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Recently, a great deal of literature on patron-driven acquisition (PDA) has been published that addresses the implementation and results of PDA programs at academic libraries. However, despite widespread worries that PDA will lead to unbalanced collections, little attention has been paid to whether patrons' and librarians' purchasing differ significantly. This study analyzes librarians' and PDA patrons' acquisitions at an academic library by relative collecting level and by subject (that is, Library of Congress class and subclass) to determine whether concern over patrons' collecting are warranted.

There has been a flurry of interest in programs for collection development through patron-initiated requests. However, some librarians have been concerned that such methods run the risk of producing idiosyncratic collections with poor usage and poor use value. The University of Nebraska-Lincoln Libraries have operated such a program through the Interlibrary Loan Department over a five-year period. The following study assesses the relative performance of the program's interlibrary loan-acquired monographs in terms of prices paid per rates of annual circulation, relative use at the topical level, and annual rates of circulation. [ABSTRACT FROM AUTHOR]