This paper describes segregated balance accounts (SBAs), a concept for a new type of account that could provide increased competition for deposits, reduce system-wide balance sheet costs, and improve the transmission of monetary policy by facilitating greater pass-through of interest on excess...

It takes many years for more efficient electronic payments to be widely used, and the fees that merchants (consumers) pay for using those services are increasing (decreasing) over time. We address these puzzles by studying payments system evolution with a dynamic model in a twosided market...