OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best is revising its outlook on the commercial lines segment of the U.S. property/casualty industry to stable from negative for 2018, citing an embedded change in the sophistication of the segment’s pricing and underwriting infrastructure and the segment’s resilience amid a variety of macroeconomic and insurance market issues in recent years. The Best’s Briefing, titled, “Market Segment Outlook: U.S. Commercial Lines,” notes that while the pricing environmen