This paper models an unexplored source of liquidity risk faced by large broker-dealers: collateral runs. By setting different contracting terms on repurchase agreements with cash borrowers and lenders, dealers can source funds for their own activities. Cash borrowers internalize the risk of...

We present an estimate of the total amount of funds primary dealers can access from the intermediation of cash and securities through secured funding transactions (SFTs). We highlight how this activity can introduce an additional source of risk: the abrupt withdrawal of cash borrowers, which we...