deposits excessively fragile in which case there is a role for outside bank capital. Greater bank capital reduces liquidity … creation by the bank but enables the bank to survive more often and avoid distress. A more subtle effect is that banks with … different amounts of capital extract different amounts of repayment from borrowers. The optimal bank capital structure trades …

We study a modification of the Diamond and Dybvig (1983) model in which the bank may hold a liquid asset, some … depositors see sunspots that could lead them to run, and all depositors have incomplete information about the bank's ability to … survive a run. The incomplete information means that the bank is not automatically incentivized to always hold enough liquid …

Banks are optimally opaque institutions. They produce debt for use as a transaction medium (bank money), which requires … that information about the backing assets - loans - not be revealed, so that bank money does not fluctuate in value …-insensitive assets. For the economy as a whole, firms endogenously separate into bank finance and capital market/stock market finance …

The regulation of bank capital as a means of smoothing the credit cycle is a central element of forthcoming macro …--on both questions, using a unique dataset. In the UK, regulators have imposed time-varying, bank-specific minimum capital …

social benefits in terms of macro-stability: recoveries from financial crisis recessions are much quicker with higher bank …

effectiveness of a variety of central bank policies, including reducing intermediaries' borrowing costs, infusing equity capital …