Digital banking and the evolving monetary policy transmission

Katarzyna Budnik

No 3206, Working Paper Series from European Central Bank

Abstract: This paper maps the euro-area digital-banking segment and assesses how digital banks transmit monetary policy relative to brick-and-mortar peers. I compile a hand-checked universe of over 170 digital banks (2016–2025) from supervisory data, classifying institutions by business model (e-retail, e-service, e-wholesale). Digital banks are small on average yet growing fast, rely more on household deposits—predominantly overnight—and hold larger cash buffers and intangibles than traditional banks. Using a difference-in-differences design around the ECB tightening cycle that began in July 2022 and the initial 2024 easing. Three results stand out. (i) The funding channel is stronger and faster at digital banks in tightening: household deposit rates rise more and retail-funding spreads compress less, especially at overnight maturities and for stand-alone digital banks. Corporate-funding results are directionally similar but weaker and less robust. (ii) Loan-rate pass-through is not stronger, implying margin compression and a later slowdown in lending growth at digital banks despite continued retail inflows. Household deposits are markedly more rate-sensitive than corporate or unsecured funding. (iii) In early easing, digital banks cut new funding rates relatively quickly —particularly at longer maturities — yet effective deposit premia persist and retail inflows soften while margins begin to normalise. Policy implications concern the interaction of market digital adoption and banks’ capacity to adjust balance-sheet duration through the monetary cycle, along with financial stability. JEL Classification: E52, G21, E51, E43, E58, O3

Keywords: deposit competition; deposit rate pass-through; digital banks; ECB tightening cycle; household deposits; monetary policy transmission; neobanks; overnight deposits; retail funding (search for similar items in EconPapers)
Date: 2026-03
Note: 1355359
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