document: Four factors influencing the fair market value of out-of print books . 2 Fot pt .1 see ibid. , p.71-8 -LRB- 2002 -RRB- . Data from the fifty-six titles examined qualitatively in the Patterson study are examined quantitatively . In addition to the four factors of edition , condition , dust jacket , and autograph that were hypothesized to influence the value of a book , four other factors for which information was available in the data were examined
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