The Exchange Rate Between Monetary and Fiscal Policy: What Is an Interest Rate Cut Worth?
When monetary policy is constrained, how large a scal transfer substitutes for a given interest rate cut? Using full-population Danish administrative data, we estimate household consumption responses to adjustable-rate mortgage resets and to unanticipated cash inheritances. A 1 percentage point rate cut maps to uniform transfers of approximately $1,000 per person over 5 years, totaling 1.3% of GDP. These macro-equivalent policies operate through distinct balance-sheet channels with dierent distributional incidence: rate cuts disproportionately stimulate high-income mortgage holders, while transfers are progressive. Marginal propensities to consume vary only modestly across income and liquid-wealth distributions, limiting eciency gains from targeting.
