CBDC and business cycle dynamics in a New Monetarist New Keynesian model
The European Central Bank (ECB) published a paper on the impact of an interest-bearing central bank digital currency (CBDC) on the economy. It integrates a New Monetarist-type decentralized market that accounts for the means-of-exchange function of bank deposits and CBDC into a New Keynesian model with financial frictions. It concludes that the introduction of an interest-bearing CBDC does not impair monetary policy transmission. Also it stabilizes the liquidity premium, thereby affecting bank funding conditions and the opportunity costs of money, which dampens and smooths the reaction of investment and consumption to macroeconomic shocks.