英国国家经济和社会研究所：内生违约、风险价值与商业周期（英文版）

I propose a general equilibrium model with endogenous defaults and a banking sector operating under a Value-at-Risk constraint. Analytical examination reveals that (a) the Value-at-Risk rule introduces a risk premium on bank lending, (b) this risk premium fluctuates with the business cycle, amplifying the impact of real shocks, and (c) bank leverage also fluctuates with real shocks, but its cyclical behaviour depends on the shocks’ effects on default expectations, credit demand, and the bank’