Interlibrary loan (ILL) services are used to fill the gap between academic libraries' collections and the information needs of their users. Today's trend toward the cancellation of serials "Big Deals" has increased the importance of clear information around ILL to support decision-making. In order to plan the cancellation of a journal package, academic libraries need to be able to forecast their total spendings on ILL, which requires to have an appropriate estimate of what it costs to fulfill an individual ILL request. This paper aims to help librarians answer this question by reviewing the most recent academic literature related to these costs. There are several factors that may affect the cost of an ILL service, including the cost of labour, the geographic location of the library, the use of a ILL software, and membership to a library consortium. We find that there is a wide range of estimates for ILL cost, from $3.75 (USD) to $100.00 (USD). However, Jackson's (2004) figure of $17.50 (USD) per transaction remains the guideline for most researchers and librarians.

中文翻译：

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馆际互借申请的费用是多少？文献综述

馆际互借 (ILL) 服务用于填补学术图书馆馆藏与其用户信息需求之间的差距。今天取消连续剧“大交易”的趋势增加了关于 ILL 的清晰信息对支持决策的重要性。为了计划取消期刊包，学术图书馆需要能够预测他们在 ILL 上的总支出，这需要对满足单个 ILL 请求的成本进行适当的估计。本文旨在通过回顾与这些成本相关的最新学术文献来帮助图书馆员回答这个问题。有几个因素可能会影响 ILL 服务的成本，包括劳动力成本、图书馆的地理位置、ILL 软件的使用、和图书馆联盟的成员。我们发现 ILL 成本的估计范围很广，从 3.75 美元（美元）到 100.00 美元（美元）。然而，杰克逊 (2004) 的每笔交易 17.50 美元 (USD) 的数字仍然是大多数研究人员和图书馆员的指导方针。