— In gênerai, most pièces ofequipment tend to become less efficient productively as their âge increases, until they reach a point where it is no longer deemed profitable to use them. However, the obsolescence of a machine is usually Hmited to a particular production process. This paper is concerned with productive obsolescence of machines^ which is defined as process discontinuities. These usua...

The concept that obsolescence or being "out of date" makes a test or procedure invalid ("inaccurate," "inappropriate," "not useful," "creating wrong interpretations," etc.) has been widely accepted in psychology and neuropsychology. Such obsolescence, produced by publishing a new version of a test, has produced an extensive nullification of research effort (probably 10,000 Wechsler studies). Th...

Do intellectual property rights influence multinationals’ manufacturing location decisions? My theoretical model indicates that countries with strong patent laws attract multinational activity, but only in sectors with relatively long product life cycles. By contrast, firms with short life-cycle technologies are insensitive, because offshore imitation is less likely to succeed before obsolescen...

Little attention has been paid to why offenses become obsolete or obsolescent. In the context of attempts to reduce crime, it is necessary to consider reasons for past successes. This paper presents a preliminary classification of reasons for the obsolescence (legal abolition, court action, action by police and customs officials, economic and social change, and population density) of 24 offense...

Creative destruction due to new technologies causes both long-run growth and short-run business fluctuations. The creative part of new technologies pushes the economy on a higher productivity level while the destructive part implies partial obsolescence of old production units. Obsolescence due to each new technology induces an adjustment period during which growth rates are initially high but ...

This study examines how IT professionals cope with the threat of professional obsolescence. We adopt the threat rigidity model to explain the relationship between threat of professional obsolescence and occupational mobility. In addition, we argue that professional commitment moderates the relationship between the consequent cognitive coping mechanisms of threat and occupational mobility. We co...

Predicting the obsolescence risk of components is an important challenge in system life-cycle management to improve its durability. The degree measures occurrence risk. Thus, it expresses probability that entity will become obsolete within a given time horizon. Some mathematical techniques have already been proposed deal with this problem. Recent studies also shown machine learning methods can ...

1 This paper reports on an exploratory analysis of the behaviour of citations, i.e., pattern of obsolescence, for management science papers over a fourteen year period. It addresses three questions: i) can collections of papers from the same journal all be modelled using the same obsolescence function? ii) Can we identify specific patterns of behaviour such as " sleeping beauties " or " shootin...