Payments systems play a fundamental role in an economy by providing the mechanisms through which payments arising from transactions can be settled. The existing literature on the economics of payments systems is large but loosely organized, in that each model uses a distinct set-up and sometimes...

This paper develops a model of settlement system to study the endogenous structure of settlement networks, and the welfare consequences of clearing agent failure. The equilibrium degree of tiering is endogenously determined by the cost structure and the information structure. The degree of...

Payments systems play a fundamental role in an economy by providing the mechanisms through which payments arising from transactions can be settled. The existing literature on the economics of payments systems is large but loosely organized, in that each model uses a distinct set-up and sometimes...

This paper develops a model of settlement system to study the endogenous structure of settlement networks, and the welfare consequences of clearing agent failure. The equilibrium degree of tiering is endogenously determined by the cost structure and the information structure. The degree of...

This paper studies the welfare effects of different credit arrangements and how these effects depend on the trading mechanism and inflation. In a competitive market, a deviation from the Friedman rule is always sub-optimal. Moreover, credit arrangements can be welfare-reducing, because increased...

Digital platforms, such as Alibaba and Amazon, operate an online marketplace to facilitate transactions. This paper studies a platform's business model choice between accepting cash and issuing tokens, as well as the implications for welfare, resiliency, and interoperability. A cash platform...

We use a simple model to study whether private payment systems based on bank deposits can provide the optimal level of safety. In the model, bank deposits backed by projects are subject to default risk that can be mitigated by a depositor's ex ante and ex post monitoring. Safe payment...

A blockchain is a digital ledger that keeps track of a record of ownership without the need for a designated party to update and enforce changes to the record. The updating of the ledger is done directly by the users of the blockchain and is traditionally governed by a proof-of-work (PoW)...