Discussion paper

DP13834 Externalities and financial crisis - enough to cause collapse?

After the boom in US subprime lending came the bust - with a run on US shadow banks. The magnitude of boom and bust were, it seems, amplified by two significant externalities triggered by aggregate shocks: the endogeneity of bank equity due to mark-to-market accounting and of bank liquidity due to ‘fire-sales’ of securitised assets. We show how adding a systemic ‘bank run’ to the canonical model of Adrian and Shin allows for a tractable analytical treatment - including the counterfactual of complete collapse that forces the Treasury and the Fed to intervene.


Miller, M and L Zhang (2019), ‘DP13834 Externalities and financial crisis - enough to cause collapse?‘, CEPR Discussion Paper No. 13834. CEPR Press, Paris & London. https://cepr.org/publications/dp13834