Asphalt roads are gradually deteriorating over time and need road mending to remain in a good state. Inspections are performed to obtain information about the current state of the road; when the damage achieves the established standards, the road is repaired through a maintenance action that is...

This paper discusses several strategies for the maintenance of light standards, where each light standard consists of n independent and identical lamps screwed on a chandelier. The lamps are subject to stochastic failures, and must be correctively replaced if the number of failed lamps reaches a...

We analyze the impact of obsolescence of economic inventions by incorporating maintenance costsin the endogenous growth model of expanding product varieties. This contrasts with the existingliterature, which ignores maintenance costs and uses the model of quality improvements todescribe...

Eine Big-Data-Analyse von Patentanmeldungen zeigt die Entstehungsorte deutscher Digitalisierungstechnologie. Leistungsstarke Cluster sind die süddeutschen Großstädte. Allein München bringt hierzulande jedes vierte Digitalisierungspatent hervor, mehr als jeder dritte Landkreis hingegen kein...