It is shown that Trueswell's empirical 80/20 rule arises from type of stochastic model for library loans presented by Burrell and Cane. Particular attention is paid to previously suggested uses of rule in identifying "core collection" for library noting that length of time period is of crucial importance. (20 references) (EJS)

Frequency-of-circulation distributions from 16 United Kingdom libraries participating in initial period of operation of the Public Lending Right are discussed. Differences between the libraries are highlighted, and, for each, the adequacy of various refinements of the simplest model (geometric distribution, negative binomial distribution, or mixed…

A study conducted at the Western Australian Institute of Technology (W.A.I.T.) investigated the declining use of an external library collection consisting of 12,000 volumes and 1,600 photocopies of articles from journals and monographs. The problem was approached along several avenues: (1) a survey was made of study guides to ascertain what…

Develops stochastic model of library borrowing using Negative Binomial distribution applied to circulation data obtained from Huddersfield Public Library. Evidence concerning process of popularity decay is presented and method is given by which relegation tests can be constructed to maintain optimum turnover. Eight references and statistical…

Utilizing 11 years of University of Saskatchewan circulation transactions, it is shown that P. M. Morse's Markov model of book use fits approximately 99 percent of data for whole collection and for three subject areas; contrary to his assumptions, one of the model's parameters is time dependent. Thirteen references are included. (EJS)

Data collected from an extensive review of 300 publications dealing with library cost studies are presented in 63 graphs. This probably includes most of the published data on costs of library technical processes up to the early 1970's. All data shown in this report has been corrected for general inflationary trends by converting the source data…

Library circulation records for five years in one Hawaiian elementary school were analyzed to discover patterns according to sex and grade level; identify titles, subjects, and types of books circulated; and determine circulation of Hawaiiana and books about Asia. Bibliography of 129 titles mentioned in text is included. (11 references) (EJS)

Data in this report were derived from the 1991 annual reports submitted by public libraries in Texas and reflect each library's local fiscal year. The report begins with general information about the Texas State library system, including addresses of agencies and names of administrative personnel. A directory of public libraries and branches is…

The purpose of this research was to look at the currency of the collection of a small public library and to determine the relationship between the amount of usage of the collection and the currency of publications in the collection. A 10% systematic sample was taken of the circulating nonfiction adult shelf list of the Franklin Public Library…

Describes a circulation model for academic research libraries which uses the mixed Poisson model, incorporating ageing of library materials, to predict future use of monographs and to suggest weeding procedures based on frequency of circulation. Longitudinal studies are examined and statistical details are appended. (Author/LRW)

This report on a study of the acquisition policies and procedures of the Mesa College Library (Grand Junction, Colorado) begins by discussing the techniques used for data collection, including: (1) measurement of shelflist cards; (2) calculation of average imprint date, accession date, number of circulations, price, and year of latest circulation;…