Goldman Sachs researchers are warning that the US labor market may be starting to soften as private-sector data show a growing wave of layoffs across several industries, the Wall Street bank said in a new report. The firm said state filings related to planned mass layoffs have surged to their highest level since 2016, excluding the pandemic spike — the sharpest increase Goldman has tracked in nearly a decade.Layoff announcements compiled by Challenger, Gray & Christmas, a firm that tracks corporate job cut ...