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Risk aversion, intertemporal substitution, and the aggregate investment-uncertainty relationship

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  • Saltari, Enrico
  • Ticchi, Davide

Abstract

We analyze the role of risk aversion and intertemporal substitution in a simple dynamic investment model. Our main finding is that risk aversion cannot by itself explain a negative relationship between aggregate investment and aggregate uncertainty, as the effect of increased uncertainty in investement also depends on the intertemporal elasticity of substitution. In particular, the relationship between aggregate investment and aggregate uncertainty is positive even if agents are very risk averse, as long as the elasticity of intertemporal substitution is low. A negative relationship requires thet the relative risk aversion and the elasticity of intertemporal substitution are both relatively high or both relatively low. We also show that the implications of our model are consistent with the available empirical evidence.
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  • Saltari, Enrico & Ticchi, Davide, 2007. "Risk aversion, intertemporal substitution, and the aggregate investment-uncertainty relationship," Journal of Monetary Economics, Elsevier, vol. 54(3), pages 622-648, April.
  • Handle: RePEc:eee:moneco:v:54:y:2007:i:3:p:622-648
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    Cited by:

    1. Inekwe John Nkwoma, 2014. "Business Cycle Variability and Growth Linkage," Monash Economics Working Papers 38-14, Monash University, Department of Economics.
    2. Julien Hugonnier & Florian Pelgrin & Pascal St-Amour, 2009. "Health and (other) Asset Holdings," Swiss Finance Institute Research Paper Series 09-18, Swiss Finance Institute.
    3. Panousi, Vasia & Papanikolaou, Dimitris, 2009. "Investment, idiosyncratic risk, and ownership," MPRA Paper 24239, University Library of Munich, Germany.
    4. Julien Hugonnier & Florian Pelgrin & Pascal St-Amour, 2010. "A structural analysis of the health expenditures and portfolio choices of retired agents," Swiss Finance Institute Research Paper Series 10-29, Swiss Finance Institute.
    5. Isoré, Marlène & Szczerbowicz, Urszula, 2017. "Disaster risk and preference shifts in a New Keynesian model," Journal of Economic Dynamics and Control, Elsevier, vol. 79(C), pages 97-125.
    6. Gianluca Femminis, 2012. "Risk aversion heterogeneity and the investment-uncertainty relationship," DISCE - Quaderni dell'Istituto di Teoria Economica e Metodi Quantitativi itemq1260, Università Cattolica del Sacro Cuore, Dipartimenti e Istituti di Scienze Economiche (DISCE).
    7. Meinen, Philipp & Roehe, Oke, 2017. "On measuring uncertainty and its impact on investment: Cross-country evidence from the euro area," European Economic Review, Elsevier, vol. 92(C), pages 161-179.
    8. Herbst, Anthony F. & Wu, Joseph S.K. & Ho, Chi Pui, 2012. "Relationship between risk attitude and economic recovery in optimal growth theory," Global Finance Journal, Elsevier, vol. 23(3), pages 141-150.
    9. Julien Hugonnier & Florian Pelgrin, 2013. "Health and (Other) Asset Holdings," Review of Economic Studies, Oxford University Press, vol. 80(2), pages 663-710.
    10. Barbara Annicchiarico & Alessandra Pelloni & Fabrizio Valenti, 2016. "Volatility and Growth with Recursive Preferences," CEIS Research Paper 387, Tor Vergata University, CEIS, revised 24 Jun 2016.
    11. Addessi, William & Saltari, Enrico, 2011. "The effect of debt tax benefits on firm investment decisions," MPRA Paper 35436, University Library of Munich, Germany.
    12. Saltari, E. & Travaglini, G., 2012. "A note on optimal capital stock and financing constraints," Economic Modelling, Elsevier, vol. 29(4), pages 1177-1180.

    More about this item

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D92 - Microeconomics - - Micro-Based Behavioral Economics - - - Intertemporal Firm Choice, Investment, Capacity, and Financing
    • E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity

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