We construct a vintage capital à la Whelan (2002) with both exogenous embodied and disembodied technical progress, and variable utilization of each vintage. The lifetime of capital goods is endogenous and it relies on the associated operation costs. Within this model, we identify the rate of age-related depreciation and the rate of scrapping. We study the properties of the balanced growth paths of the model. First, we show that the lifetime of capital is an increasing (resp. decreasing) function of the rate of disembodied (resp. embodied) technical progress. Second, we show that both the age-related depreciation rate and the scrapping rate increase when embodied technical progress accelerates. In contrast, the latter drops when disembodied technical progress accelerates while the former remains unaffected.
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Paper provided by Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie) in its series Working Papers. Serie AD with number
2005-22.
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Michael J. Geske & Valerie A. Ramey & Matthew D. Shapiro, 2004.
"Why Do Computers Depreciate?,"
NBER Working Papers
10831, National Bureau of Economic Research, Inc.
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