Payment scale economies affect banking costs, competition in payment services, and pricing. Our scale measure relates operating cost to physical measures of European banking "output", finding large economies. This differs from relating total cost to the value of balance sheet assets (the...

Cash use in most countries is falling slowly. On the margin, younger adults favor cash substitutes over cash. For older adults it is the reverse. Revealed preference tied to a changing population age structure seems to be the main influence on the demand for cash and why it is falling. Cash use...