OLDWICK, N.J.--(BUSINESS WIRE)--In this AMBestTV episode, Kimberly Muccia, senior financial analyst, AM Best, said fewer catastrophe losses in 2018, along with better underwriting performance by smaller mutuals, led to better overall results for AM Best-rated U.S. property/casualty (P/C) mutual insurers. Click on http://www.ambest.com/v.asp?v=mutuals919 to view the entire program. AM Best-rated U.S. P/C mutuals sharply improved their underwriting performance in 2018. Muccia addressed the drivers…