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I.VW Research Seminar – Ishita Sen, Harvard Business School

I.VW Research Seminar – Ishita Sen, Harvard Business School

Pricing of Climate Risk Insurance: Regulatory Frictions and Cross-Subsidies

Homeowners’ insurance provides households financial protection from climate losses. To improve access and affordability, state regulators impose price controls on insurance companies. Using novel data, we construct a new measure of rate setting frictions for individual states and show that different states exercise varying degrees of price control, which positively correlates with how exposed a state is to climate events. In high friction states, insurers are more restricted in their ability to set rates and adjust rates less frequently and by a lower amount after experiencing climate losses. In part, insurers overcome pricing frictions by cross-subsidizing insurance across states. By comparing the same insurer’s pricing behavior across different states, we show that insurers respond to losses in high friction states by increasing rates in low friction states. Over time, rates get disjoint from underlying risk and grow faster in states with low pricing frictions. Our findings, which we rationalize in a model that extends the standard insurance supply framework, have consequences for how climate risk is shared in the economy and for long-term access to insurance.

If you have questions please contact
Prof. Dr. Anastasia Kartasheva
Tel.: +41 71 224 79 95
E-Mail:

29. March 2022

Location: Online via Zoom

Date: 29.03.2022, 16:00 bis 17:00