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Multi-asset bubbles equilibrium price dynamics

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  • Cordoni, Francesco

Abstract

The price-bubble and crash formation process is theoretically investigated in a two-asset equilibrium model. Sufficient and necessary conditions are derived for the existence of average equilibrium price dynamics of different agent-based models, where agents are distinguished in terms of factor and investment trading strategies. In line with experimental results, we show that assets with a positive average dividend, i.e., with a strictly declining fundamental value, display at the equilibrium price the typical hump-shaped bubble observed in experimental asset markets. Moreover, a misvaluation effect is observed in the asset with a constant fundamental value, triggered by the other asset that displays the price bubble shape when a sharp price decline is exhibited at the end of the market.

Suggested Citation

  • Cordoni, Francesco, 2025. "Multi-asset bubbles equilibrium price dynamics," The North American Journal of Economics and Finance, Elsevier, vol. 75(PA).
    • Handle: RePEc:eee:ecofin:v:75:y:2025:i:pa:s1062940824002067
    DOI: 10.1016/j.najef.2024.102281
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    More about this item

    Keywords

    Bubbles; Agent-based models; Experimental economics; Equilibrium dynamics; Multi-asset market;
    All these keywords.

    JEL classification:

    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • C90 - Mathematical and Quantitative Methods - - Design of Experiments - - - General
    • D40 - Microeconomics - - Market Structure, Pricing, and Design - - - General
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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