OLDWICK, N.J.–(BUSINESS WIRE)–Credit rating activity for the U.S. property/casualty (P/C) industry in the first half of 2017 was favorable, with upgrades outpacing downgrades. Nearly one-third of the 2017 upgrades were driven by increased parental support, on-going mergers and acquisitions (M&A) and the generally enhanced importance of companies within specific organizations. Other positive rating actions were due to tightened underwriting standards that have led to sustained favorable re