Bubble economics

Tomohiro Hirano and Alexis Akira Toda

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: This article provides a self-contained overview of the theory of rational asset price bubbles. We cover topics from basic definitions, properties, and classical results to frontier research, with an emphasis on bubbles attached to real assets such as stocks, housing, and land. The main message is that bubbles attached to real assets are fundamentally nonstationary phenomena related to unbalanced growth. We present a bare-bones model and draw three new insights: (i) the emergence of asset price bubbles is a necessity, instead of a possibility; (ii) asset pricing implications are markedly different between balanced growth of stationary nature and unbalanced growth of nonstationary nature; and (iii) asset price bubbles occur within larger historical trends involving shifts in industrial structure driven by technological innovation, including the transition from the Malthusian economy to the modern economy.

Keywords: bubbles attached to real assets; necessity versus possibility; nonstationarity; technological progress; unbalanced growth (search for similar items in EconPapers)
JEL-codes: G10 (search for similar items in EconPapers)
Date: 2024-04-01
New Economics Papers: this item is included in nep-his
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Published in Journal of Mathematical Economics, 1, April, 2024, 111. ISSN: 0304-4068

Downloads: (external link)
http://eprints.lse.ac.uk/122042/ Open access version. (application/pdf)

Related works:
Working Paper: Bubble Economics (2025)
Journal Article: Bubble economics (2024)
Working Paper: Bubble Economics (2023)
Working Paper: Bubble Economics (2023)
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Persistent link: https://EconPapers.repec.org/RePEc:ehl:lserod:122042

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