Maintenance and investment: complements or substitutes? A reappraisal

Boucekkine, R., Fabbri, G. and Gozzi, F. (2010) Maintenance and investment: complements or substitutes? A reappraisal. Journal of Economic Dynamics and Control, 34(12), pp. 2420-2439. (doi:10.1016/j.jedc.2010.06.007)

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A benchmark AK optimal growth model with maintenance expenditures and endogenous utilization of capital is considered within an explicit vintage capital framework. Scrapping is endogenous, and the model allows for a clean distinction between age and usage dependent capital depreciation and obsolescence. It is also shown that in this set-up past investment profile completely determines the size of current maintenance expenditures. Among other findings, a closed-form solution to optimal dynamics is provided taking advantage of very recent development in optimal control of infinite dimensional systems. More importantly, and in contrast to the pre-existing literature, we study investment and maintenance co-movements without any postulated ad hoc depreciation function. In particular using impulse response experiments, we find that optimal investment and maintenance do move together in the short-run in response to neutral technological shocks, which seems to be more consistent with the data.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Boucekkine, Prof Raouf
Authors: Boucekkine, R., Fabbri, G., and Gozzi, F.
Subjects:H Social Sciences > HB Economic Theory
College/School:College of Social Sciences > Adam Smith Business School > Economics
Journal Name:Journal of Economic Dynamics and Control
Publisher:Elsevier BV
Published Online:10 June 2010

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