We analyse a two period model of the interbank market, i.e. the market at which banks trade liquidity. We assume that banks do not take the interbank interest rate as given, but multilaterally negotiate on interest rates and transaction volumes. The solution concept applied is the Shapley value....

Data show that sovereign risk reduces liquidity, increases funding cost and risk of banks highly exposed to it. I build a model that rationalizes this fact. Banks act as delegated monitors and invest in risky projects and in risky sovereign bonds. As investors hear rumors of increased sovereign...