSN Music cited "Umbrella" as a "choice cut", indicating "a good song on an album that isn't worth your time or money". At the 2008 Grammy Awards ceremony, "Good Girl Gone Bad" received seven Grammy Awards nominations, including Record of the Year and Song of the Year for "Umbrella", Best Dance Recording for "Don't Stop the Music", Best R&B Performance by a Duo or Group with Vocals and Best R&B Song for "Hate That I Love You". It won the accolade