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E-books and audiobooks are becoming increasingly popular in the United States. Unfortunately, the supply of digital titles does not meet the demand. Library patrons must frequently wait for weeks to receive popular e-books. We examined the issue of wait time for e-book and audiobook titles using three public library patron accounts to gather data consisting of the average daily number of wait spots for each title, and days until the title was available. Based on our observations, we propose the Waiting Reduction Rate (WRR) formula to determine the average number of wait spots per title as a metric to help determine a better holds-to-copy ratio for electronic materials and reduce patron wait time. 相似文献
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While the current debate about the effects of vouchers focuses on the effects of private schools on achievement, it is also important to examine how the introduction of need-based scholarships influences change in school systems. This study uses a qualitative method to examine the influence of a privately funded scholarship program on strategic adaptations within urban public and private schools in a major metropolitan area. The study revealed that senior administrators in public and private schools rapidly adapted their strategies to contend with the new program: suburban public schools prevented scholarship students from enrolling; urban public schools increased choices for public school students; and private schools actively recruited students. However, the scholarships had little influence on the ways these administrators viewed school choice. 相似文献
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