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Innovation and Idiosyncratic Risk

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  • Mariana Mazzucato

    (Economics Open University)

  • Massimiliano Tancioni

Abstract

The paper studies whether “idiosyncratic risk†, i.e. the degree to which firm and industry specific returns are more volatile than aggregate market returns, is higher in innovative industries which are characterized by more risk and uncertainty. Volatility is studied both at the industry level (for 34 different industries from 1974-2003) and at the firm level (for 5 industries with different levels of innovativeness: biotech, pharmaceuticals, computers, textile, agriculture). Findings are mixed. A relationship between innovation and volatility emerges most strongly with firm level data, when firm dimension is accounted for, and when time varying volatility is explicitly studied via GARCH analysis. The latter highlights the distinctive behavior of returns during the course of the industry life-cycle.

Suggested Citation

  • Mariana Mazzucato & Massimiliano Tancioni, 2005. "Innovation and Idiosyncratic Risk," Computing in Economics and Finance 2005 81, Society for Computational Economics.
    • Handle: RePEc:sce:scecf5:81
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    Cited by:

    1. Daniela Grieco, 2018. "Innovation and stock market performance: A model with ambiguity-averse agents," Journal of Evolutionary Economics, Springer, vol. 28(2), pages 287-303, April.

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    More about this item

    Keywords

    idiosyncratic risk; volatility; innovation; industry life cycle;
    All these keywords.

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

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