U.S. commercial property/casualty insurance rates rose 5% on average in the fourth quarter of 2019, up from 4% in the third quarter, reflecting insurers’ intent to continue to increase prices across most lines, Business Insurance reported. The rates are tracked by online insurance exchange MarketScout Corp. “Auto rate increases have been up all year long; however D&O (directors and officers) and professional rate increases have spiked significantly in the fourth quarter,” MarketScout CEO Richard Kerr said in a statement. D&O liability rates increased by 8.25%, while commercial auto increased 8% in the quarter, and professional liability rates were up 6%, and umbrella/excess rates were up 5.5%, according to MarketScout.