In this paper we derive a model of aggregate investment that builds from the lumpy microeconomic behavior of firms facing stochastic fixed adjustment costs. Instead of the standard sharp (S,s) bands, firms' adjustment policies take the form of a probability of adjustment (adjustment hazard) that responds smoothly to changes in firms' capacity gap. The model has appealing aggregation properties, and yields nonlinear aggregate time series processes. The passivity of normal times is, occasionally, more than offset by the brisk response to large accumulated shocks. Using within and out-of-sample criteria, we find that the model performs substantially better than the standard linear models of investment for postwar sectoral U.S. manufacturing equipment and structures investment data.
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Paper provided by Centro de Economía Aplicada, Universidad de Chile in its series Documentos de Trabajo with number
48.
Length: Date of creation: 1998 Date of revision: Handle: RePEc:edj:ceauch:48
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Ricardo J. Caballero, 1997.
"Aggregate Investment,"
NBER Working Papers
6264, National Bureau of Economic Research, Inc.
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Simon Gilchrist & Charles Himmelberg, 1999.
"Investment: Fundamentals and Finance,"
NBER Chapters,
in: NBER Macroeconomics Annual 1998, volume 13, pages 223-274
National Bureau of Economic Research, Inc.
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