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Necessity of Rational Asset Price Bubbles in Two Sector Growth Economies

Author

Listed:
  • Tomohiro HIRANO
  • Ryo Jinnai
  • Alexis Akira Toda

Abstract

We present plausible economic models in which an equilibrium with rational asset price bubbles exists but equilibria with asset prices equal to fundamental values do not. These economies feature multiple sectors with faster economic growth than dividend growth. In our two-sector endogenous growth model, entrepreneurs have access to a production technology subject to idiosyncratic investment risk (tech sector) and trade a dividend-paying asset (land). When leverage is relaxed beyond a critical value, the unique trend stationary equilibrium exhibits a phase transition from the fundamental regime to the bubbly regime with growth, implying the inevitability of bubbles with loose financial conditions.

Suggested Citation

  • Tomohiro HIRANO & Ryo Jinnai & Alexis Akira Toda, 2023. "Necessity of Rational Asset Price Bubbles in Two Sector Growth Economies," CIGS Working Paper Series 23-002E, The Canon Institute for Global Studies.
    • Handle: RePEc:cnn:wpaper:23-002e
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    References listed on IDEAS

    as
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    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    bubble; endogenous growth; leverage; phase transition; transversality condition. JEL codes: D52; D53; G12.;
    All these keywords.

    JEL classification:

    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets

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