Average and Outputs prices for CDs and DVDs both rose throughout 1999 to 2000 (before the start of Napster and subsequent file-sharing software), which implying: (1) supply of prerecorded music should have grown. (2) law of demand doesn’t apply to music. (3) demand for prerecorded music grew. (4) giant music companies manipulated consumers less productively. (5) market for DVDs and CDs is dynamically unstable.
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