This paper develops a quantitative model of bank failure to study how funding maturity and debt dilution shape financial distress.
Motivated by the balance-sheet dynamics preceding bank failures, the model features heterogeneous banks that choose between short- and long-term funding under limited commitment and the possibility of self-fulfilling runs.
Long-term funding reduces rollover risk but also encourages higher leverage through debt dilution.
These forces generate endogenous default and reproduce key pre-failure dynamics in leverage, funding composition, profitability, and loan performance.
Counterfactual exercises show that debt dilution primarily affects financing decisions, whereas runs mainly increase refinancing risk.
Overall, the paper highlights the importance of liability-side incentives in shaping financial distress.