by Boris Hofmann, Matthias Kaldorf, Matthias Rottner We analyse the macroeconomic impact of stablecoins using a quantitative macroeconomic model. Stablecoins influence the economy through two opposing channels: (i) a bank lending channel, as household demand for stablecoins raises deposit rates, increases bank funding costs, and reduces loan supply; and (ii) a fiscal space channel, as stablecoin issuers’ demand for Treasury bills lowers sovereign borrowing costs, expands fiscal space for tax reductions or higher spending.