Worker shortages, health weary customers. the covid economy has been a remarkably profitable environment for the big public companies. profits for s&p 500 companies soared 38% in the year-ending in june. according to bloomberg in the past two quarters, companies outside the finance industry posted their biggest profit margins in 70 years. it's why stocks have doubled since the march 2020 crash, the s&p 500 is up 20% this year, even after you can see there that november wobble. if that business round table -- in that business round table survey, nearly half of c.e.o.s surveyed said worker pay i...