The development of a mathematical model of the Illinois Library and Information Network (ILLINET) is described. Based on queueing network theory, the model predicts the probability of a request being satisfied, the average time from the initiation of a request to the receipt of the desired resources, the costs, and the processing loads. Using a…

A study of underemployment, written as part of the development of a management information project (MISOE) for the Division of Occupational Education of the Department of Education in Massachusetts, the work represents the beginning of an effort to bring systematic, empirically based policy analysis to bear on problems of occupational education.…

The labor market spillover effects of welfare reform were estimated by using models that pool time-series and cross-section data from the Current Population Survey on the state-year cell means of wages, employment, and other labor market outcomes for various demographic groups. The labor market outcomes in question are dependent variables that are…