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Can Optimism about Technology Stocks Be Good for Welfare? Positive Spillovers vs. Equity Market Losses

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  • Katrin Tinn
  • Evangelia Vourvachaki

Abstract

This paper analyzes the impact of equity market information imperfections on R&D driven growth. The mechanism proposed is built on two premises. First, the R&D-sector relies largely on equity finance, because of its production features. Second, equity can be persistently mispriced. This is due to investors rationally taking into account both private and public information. This paper shows that optimism in equity market can generate long-run consumption gains, despite the excess capital losses realized in the short-run. This result arises from the externalities in R&D production that result in uderinvestment in R&D in a market economy with perfect information.

Suggested Citation

  • Katrin Tinn & Evangelia Vourvachaki, 2009. "Can Optimism about Technology Stocks Be Good for Welfare? Positive Spillovers vs. Equity Market Losses," CERGE-EI Working Papers wp383, The Center for Economic Research and Graduate Education - Economics Institute, Prague.
    • Handle: RePEc:cer:papers:wp383
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    More about this item

    Keywords

    Equity mispricing; R&D growth; Optimism; Welfare.;
    All these keywords.

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General

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