I found this especially interesting...

When you buy a car, your insurer underwrites the risk according to your age, driving/arrest/ticket record, type of car, amount of use and other factors. A teenage driver behind the wheel of a Porsche is going to pay a lot more than a 50-year-old house wife. A driver with DUI convictions may not get insurance at all. Like vehicles, you should be required to have a policy before you even applied for a gun permit. Every seller would have to follow this rule before making a transaction.

This is where social economics goes beyond theory. Those most at risk to commit a gun crime would be known to the actuaries doing the research for insurers. They would be underwritten according to age, mental health, place of residence, credit/bankruptcy record and marital status. Keep in mind that insurance companies have mountains of data and know how to use it to price policies, or in industry parlance, to reduce the risk/loss ratio.

Who pays the least for gun insurance would be least likely to commit a crime with it. An 80-year-old married woman in Fort Lauderdale would get a great rate. A 20-year-old in inner-city Chicago wouldn’t be able to afford it.