Zusammenfassung:
We document a novel transmission channel of monetary policy through the homeowners insurance market. On average, contractionary monetary policy shocks result in higher homeowners insurance prices. Using granular data on insurers' balance sheets, we show that this effect is driven by the interaction of financial frictions and the interest rate sensitivity of investment portfolios. Specifically, rate hikes reduce the market value of insurers' assets, tightening insurers' balance sheet constraints and increasing their shadow cost of capital. These frictions in insurance supply amplify the effects of monetary policy on real estate and mortgage markets by making housing less affordable. We find that monetary policy shocks have a stronger impact on home prices and mortgage applications when local insurers are more sensitive to interest rates. This channel is particularly pronounced in areas where households face high climate risk exposure. Our findings highlight the role of insurance markets in amplifying macroeconomic shocks and the interconnections between homeowners insurance, residential real estate, and mortgage lending