HRD is extensively concerned with human capital investment, but only focuses on how skills and knowledge become obsolete to a limited extent. In this paper we look at the speed of obsolescence. Using data from a survey among Dutch public sector employees, we find that the yearly rate of skills obsolescence is 2.6%. Subsequent analyses show that…

A study comparing citations received by patents in given year to number received in subsequent years found that, even though influential patents remain influential, both highly and infrequently cited patents age at same rate. Distribution of patents by number of citations received is stable over time. (17 references) (EJS)

Examines the distribution of use of items in a large information store and suggests that a simple exponential model describes the process of obsolescence more precisely. Three tables, four figures, and a 17-item reference list are included. (Author/JL)

Indicates that citation data conform to the Brookes model, that a scientific journal which is used as an archive ages slowly, and that one which supports a research front ages quickly--aging being dependent not only on the material, but on the user. (Author/SW)

A study identified alternative models of short-term upgrading and updating training for employed workers in business and industry. In phase 1, a literature review provided the basis for a nine-cell matrix that conceptualized alternative models of industry-based training as a function of the skill level the training addressed and the degree of…

A project focusing on the assessment of the educational system in adapting people to technological change considered the problem of adaptation for the whole person, not simply the work role, but also the family, consumer, citizen, and other roles for which educational activity is potentially instrumental. There were two major objectives:…