A new survey showed that policyholders in the U.S. don’t re-shop to find better coverage or rates. One out of every three Americans have never re-shopped for a policy, say the results of a new insurance customer trends survey. The research found that almost half of all policyholders who have looked around for a better deal has not done so within the last year. The research was conducted on homeowners insurance and auto insurance customers. American consumers are risking overpaying for their coverage, say the results of a new Policygenius…