document: Four factors influencing the fair market value of out-of-print books .1 Four factors -LRB- edition , condition , dust jacket , and autograph -RRB- that are hypothesized to influence the value of books are identified and linked to basic economic principles , which are explained . A sample of fifty-six titles is qualitatively examined to test the hypothesis
doc_bio_tags: O O O O B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O