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Using structural shocks to identify models of investment

John Roberts

No 2005-69, Finance and Economics Discussion Series from Board of Governors of the Federal Reserve System (U.S.)

Abstract: This paper uses the response of investment to identified structural shocks to investigate some key issues, including the nature of adjustment costs and investment's responsiveness to user cost. In the estimation, the model parameters are chosen to match as closely as possible the impulse responses from an identified VAR. In the preferred results, both investment- and capital-stock adjustment costs are important; the size of the capital-stock adjustment costs is in line with estimates from firm-level studies; the investment-adjustment costs suggest rapid adjustment of investment to its desired level; and the estimated elasticity of substitution between capital and other inputs is considerably smaller than one. There is, however, an important sensitivity: The VAR's identified aggregate demand shock leads to a large crowding out effect--when output expands, investment falls. When this shock is included among those matched, the elasticity of substitution is near one and only investment adjustment costs are important.

Keywords: Investments; Econometric models (search for similar items in EconPapers)
Date: 2005
New Economics Papers: this item is included in nep-cfn and nep-mac
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