D - Microeconomics

• Market Concentration and Uniform Pricing: Evidence from Bank Mergers

  Staff Working Paper 2021-9 João Granja, Nuno Paixão

  We show that US banks price deposits almost uniformly across their branches and that this pricing practice is more important than increases in local market concentration in explaining the deposit rate dynamics following bank mergers.

  Content Type(s): Staff research, Staff working papers Topic(s): Financial institutions, Financial system regulation and policies, Market structure and pricing JEL Code(s): D, D4, G, G2, G20, G21, G28, G3, G34, L, L1, L11

• Distributional Effects of Payment Card Pricing and Merchant Cost Pass-through in Canada and the United States

  Staff Working Paper 2021-8 Marie-Hélène Felt, Fumiko Hayashi, Joanna Stavins, Angelika Welte

  Although credit cards are more expensive for merchants to accept than cash or debit cards, merchants typically pass through their costs evenly to all customers. Along with consumer card rewards and banking fees, this creates cross-subsidies between payment methods. Because higher-income individuals tend to use credit cards more than those with lower incomes, our results indicate that these cross-subsidies might lead to regressive distributional effects.

  Content Type(s): Staff research, Staff working papers Topic(s): Bank notes, Financial institutions, Financial services, Market structure and pricing, Payment clearing and settlement systems JEL Code(s): D, D1, D12, D2, D23, D3, D31, E, E4, E42, G, G2, G21, L, L8, L81

• Estimating Policy Functions in Payments Systems Using Reinforcement Learning

  Staff Working Paper 2021-7 Pablo S. Castro, Ajit Desai, Han Du, Rodney J. Garratt, Francisco Rivadeneyra

  We demonstrate the ability of reinforcement learning techniques to estimate the best-response functions of banks participating in high-value payments systems—a real-world strategic game of incomplete information.

  Content Type(s): Staff research, Staff working papers Topic(s): Digital currencies and fintech, Financial institutions, Financial system regulation and policies, Payment clearing and settlement systems JEL Code(s): A, A1, A12, C, C7, D, D8, D83, E, E4, E42, E5, E58