Bubble necessity theorem

T Hirano, AA Toda - Journal of Political Economy, 2025 - journals.uchicago.edu
Asset price bubbles are situations where asset prices exceed the fundamental values
defined by the present value of dividends. This paper presents a conceptually new …

Unbalanced growth, elasticity of substitution, and land overvaluation

T Hirano, AA Toda - arXiv preprint arXiv:2307.00349, 2023 - arxiv.org
We study the long-run behavior of land prices when land plays the dual role of a factor of
production and a store of value. In modern economies where technological progress is …

Leverage, endogenous unbalanced growth, and asset price bubbles

T Hirano, R Jinnai, AA Toda - arXiv preprint arXiv:2211.13100, 2022 - arxiv.org
We present a new theoretical framework to think about asset price bubbles in dividend-
paying assets. We study a general equilibrium macro-finance model with a positive …

A theory of rational housing bubbles with phase transitions

T Hirano, AA Toda - arXiv preprint arXiv:2303.11365, 2023 - arxiv.org
We analyze equilibrium housing prices in an overlapping generations model with perfect
housing and rental markets. We prove that the economy exhibits a two-stage phase …

Unique Equilibria in Models of Rational Asset Price Bubbles

T Hirano, AA Toda - arXiv preprint arXiv:2303.05636, 2023 - arxiv.org
Existing models of rational pure bubble models feature multiple (and often a continuum of)
equilibria, which makes model predictions and policy analysis non-robust. We show that …