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Journal Article

The Repairman Problem Revisited

Claude Crampes and Jérôme Renault
Annals of Economics and Statistics
No. 121/122 (June 2016), pp. 7-24
Published by: GENES on behalf of ADRES
DOI: 10.15609/annaeconstat2009.121-122.7
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Page Count: 18
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The Repairman Problem Revisited
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We use a probabilistic model to show that the development of a large number of small production units facing independent risks of failure must be accompanied by an approximately proportional increase in the number of repairmen. We derive the cost function of a machine in working condition, which increases with the cost of an installed machine and with the repair cost and failure probability, and decreases with repairman efficiency. We provide a very simple proof and generalize the results of Arrow et al. (1972). We also show that it is redundant to require installers to hire the number of repairmen necessary to reach a fixed availability level for each installed machine. JEL: C61, D24, J3, O33. / KEY WORDS: Failure, Repair, Markov Chain, Hicks-Leontiev Technology.

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