Homeowner Insurance Catastrophe Impact

The Issue:

The Facts:

Insurance works by pooling risk, but there are circumstances under which the system breaks down. Homeowners insurance works by grouping together a large number of properties and transferring the individual property risks to the group. Policyholders pay the average expected loss rather than the individual actual loss.

In order for the system to work, insurers need to have a relatively accurate estimate of future losses and be able to charge a premium based on those predictions. But there are conditions under which this does not work.

If the properties in the pool are highly correlated such that everybody is impacted at the same time, for instance during an earthquake or large-scale wildfires or flooding, then the system can break down. Problems also arise if the confidence of the predictions is eroded. Insurance providers tend to rely on historical data for loss and cost estimates such that expectations are based on previous weather patterns, previous inflation rates and previous interest rates. All those factors have seen increased uncertainty in the last few years. 

= Insurance companies are not always able to raise premiums high enough or fast enough to cover their growing costs. Premiums have to be approved in nearly every state by the state regulator. It is a slow process that is also impacted by political forces.

Many insurance commissioners are either elected or appointed and their jobs are at risk if they let insurance rates go too high. Insurance companies were in a tough spot when reinsurance rates unexpectedly increased dramatically in 2022 and 2023. Even if state regulators allow a commensurate rate increase, it might take them two to three years to approve it.

A lack of affordable home insurance can have widespread consequences for the economy. In order to have a resilient community, one that can recover from a catastrophic event, you have to have some sort of program that’s going to help pay for losses. Insurance tends to be the one used historically in the United States, combined with different governmental programs.

A lack of insurance tends to make recovery from a catastrophe more difficult for individuals and communities. In a situation of widespread damage, lenders can be at risk as defaults rise. More broadly, friction in the home insurance sector impacts people’s ability to buy and sell homes. Lenders cannot provide loans unless their collateral is insured. Ultimately, lack of well-functioning insurance markets would limit economic growth.

What this Means:

In the short term, the outlook for insurance is nebulous. Although inflation has decreased from its post-pandemic highs, prospects point to likely increasing homebuilding costs. The construction sector already faces labor challenges and these are likely to get worse with deportation of undocumented immigrants. If tariffs raise prices in the housing sector, this will also contribute to higher insurance costs and rising premiums.

Over a longer horizon, through mitigation and wiser development (changing the way we build houses and where we build them) there is a path for improvement. If we can find ways to build homes that are more resistant to damages and able to recover and not be unusable after an event, then eventually we will have a stronger housing stock. But it will require more active government involvement in mandating certain building codes and better-informed consumers demanding certain types of construction when they buy a house.