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Idiosyncratic and Common Shocks to Investment Decisions

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Author Info
Schankerman, Mark
Abstract

This Paper shows how microeconomic data on investment plans can be used to study the structure of risk faced by firms. Revisions of investment plans form a martingale, and thus reveal the underlying shocks driving investment. We decompose revisions in investment plans into micro, sector and aggregate shocks, and exploit stock market data to distinguish between structural (value-related) shocks and measurement error in investment revisions. Using panel data for US firms, we find that micro shocks are not the dominant source of risk in investment decisions, and that much of the observed micro variation is actually due to heterogeneity in firm-level responses to aggregate shocks. Firms are able to diversify most idiosyncratic investment risk, and they do not appear to be liquidity-constrained.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 2982.

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Date of creation: Sep 2001
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Handle: RePEc:cpr:ceprdp:2982

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Related research
Keywords: aggregate shocks; heterogeneity; investment; micro shocks;

Find related papers by JEL classification:
D24 - Microeconomics - - Production and Organizations - - - Production; Capital and Total Factor Productivity; Capacity
E22 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment - - - Capital; Investment; Capacity

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  1. Paul A. de Hek, 2002. "Endogenous Technological Change under Uncertainty," Tinbergen Institute Discussion Papers 02-047/2, Tinbergen Institute, revised 08 Nov 2002. [Downloadable!]
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This page was last updated on 2009-11-25.

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