Transplants of donated stem cells save the lives of many patients with blood diseases. Donation is somewhat painful, but rarely has lasting adverse effects. Patients can accept transplants only from donors with compatible immune systems. Those lacking a sibling match must seek donations from the...

We describe methods for measuring liquidity provision that can be applied to real-time gross settlement payment systems. Using data from CHAPS, the UK large-value payment system, we find that smaller banks tend to provide more liquidity than larger banks, relative to their payment flows. We use...

The multiple payments settlement systems available in the United States differ on several dimensions. The Fedwire Funds Service, a utility that operates a U.S. large-value payments-settlement service, offers the fastest speed of settlement. Recognizing that payments differ in the urgency with...