We develop a tractable macro-finance model in which entrepreneurs cannot pool idiosyncratic risks across firms due to restricted market participation. Costly risk pooling is provided by financial intermediaries who also issue safe assets via balance sheet leverage. We characterize the general equilibrium effects that associate intermediation costs to the dynamics of output and show that higher (lower) cost efficiency fosters (weakens) growth but also amplifies (dampens) its fluctuations. The model predicts negative relationships between the financial sector’s costs-to-assets and leverage ratios and the business cycle, which we find to hold for the US economy.
Risk pooling, intermediation efficiency, and the business cycle
Dindo P.;Modena A.
;Pelizzon L.
2022-01-01
Abstract
We develop a tractable macro-finance model in which entrepreneurs cannot pool idiosyncratic risks across firms due to restricted market participation. Costly risk pooling is provided by financial intermediaries who also issue safe assets via balance sheet leverage. We characterize the general equilibrium effects that associate intermediation costs to the dynamics of output and show that higher (lower) cost efficiency fosters (weakens) growth but also amplifies (dampens) its fluctuations. The model predicts negative relationships between the financial sector’s costs-to-assets and leverage ratios and the business cycle, which we find to hold for the US economy.File | Dimensione | Formato | |
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