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Safe Asset Shortages and Asset Price Bubbles

Author

Listed:
  • Kosuke Aoki

    (University of Tokyo)

  • Tomoyuki Nakajima

    (Kyoto University and CIGS)

  • Kalin Nikolov

    (European Central Bank)

Abstract

We build a model economy in which a shortage of safe assets can create conditions for intrinsically useless `safe' bubble assets to circulate at a positive price. Our environment features infinitely lived individuals who are not subject to credit constraints but who face uninsurable idiosyncratic production risk. Bubbly equilibria exist when safe assets offer real returns below the growth rate of the economy. Bubble assets circulate at a positive price only if they offer returns which are safe relative to production returns. These `safe' bubbles reduce consumption volatility but exert a contractionary effect on the economy.

Suggested Citation

  • Kosuke Aoki & Tomoyuki Nakajima & Kalin Nikolov, 2014. "Safe Asset Shortages and Asset Price Bubbles," KIER Working Papers 894, Kyoto University, Institute of Economic Research.
    • Handle: RePEc:kyo:wpaper:894
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    References listed on IDEAS

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    Cited by:

    1. Miao, Jianjun, 2014. "Introduction to economic theory of bubbles," Journal of Mathematical Economics, Elsevier, vol. 53(C), pages 130-136.
    2. Alberto Martin & Jaume Ventura, 2018. "The Macroeconomics of Rational Bubbles: A User's Guide," Annual Review of Economics, Annual Reviews, vol. 10(1), pages 505-539, August.
    3. Bidian, Florin, 2016. "Robust bubbles with mild penalties for default," Journal of Mathematical Economics, Elsevier, vol. 65(C), pages 141-153.
    4. Hori, Takeo & Im, Ryonghun, 2023. "Asset bubbles, entrepreneurial risks, and economic growth," Journal of Economic Theory, Elsevier, vol. 210(C).
    5. Ricardo Reis, 2021. "The constraint on public debt when r," Discussion Papers 2111, Centre for Macroeconomics (CFM).
    6. Hirano, Tomohiro & Toda, Alexis Akira, 2024. "Bubble economics," Journal of Mathematical Economics, Elsevier, vol. 111(C).
    7. Tomohiro Hirano & Alexis Akira Toda, 2023. "Bubble Necessity Theorem," Papers 2305.08268, arXiv.org, revised Apr 2024.
    8. Takuma Kunieda & Tarishi Matsuoka & Akihisa Shibata, 2017. "Asset Bubbles, Technology Choice, and Financial Crises," Discussion Paper Series 157, School of Economics, Kwansei Gakuin University, revised Feb 2017.
    9. Bosi, Stefano & Le Van, Cuong & Pham, Ngoc-Sang, 2017. "Asset bubbles and efficiency in a generalized two-sector model," Mathematical Social Sciences, Elsevier, vol. 88(C), pages 37-48.
    10. Hirano, Tomohiro & Inaba, Masaru & Yanagawa, Noriyuki, 2015. "Asset bubbles and bailouts," Journal of Monetary Economics, Elsevier, vol. 76(S), pages 71-89.
    11. W. Brent Lindquist & Svetlozar T. Rachev, 2024. "Alternatives to classical option pricing," Papers 2403.17187, arXiv.org.
    12. Sushant Acharya & Keshav Dogra, 2022. "The Side Effects of Safe Asset Creation," Journal of the European Economic Association, European Economic Association, vol. 20(2), pages 581-625.
    13. Plantin, Guillaume, 2023. "Asset bubbles and inflation as competing monetary phenomena," Journal of Economic Theory, Elsevier, vol. 212(C).
    14. Stefano Bosi & Cuong Le Van & Ngoc-Sang Pham, 2017. "Rational Land and Housing Bubbles in Infinite-Horizon Economies," Studies in Economic Theory, in: Kazuo Nishimura & Alain Venditti & Nicholas C. Yannelis (ed.), Sunspots and Non-Linear Dynamics, chapter 0, pages 203-230, Springer.
    15. Dániel Horváth & Róbert Szini, 2015. "The safety trap – the financial market and macroeconomic consequences of the scarcity of safe assets," Financial and Economic Review, Magyar Nemzeti Bank (Central Bank of Hungary), vol. 14(1), pages 111-138.
    16. Michau, Jean-Baptiste & Ono, Yoshiyasu & Schlegl, Matthias, 2023. "Wealth preference and rational bubbles," European Economic Review, Elsevier, vol. 156(C).
    17. repec:cbh:journl:v:14:y:2015:i:1:p:111-138 is not listed on IDEAS
    18. Hajime Tomura, 2019. "Elderly Care and Multiple Monies," Working Papers 1909, Waseda University, Faculty of Political Science and Economics.
    19. Svetlozar T. Rachev & Stoyan V. Stoyanov & Frank J. Fabozzi, 2017. "Financial Markets With No Riskless (Safe) Asset," International Journal of Theoretical and Applied Finance (IJTAF), World Scientific Publishing Co. Pte. Ltd., vol. 20(08), pages 1-24, December.
    20. Tomoyuki Nakajima & Shuhei Takahashi, 2020. "On the Non-Existence of a Zero-Tax Steady State with Incomplete Asset Markets," KIER Working Papers 1025, Kyoto University, Institute of Economic Research.
    21. Ryosuke Shimizu, 2018. "Bubbles, growth and imperfection of credit market in a two-country model," Annals of Finance, Springer, vol. 14(3), pages 353-377, August.
    22. Amol Amol & Erzo G. J. Luttmer, 2022. "Permanent Primary Deficits, Idiosyncratic Long-Run Risk, and Growth," Working Papers 794, Federal Reserve Bank of Minneapolis.

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    More about this item

    Keywords

    Safe Asset Shortage; Asset Price Bubbles.;

    JEL classification:

    • E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles

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