Two models of library circulation, the Markov model and the mixed Poisson Model, are applied to circulation statistics from the University of Saskatchewan. Goodness-of-fit tests indicate that neither model fits the data; in both cases, the set of noncirculating items is larger than that predicted by the model. (Author/LRW)

The purpose of this monograph is to present a theoretical framework useful for measuring structural unemployment. Developed on the basis of a literature review, this framework was applied to Canadian data. The approach which explains structural unemployment in terms of the causes of labor displacement is inadequate because it ignores impediments…