There have been more than 500,000 job cuts announced around the world since October, as tracked by Bloomberg, dominated by white-collar firms like Vimeo. What began with a wave of layoffs among high-profile Big Tech companies is spreading. Consultants at McKinsey and KPMG are downsizing themselves; companies like FedEx Corp. and Boeing Co. are cutting middle management and "bureaucracy"; weak banks like Credit Suisse Group AG are being buried.