A model demonstrates how rental investors influence housing prices during booms, indicating potential market trends.
How do rental investors affect housing price dynamics? I develop a search model that allows housing owners to invest in rental housing. The model matches the high investor share and housing price increase observed in a housing boom in Oslo, Norway, while featuring increasing price‐to‐rent, and correlation of the buy‐to‐let share with housing price growth. In the model, an exogenous shock to population inflow increases demand for both owned and rented housing. Increased rental demand induces more buy‐to‐let investors to enter the market, adding extra demand to the housing market. Search frictions are important to explain an increasing price‐to‐rent ratio.
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Erlend Eide Bø (2026) studied this question.
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